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727 tools
Free ChessPlay chess free in your browser on OneFreePlace. Local two-player and computer modes, clocks, move history, undo, board flip and full legal chess rules.Free Klondike SolitairePlay polished Klondike Solitaire free in your browser on OneFreePlace. Draw 1 or 3, undo moves, hints, scoring, timer and responsive mobile play.Free SudokuA polished, distraction-free Sudoku with unique puzzles, four difficulty levels, pencil notes, hints, mistake checking and keyboard support.Free 2048Merge matching tiles, build your highest number and chase a better score. Fast, polished and saved automatically on this device.Free SnakeA polished browser Snake game built for fast keyboard play, smooth mobile swipes and satisfying repeat runs. Classic rules, alternate modes, daily challenge, local stats and zero signup.Free Tic-Tac-ToeA polished strategy classic with unbeatable play, move-quality coaching, match series, local two-player, deep records and a fresh daily tactical challenge.Free Internet Speed TesterStart lightweight or use a longer test for fast fibre connections. The test automatically scales transfer sizes inside the selected ceiling.Free Keyboard TesterTap the field to open an on-screen keyboard. Mobile keyboards often expose text-input events rather than reliable physical key codes, so this checks text entry while keeping physical-key diagnostics separate.Free Mouse TesterCounts are based on browser events, not direct USB/HID access.Free Microphone TestGrant access first; browsers usually hide device names until permission is allowed.Free Webcam TestStart the camera to see the exact stream your browser receives. Nothing is uploaded by this standalone tool.Free Speaker TestOpen Speaker Test and complete the task in your browser, free of charge.Free Screen / Dead Pixel TestOpen Screen / Dead Pixel Test and complete the task in your browser, free of charge.Free Typing Speed TestOpen Typing Speed Test and complete the task in your browser, free of charge.Free CPS TestOpen CPS Test and complete the task in your browser, free of charge.Free Reaction Time TestWait for the cue, then react as quickly as you can. Spacebar also works in visual and audio modes.Free Screen RecorderNothing is uploaded. Choose your recording options, then select Start recording and your browser will ask which tab, window, or screen to share.Free Online Voice RecorderRecord, pause, review, and download microphone audio directly in your browser with a live waveform and privacy-first local processing.Free Length ConverterConvert metric, imperial, and nautical length units with live results, quick presets, and a whole-table comparison.Free Weight / Mass ConverterConvert metric and imperial mass units from milligrams to tonnes, pounds, stone, and US/Imperial tons.Free Merge PDFMerge PDF files in any order, choose page ranges, inspect file/page counts, set output metadata and download one combined PDF. Files are processed in your browser.Free Split PDFSplit a PDF by page ranges, every N pages, single pages, odd/even pages or custom groups. Preview page counts, name outputs and download a ZIP — processed in your browser.Free Compress PDFCompress PDFs privately in your browser using lossless optimization or controllable image compression.Free PDF to JPGConvert PDF pages to high-quality JPG images privately in your browser. Choose page ranges, DPI, quality, background, filename pattern and direct JPG / ZIP export.Free JPG to PDFTurn JPG images into a polished PDF in your browser. Reorder, rotate, choose page sizes, margins, captions and metadata.Free PNG to PDFConvert PNG images to a polished PDF in your browser with transparency control, reordering, rotation, page sizing, margins, captions and lossless PNG embedding.Free PDF to PNGConvert PDF pages to lossless PNG images privately in your browser. Choose pages, DPI, transparent or solid background, rotation, filenames and ZIP export.Free Word to PDFConvert DOCX to PDF privately in your browser with a high-fidelity print path and direct-download image PDF path. Preview, page-size, margins and metadata controls included.Free PDF to WordConvert PDF to DOCX privately in your browser. Choose editable text, Smart mixed, or visual-fidelity output with page ranges, scan fallbacks and Word page controls.Free Excel to PDFConvert XLSX, XLS and CSV files to PDF privately in your browser with worksheet selection, ranges, repeating headers, page controls and direct or print export.Free PowerPoint to PDFConvert PPTX to PDF privately in your browser with sandboxed high-fidelity rendering, slide ranges, hidden-slide control, diagnostics, print-to-PDF and direct PDF snapshot