onefreeplace
YOUR FREE WORKSPACE
Academic / Student Tools Grammar Checker
Tool 427 · Private grammar lab

Catch mistakes.
Keep your voice.

An explainable, browser-side grammar and style checker. Review each suggestion, apply only what you want, create house-style rules, and keep your writing on your device.

FreeNo accountLocal processingExplainable rules25 platform languages

Your draft

Suggestions appear as you type. Nothing is sent anywhere.

Ready
0 words0 sentences0 characters0 selected

Highlighted review

Editing score100
Issues0
Safe fixes0
Rules active0
Consistency checks do not assume one universal style. Language-aware rules follow the selected writing language; English spelling follows the dialect selector.
Turn any rule off if it does not fit your voice. Disabled rules stay disabled in this browser when local settings are available.
Create simple phrase rules for names, terminology, banned phrases, or preferred wording. These are deterministic local rules—not AI.

Rule breakdown

CategoryIssuesHigh confidence

The score is an editing heuristic based on issue density and confidence. It is not an academic grade and does not measure the quality, truth, or originality of the writing.

How it works: this standalone build supports all 25 OneFreePlace launch languages with Unicode-aware segmentation, script-aware mechanics, house style, and conservative language-specific checks. English has the deepest deterministic grammar set; other languages intentionally favor high-confidence local rules over risky rewrites. It deliberately avoids claiming AI-level semantic understanding. Use suggestions as editorial prompts, especially for medium- and low-confidence items.