export.Free Rotate PDFRotate PDF pages permanently in your browser. Select exact pages, odd/even or portrait/landscape pages, rotate left/right/180, normalize orientation, undo, preview, and download privately.Free Reorder PDF PagesReorder PDF pages privately in your browser with drag-and-drop, multi-select block moves, reverse, odd/even sequences, interleave halves, duplicate, undo/redo, lazy previews and lossless page copying.Free Extract PDF PagesExtract PDF pages privately in your browser. Select exact pages, odd/even, portrait/landscape or invert selection; preserve source or selection order; export one PDF, separate PDFs, or contiguous groups.Free Delete PDF PagesDelete PDF pages privately in your browser with visual thumbnails, ranges, odd/even and orientation selectors, keep-only mode, deterministic blank-page detection, undo and non-raster PDF output.Free Add Page Numbers to PDFAdd professional page numbers to PDF privately in your browser. Choose ranges, templates, numbering styles, facing-page mirroring, position, font, size, color, opacity and live preview.Free Protect PDFPassword protect PDF files locally with AES-256 encryption, separate owner passwords and granular print, edit and copy permissions.Free Unlock PDFRemove PDF passwords locally in your browser when you know the password. Inspect encryption, test the password, decrypt, optionally remove signature restrictions, and download an unlocked copy.Free JSON Formatter & ValidatorFormat and validate JSON locally with lossless large-number handling, duplicate-key detection, precise diagnostics, JSON Lines support, safe repair and JSON Pointer tools.Free XML FormatterFormat, validate, inspect and query XML locally with namespace intelligence, XPath evaluation, tree view and security diagnostics.Free Regex TesterTest, debug, explain, replace, extract and unit-test JavaScript regular expressions locally with worker-isolated execution and timeout protection.Free Base64 Encode / DecodeEncode and decode Base64, Base64URL, files and Data URIs locally in your browser. Inspect bytes, MIME type, SHA-256 and hex without uploading anything.Free URL Encode / DecodeEncode and decode URLs, components, form data and query strings locally with RFC 3986 tools, recursive decode, diagnostics and a query workbench.Free UUID GeneratorGenerate, validate, inspect and convert RFC 9562 UUIDs locally: v1, v3, v4, v5, v6, v7, v8, Nil and Max, with bulk export and collision analysis.Free Hash GeneratorGenerate and verify file or text hashes locally with SHA-2, SHA-3, Keccak, MD5, CRC32 and more. Streaming multi-file checksums, manifests and avalanche analysis.Free HEX / RGB / HSL Color ConverterConvert and inspect colors locally across HEX, RGB, HSL, HSV, HWB, CMYK, XYZ, Lab, LCH, Oklab and OKLCH, with contrast, palettes and Delta E comparison.Free UTM BuilderBuild, audit and batch-generate clean GA4 campaign URLs locally with UTM conventions, presets, custom parameters and exports.Free QR Code GeneratorCreate private, standards-based QR codes for URLs, Wi-Fi, contacts and more with branded styling, logos, batch ZIPs and print sheets.Free JSON MinifierMinify JSON without changing token spelling, audit structure and duplicate keys, measure real gzip savings, process JSON Lines and batch files — privately in your browser.Free JSON Tree ViewerExplore JSON privately in a fast collapsible tree with search, JSONPath, JSON Pointer, focus mode, large-array paging and local file support.Free Reading Speed CalculatorA private, browser-based word counter with live statistics, keyword density, sentence flow, readability estimates, writing goals, selection counts, and editing delta.Free Essay Length EstimatorA private Unicode-aware character counter with grapheme, code point, UTF-16 and UTF-8 counts, custom limits, SMS segment analysis, invisible-character detection and safe cleanup tools.Free Sentence CounterPrivate browser-based sentence counter with Unicode-aware sentence segmentation, sentence length distribution, repeated-start analysis, comparison, goals, selection stats, and exports.Free Paragraph CounterPrivate paragraph counter and structure analyzer with prose, line, and Markdown-aware counting, paragraph maps, repeated openings, goals, comparison, cleanup, and exports.Free Reading Time CalculatorPrivate reading-time calculator with adjustable pace, research-informed presets, read-aloud time, calibration, reverse planning, section timing, session planning, badge generation, and exports.Free Text FormatterPrivate browser-side text formatter with composable cleanup, case conversion, line tools, paragraph repair, Unicode normalization, protected zones, search/replace, previews, recipes and exports.Free Grammar CheckerA private, browser-side grammar, punctuation, style and consistency checker with explainable rules, safe fixes, house style and exportable reports.Free Spell CheckerA private multilingual spell checker with safe fixes, dictionary suggestions, typo detection, personal dictionary, reports and 25 OneFreePlace launch languages.Free Punctuation CheckerA private multilingual punctuation checker for commas, spacing, quotation marks, brackets, dashes, ellipses and script-aware typography.Free Paraphrasing ToolA private multilingual paraphrasing workspace with rewrite modes, locked terms, sentence alternatives, comparison, history and integrity checks.Free Text SummarizerA private multilingual extractive summarizer with focus terms, source traceability, section coverage, pinning, length comparison and exportable reports.Free Essay Outline GeneratorA private multilingual essay outline studio with thesis scaffolding, argument maps, evidence planning, word budgets, counterarguments, research gaps and exports.Free Social Media Image ResizerFree local social media image resizer with current platform presets, focal-point cropping, fit and blur-fill modes, safe-area guides, quality controls, batch multi-size export and no uploads.Free Instagram Image ResizerFree Instagram image resizer with 3:4 and 4:5 feed presets, grid-crop preview, Story/Reel safe guides, focal-point cropping, profile-circle preview, batch Instagram pack export and local-only processing.Free Facebook Image ResizerFree Facebook image resizer with feed, cover, group, event, Story/Reel, link preview and profile presets, dual desktop/mobile cover preview, focal-point cropping, safe guides, batch ZIP export and local-only processing.Free LinkedIn Image ResizerFree LinkedIn image resizer with feed, profile background, Page cover/logo, link preview and ad presets, responsive cover simulation, light/dark logo checks, focal-point cropping, file-limit optimization and batch ZIP export.Free TikTok Image ResizerFree TikTok image resizer for photo posts, carousels, Stories, covers, profile images and official TikTok Ad Network formats, with UI-safe previews, focal-point cropping, smart file targets and batch ZIP export.Free YouTube Thumbnail ResizerFree YouTube thumbnail resizer with 4K video, Shorts, podcast and A/B-test-ready presets, focal-point cropping, small-card previews, mobile/desktop upload-size optimization, batch ZIP export and local-only processing.Free US Net Salary CalculatorFree 2026 US net salary calculator with federal income tax brackets, Social Security, Medicare, pre-tax deductions, state/local estimates, pay-period breakdowns and offer comparison. Runs locally in your browser.Free UK Net Salary CalculatorFree 2026/27 UK net salary calculator with England/Wales/Northern Ireland and Scottish Income Tax, employee National Insurance, pension treatment, student loans, pay-period breakdowns and salary comparison. Runs locally in your browser.Free Canada Net Salary CalculatorFree 2026 Canada net salary calculator with federal and provincial tax, CPP/QPP, EI, QPIP, province comparison, offer comparison and reverse salary planning. Runs locally in your browser.Free Australia Net Salary CalculatorFree 2026–27 Australia net salary calculator with resident income tax, LITO, Medicare levy, Medicare levy surcharge, HELP repayments, super and reverse salary planning. Runs locally in your browser.Free New Zealand Net Salary CalculatorFree 2026–27 New Zealand net salary calculator with PAYE, ACC, KiwiSaver, IETC, student loan, ESCT, reverse salary and offer comparison. Runs locally in your browser.Free Ireland Net Salary CalculatorFree 2026 Ireland net salary calculator with Income Tax, USC, Class A PRSI, pension relief, joint assessment, reverse salary and job offer comparison. Runs locally in your browser.Free AI Resume Bullet GeneratorFormat supplied responsibilities and verified results into resume bullets locally. No accomplishments or metrics are invented.Free AI Resume GeneratorOrganize supplied career facts into a resume draft, source highlights and a skills checklist in your browser.Free AI Resume Summary GeneratorExtract a concise professional summary from the career facts you provide. Review it for relevance and accuracy.Free AI Resume Objective GeneratorDraft a targeted resume objective from your supplied background and target role, using a local template.Free AI Resume Skills GeneratorOrganize explicitly supplied skills, or review potential source keywords before adding them to your resume.Free AI Cover Letter GeneratorBuild an editable cover-letter draft from your verified background and target role. Local templates do not research companies.Free AI Job Description MatcherCompare extracted job-description keywords with supplied resume text. Lexical overlap is not an ATS or hiring prediction.Free AI ATS Keyword ExtractorExtract and count keywords from a supplied job description locally; review context and genuine requirements yourself.Free AI LinkedIn Headline GeneratorCreate editable LinkedIn headline combinations from your supplied role and skills, without inventing expertise.Free AI LinkedIn About GeneratorOrganize your supplied career evidence into a LinkedIn About draft and source highlights locally.Free AI Interview Question GeneratorBuild interview-practice prompts from your supplied skills and target role. These are local question templates.Free AI Interview Answer CoachPlan a STAR answer using supplied situation, task, action and outcome evidence. Missing details remain clearly marked.Free MinesweeperClear the field with guaranteed logic-only boards, fast chording, daily challenges, advanced tactical hints, performance metrics, local records and touch-first controls.Free Memory MatchYour cards are hidden while the game is paused.Free Word ScramblePlay a free Word Scramble game with 244 curated words, adaptive difficulty, daily themed puzzles, Word Rush, Zen mode and private practice tracking.Free Rock Paper ScissorsA polished, private and free Rock Paper Scissors game with cryptographically fair random play, a transparent adaptive pattern bot, private pass-and-play, strategy analytics and local stats.Free Mahjong SolitaireOne fixed five-layer Turtle 144 deal every UTC day. Finish today’s board to build your daily streak; clear it without assists for a perfect daily.Free Bubble ShooterA polished, free, privacy-friendly Bubble Shooter with bank shots, combos, daily challenge, Zen mode and no signup.Free Block PuzzleChoose any piece. Clear a row or column to build your combo.Free Word GuessOpen Word Guess and complete the task in your browser, free of charge.Free CrosswordOne Daily puzzle for everyone, generated from the same date seed.Free Word SearchDepending on difficulty, words can run left, right, up, down and diagonally — including reversed paths. Drag across letters or use keyboard selection.Free CheckersOpen Checkers and complete the task in your browser, free of charge.Free Temperature ConverterConvert Celsius, Fahrenheit, Kelvin, and Rankine instantly with physical-range validation and a four-scale comparison table.Free Area ConverterConvert land and surface area across metric and imperial units, including hectares, acres, square feet, and square miles.Free Volume ConverterConvert liters, cubic units, US customary, and Imperial liquid measures with the system differences kept explicit.Free Speed ConverterConvert speed between m/s, km/h, mph, ft/s, knots, and an explicitly approximate sea-level Mach reference.Free Data Storage ConverterConvert bits, bytes, decimal SI storage units, and binary IEC units without mixing MB with MiB.Free Time ConverterConvert durations from microseconds through weeks and 365-day common years with a transparent comparison table.Free Time Zone ConverterConvert an exact local date and time between IANA time zones with DST-aware offsets and multi-zone comparison.Free Unix Timestamp ConverterDecode Unix seconds or milliseconds, convert local dates back to epoch time, and compare ISO, UTC, local, and relative formats.Free World ClockBuild a personal live world-clock board with saved IANA zones, DST-aware offsets, and second-by-second updates.Free Countdown TimerRun a precise countdown with presets, repeat mode, fullscreen focus, Wake Lock support, labels, and a local alarm.Free StopwatchA precision, reload-resistant stopwatch with unlimited laps, editable labels, fastest/average/slowest analysis, interval chimes, fullscreen, Wake Lock, keyboard control, and CSV export.Free Roman Numeral ConverterConvert numbers and Roman numerals both ways with strict validation, large-number vinculum notation, clock-face mode, date conversion, batch conversion, breakdowns, and local history.Free Online Alarm ClockA powerful free online alarm clock with multiple alarms, repeat days, generated sounds, snooze, dismiss challenges, notifications, Wake Lock, backup and fullscreen bedside mode.Free Online ClockA customizable free online clock with digital, analog and flip displays, any IANA timezone, fullscreen presentation mode, Wake Lock, shareable setup links, burn-in protection and keyboard shortcuts.Free Current TimeSee the current time in any timezone with precise browser timing, UTC offset, Unix timestamps, ISO formats, timezone comparison, day progress, fullscreen and copy-ready formats.Free Today's DateA timezone-aware date reference with ISO week data, ordinal day, year progress, calendar context, copy-ready formats and quick arithmetic from today.Free CalendarA private browser calendar with month and year views, recurring events, ISO week numbers, notes, print, ICS export, JSON backup and local-only storage.Free Pomodoro TimerA free local-first Pomodoro timer with tasks, custom intervals, focus analytics, ambient sound, notifications, Wake Lock, fullscreen and CSV export.Free Interval TimerA free professional interval timer for HIIT, Tabata, EMOM, AMRAP, boxing and custom workouts with voice cues, presets, history, fullscreen and Wake Lock.Free Lap TimerA free multi-lane lap timer with split times, pace targets, best/average/consistency analytics, leaderboard, CSV export, fullscreen and reload recovery.Free Online NotepadA private local-first online notepad with multiple notes, Markdown preview, search, find and replace, version history, encryption, exports, backup and focus mode.Free To-Do ListA free local-first task manager with Smart Add, projects, priorities, recurring tasks, subtasks, filters, board and Eisenhower views, reminders, analytics and portable backup.Free Checklist MakerFree local-first checklist maker with reusable templates, sections, run history, progress tracking, print/PDF, sharing links and backup.Free Click CounterFree local-first multi click counter with targets, rate tracking, undo, history, keyboard shortcuts, fullscreen and export.Free Random Dice RollerFree secure random dice roller with advanced notation, keep/drop rules, exploding dice, custom dice, exact probabilities, favorites and history.Free Coin FlipFree cryptographically random coin flip studio with best-of games, multi-flips, probability lab, streaks, confidence intervals and CSV export.Free Secure Passphrase GeneratorFree local secure passphrase generator using cryptographic randomness, a 4096-word local bank, exact entropy math, bulk generation and zero secret storage.Free Pressure ConverterFree engineering pressure converter with Pa, kPa, MPa, bar, psi, atm, torr, mmHg, inHg, water column units, gauge/absolute conversion and altitude atmosphere estimates.Free Image CompressorCompress images locally in your browser with batch processing, target-size mode, WebP/JPEG/PNG output, resize limits, transparency protection, before/after preview and ZIP download.Free Image ResizerResize images in bulk locally with fit, fill, stretch, long-edge and percentage modes, popular presets, orientation-aware sizing, no-upscale protection, format conversion and before/after preview.Free Crop ImageCrop images locally with a precision interactive crop box, aspect presets, exact pixel controls, social presets, batch framing and export resizing.Free Rotate & Flip ImageRotate and flip images locally with arbitrary-angle straighten, 90-degree controls, horizontal/vertical mirroring, expand-or-keep canvas modes, batch transforms and format conversion.Free JPG to PNGConvert JPG and JPEG images to PNG locally in your browser with batch conversion, resizing, deterministic color-to-transparency, preview and ZIP download.Free PNG to JPGConvert PNG to JPG locally with batch processing, transparency-aware matte controls, target-size mode, resizing, before/after preview and ZIP download.Free WebP to JPGConvert WebP to JPG locally with strict validation, transparency-aware matte controls, quality and target-size modes, resizing, WebP inspection, batch conversion and ZIP download.Free WebP to PNGConvert WebP to PNG locally with strict validation, transparency preservation, optional transparent-border trim, resizing, WebP inspection, batch conversion and ZIP download.Free JPG to WebPConvert JPG to WebP locally with Smart Visual quality, target-size mode, PSNR quality guard, resizing, batch conversion and ZIP download.Free PNG to WebPConvert PNG to WebP locally with alpha preservation, Smart Visual quality, target-size mode, transparent-border trim, optional matte flattening, resizing and batch ZIP export.Free HEIC to JPGConvert HEIC and HEIF photos to JPG locally with modern libheif decoding, quality presets, target-size mode, resize controls, matte handling, container inspection and batch ZIP export.Free HEIC to PNGConvert HEIC and HEIF photos to PNG locally with modern libheif decoding, alpha preservation, optional transparent-border trim, resize controls, container inspection and batch ZIP export.Free Image to Base64Convert one image or a whole batch into exact Base64, Data URI, HTML, CSS, Markdown or JSON — locally in your browser.Free Base64 to ImageRecover the original image from Base64, data URIs, HTML, CSS or JSON. Inspect it, verify the real file type, and download the exact decoded bytes.Free Favicon GeneratorCreate a complete favicon and app icon package locally in your browser.Free Image Color PickerPick exact colors from images, inspect HEX/RGB/HSL/OKLCH/LAB, extract palettes, check contrast and export CSS — privately in your browser.Free Background RemoverRemove image backgrounds with private in-browser AI, refine the cutout, change backgrounds and export — free on OneFreePlace.Free Passport / ID Photo ResizerCrop, size, inspect and print passport or ID photos locally in your browser. Exact dimensions, head-size guides, quality checks and print sheets — free and private.Free Word CounterA private, live word counter with multilingual word segmentation, readability, keyword density, goals, selection stats and exports.Free Character CounterA private, advanced character counter with Unicode, grapheme, byte, SMS, invisible-character and normalization analysis.Free Case ConverterTransform writing, headlines, lists and developer identifiers without sending your text anywhere. Convert the whole document or only your selection, preview every style instantly, and keep Unicode text intact.Free Remove Duplicate LinesClean lists, logs, keywords, URLs and datasets without losing control. Keep the first or last occurrence, normalize only what you choose, inspect every duplicate group, and export a clean audit report—all locally in your browser.Free Text SorterSort lists the way people actually expect: language-aware alphabetics, natural filenames, versions, numbers, dates, lengths, columns, regex keys and repeatable shuffles — with a transparent key inspector so you can see exactly why each item moved.Free Text Compare / DiffSee exactly what changed between two versions — from a single character to thousands of lines. Review side-by-side, inspect every change, ignore noise, merge decisions, and export a clean patch or report.Free Random Number GeneratorGenerate a sample to see descriptive statistics. The histogram is a convenience check, not a certification of randomness.Free Random Name / Item PickerWeights are relative chances. A weight of 2 has twice the initial chance of a weight of 1. In no-repeat multi-winner draws, probabilities change after each winner is removed.Free Spin the WheelLocal save uses this browser only. Share links encode the wheel in the URL; nothing is uploaded.Free Password GeneratorOpen Password Generator and complete the task in your browser, free of charge.Free PDF to PowerPointPreview, include/exclude, rotate, then export.Free PDF to ExcelInspect detected tables and edit any cell before exporting.Free PDF to TextExtract clean, readable text from PDFs locally in your browser with smart reading order, column handling, cleanup, page selection and export tools.Free PDF to HTMLConvert PDF to clean, accessible HTML locally in your browser with semantic, visual-fidelity and hybrid modes, live preview, validation and export.Free HTML to PDFConvert HTML to PDF locally in your browser with live preview, smart page breaks, print preflight, direct visual PDF export, and native browser print for selectable text.Free Text to PDFWrite, style, paginate and export polished PDFs entirely in your browser. No account, no upload server, no watermark.Free JSON to YAMLConvert JSON to clean, type-safe YAML locally with exact number preservation, round-trip verification, batch conversion and no uploads.Free YAML to JSONConvert YAML to verified JSON locally with exact big integers, anchors and merge-key resolution, multi-document support, batch conversion and no uploads.Free JSON to CSVConvert JSON and JSON Lines to verified spreadsheet-ready CSV locally with nested flattening, exact number preservation, record auto-detection and formula protection.Free CSV to JSONConvert CSV, TSV and delimited files to verified JSON locally with smart safe typing, nested path reconstruction, batch export and exact long-ID protection.Free JSON to XMLConvert JSON and JSON Lines to verified XML locally with natural, attribute/text and lossless typed mapping profiles.Free XML to JSONFree private XML to JSON converter with namespace handling, attributes, exact big numbers, lossless XML infoset mode and batch conversion.Free JSON Schema GeneratorFree private JSON Schema generator with multi-sample inference, Draft 2020-12, exact large integers, coverage analysis and independent sample verification.Free JSON Schema ValidatorFree private JSON Schema validator with Draft 2020-12, 2019-09 and Draft-07, local reference packs, exact large integers, batch JSON/JSONL validation and detailed error inspection.Free YAML FormatterFree privacy-first YAML formatter with comment preservation, semantic verification, batch formatting and local processing.Free YAML ValidatorFree private YAML 1.2 validator with diagnostics, portability audit, batch validation and optional JSON Schema validation.Free SQL FormatterFree local SQL formatter with dialect-aware token protection, semantic guard, style profiles and batch formatting.Free SQL MinifierFree local SQL minifier with dialect-aware token protection, semantic comment handling, token guard, batch ZIP and no upload.Free HTML FormatterBeautify HTML without casually breaking inline text, protected blocks, template syntax or attributes. Format locally with a structural guard, diagnostics, batch ZIP and a sanitized preview.Free CSS FormatterFormat CSS, SCSS and Less locally with token-level preservation, nesting-aware layout, custom-property protection, duplicate-declaration auditing and a fail-closed semantic guard.Free JavaScript FormatterChoose multiple JavaScript/TypeScript files. Each file is parsed, formatted, structurally verified and second-pass checked independently before it is allowed into the ZIP.Free Markdown PreviewerMarkdown is parsed in this browser. The tool has no conversion endpoint and does not require an account. Draft recovery is opt-in and off by default.Free HTML Entity Encoder / DecoderSearch a character, entity name or Unicode code point.Free Unicode Escape / UnescapeInspector works at Unicode code-point level; grapheme count uses Intl.Segmenter when available.Free JavaScript Escape / UnescapeEscape and unescape JavaScript string literals locally with quote/template awareness, Unicode handling, script-tag safety and round-trip verification.Free JSON Escape / UnescapeJSON permits only \" \\ \/ \b \f \n \r \t \uXXXX. JavaScript-only forms such as \x41, \0, \v, \' and \u{1F600} are rejected. Generated output is decoded back through the strict JSON-string parser before Copy/Download is enabled.Free Hex Encoder / DecoderHex represents bytes, not characters. OneFreePlace keeps those layers separate: it parses bytes strictly, applies the encoding you chose, detects BOMs and binary signatures, and independently converts the result back before Copy/Download is enabled.Free Binary to Text ConverterDecode binary bitstreams into real text with strict encoding validation, bit-alignment recovery, byte-order repair and byte-for-byte verification.Free Text to Binary ConverterTurn Unicode text into real encoded bytes and inspect the exact bits, with normalization auditing, protocol transforms and reversible verification.Free Thesis Statement BuilderA private multilingual thesis statement builder with multiple thesis forms, argument diagnostics, scope checks, evidence readiness, revision tools and exports.Free Research Question GeneratorA private multilingual research question studio with FINER auditing, PICO/PEO/SPIDER frameworks, subquestions, feasibility checks, hypothesis scaffolds and exports.Free Topic GeneratorA private multilingual topic discovery studio for essays, research papers, presentations and projects with scope control, feasibility checks, source-fit guidance and exports.Free APA Citation GeneratorA private APA 7 citation and bibliography studio with source-specific forms, in-text citations, 21+ author handling, duplicate checks, BibTeX/RIS import and portable exports.Free MLA Citation GeneratorA private MLA 9 citation and Works Cited studio with core elements, containers, in-text citations, duplicate checks, BibTeX/RIS import and portable exports.Free Chicago Citation GeneratorA private Chicago 18 citation studio supporting Notes and Bibliography plus Author-Date, full and shortened notes, reference lists, imports, exports and multilingual metadata.Free Harvard Citation GeneratorA private Harvard citation studio with Cite Them Right 13th edition, Leeds Harvard, institution-neutral comparison, in-text citations, secondary citations, reference lists, imports and exports.Free IEEE Citation GeneratorA private IEEE citation studio with citation-order numbering, current IEEE reference rules, full/located in-text citations, 16 source types, import/export and multilingual metadata.Free Vancouver Citation GeneratorA private Vancouver / ICMJE / NLM citation studio with citation-order numbering, current medical-reference safeguards, Internet-source dates, NLM journal abbreviations, imports, exports and multilingual metadata.Free Bibliography FormatterA private bibliography formatter and reference-list doctor for APA, MLA, Chicago, Harvard, IEEE, Vancouver and custom lists. Split, clean, deduplicate, sort, audit, style and export references locally.Free DOI Citation LookupFree DOI metadata and citation lookup using public Crossref and DataCite metadata, with registry comparison, quality audit, citation drafts, batch lookup and local exports.Free Readability Score CalculatorFree private readability calculator with Flesch, Flesch-Kincaid, Gunning Fog, SMOG, Coleman-Liau, ARI, LIX, RIX, language-specific formulas, sentence diagnostics, syllable overrides and before/after comparison.Free Syllable CounterFree private syllable counter with word-by-word review, uncertainty flags, manual overrides, line rhythm analysis, multilingual heuristics, and exports.Free Grade CalculatorFree private grade calculator for weighted categories, points, final exam targets, what-if scenarios, custom grading scales, drop rules, and exports.Free GPA CalculatorFree private GPA calculator with course credits, custom scales, percentage or point inputs, cumulative GPA, target planning, retake simulation, what-if analysis and exports.Free CGPA CalculatorFree private CGPA calculator with semester credits, previous record, 4/5/10/custom scales, target CGPA planner, credit inertia, future projections, scenarios and exports.Free Weighted GPA CalculatorFree private weighted GPA calculator with Honors/AP/IB/Dual Enrollment bonuses, editable policies, caps, unweighted comparison, target planning, course impact and exports.Free High School GPA CalculatorFree private high school GPA calculator with grades 9-12, semester credits, Honors/AP/IB/Dual Enrollment weighting, unweighted and core GPA, year trends, future planning and exports.Free Final Grade CalculatorFree private final grade calculator with target score solving, detailed weighted coursework, letter-grade targets, exam points needed, feasibility, score maps, scenarios and exports.Free Test Score CalculatorFree private test score calculator and teacher grader with correct/wrong/blank answers, points mode, negative marking, partial credit, custom grading scales, score tables, class batch grading and exports.Free Marks Percentage CalculatorFree private marks percentage calculator with single-score reverse solving, multi-subject marksheets, unequal totals, best-of-N, pass rules, target planning, scenarios and exports.Free Letter Grade ConverterFree private letter grade converter between percentage, letter grade and GPA points with editable grading scales, reverse ranges, boundary explorer, batch conversion and exports.Free ECTS Grade ConverterFree private ECTS grade converter built around official grade-distribution-table comparison, with transparent percentile overlap, legacy A–E estimator and ECTS workload planning.Free Pinterest Image ResizerFree Pinterest image resizer with 2:3 Pin, square, long-Pin crop-risk, business cover, collections and ad presets, masonry feed preview, Pinterest light/dark background treatment simulation, focal-point cropping and batch ZIP export.Free X / Twitter Image ResizerFree X/Twitter image resizer with post, profile, header, link-card and current X Ads presets, header crop simulation, profile-circle preview, multi-image timeline crop preview, focal-point cropping, file-limit optimization and batch ZIP export.Free Threads Image ResizerFree Threads image resizer with 3:4 native portrait, 4:5, square, landscape, link and profile presets, focal-point cropping, 8 MB optimization, local batch ZIP export and a unique multi-panel panorama seam pack.Free Bluesky Image ResizerFree Bluesky image resizer with current 2,000,000-byte post limit, 4,000px dimension guard, profile/banner 1,000,000-byte limits, gallery preview, AT Protocol aspect-ratio metadata, focal cropping, exact byte optimizer and batch ZIP export.Free Instagram Post CropperFree Instagram post cropper with 3:4, 4:5, square and landscape crops, profile-grid survival preview, crop-loss meter, multi-image carousel harmonizer, exact focal controls, local ZIP export and no signup.Free Instagram Story CropperFree Instagram Story cropper with 9:16 export, multi-story sequence harmonizer, conservative safe-zone preview, crop-loss meter, focal-point controls, contact sheet and local ZIP export.Free YouTube Thumbnail MakerFree local YouTube thumbnail maker with 4K output, text and badge layers, logo upload, background grading, small-card preview, rule-of-thirds and timestamp pressure guides, A/B style recipes, mobile upload optimization and no signup.Free YouTube Banner MakerFree YouTube banner maker with 2560x1440 output, official safe-area overlay, device crop simulation, safe-lock positioning, logo upload, schedule text, file-limit optimization and local export.Free Facebook Cover MakerFree Facebook cover maker with high-resolution 1702x630 canvas, 851x315 standard export, desktop/mobile crop simulation, dual-viewport safe lock, logo upload, brand recipes, CTA badge and local processing.Free LinkedIn Banner MakerFree LinkedIn banner maker for personal profiles and 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