Grammalecte vs Writefull
Grammalecte
grammalecte.netWritefull
writefull.comSide by side
| Figure | Grammalecte | Writefull |
|---|---|---|
| Price from | Free | $12.50/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | Yes | — |
| Web | — | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | — |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 2 | 7 |
| Spec score · AI Grammar Checkers | 9.0 (#3) | 8.6 (#13) |
| Browser extension | Yes | Yes |
| Data handling | The FAQ says Grammalecte collects no data, analyzes writing on the user's computer, and transmits no text. | Writefull says it does not store users’ text or use text or interactions to train its AI, and it does not sell data to third parties. |
| Free plan | Yes | Yes |
| Licence | The public source repository identifies Grammalecte as GPL-3.0 licensed. | The service is proprietary and governed by terms that restrict use to personal non-commercial purposes and protect its content by copyright. |
| Purpose | Grammalecte is an open-source grammar and typography checker dedicated to French. | Writefull provides AI language feedback, writing widgets, and data insights for research writing. |
| Support | The maker directs Writer users to LibreOffice or OpenOffice help forums and Firefox or Thunderbird users to the Mozfr forum. | Writefull directs users to its FAQs, Help Center, and contact form for assistance. |
| What it does | Grammalecte is an open-source French grammar and typography checker for LibreOffice, OpenOffice, Firefox, Thunderbird and related software. | Writefull provides AI language feedback and writing assistance aimed at academic and research writing. |
| Writing tools | Its text formatter can fix recurring errors and restructure text, and its conjugator covers about 8,000 verbs. | Writefull offers paraphrasing, style changes, sentence splitting and joining, summaries, explanations, and title and abstract generation. |
Plans
Writefull
- FreeFree
- FreeFree
- Premium$150 a year
- Premium$150 a year
- Group$285 a year
- Group$285 a year
- InstitutionPriced on request
In their own words
Grammalecte
Grammalecte is free, GPL 3 open-source software for checking French grammar and typography. It detects punctuation, spacing, typography, repeated words, hyphenation, capitalization, agreement, conjugation, confusions, and pleonasms. Users can enable or disable error categories and choose Classic, 1990 Reform, or All Variants spelling dictionaries, with Classic selected by default. Suggestions use several mechanisms, and an OCR option can detect errors in text produced by optical character recognition. A formatter addresses recurring errors and restructures text; its conjugator covers about 8,000 verbs. Grammalecte is available as a desktop app and browser extension on Linux, macOS, and Windows. Listed integrations include LibreOffice or OpenOffice, Firefox, Thunderbird, a command-line interface, server, and Python package. The FAQ says writing is analyzed locally, with no data collected or text transmitted. The maker says the checker does not perform semantic analysis, can miss mistakes, and may produce false positives. There is currently no version compatible with Chrome’s new extension API.
Writefull
Writefull provides AI language feedback, writing tools, and data insights for research writing. Its language models are trained on academic texts and suggest improvements to grammar, word use, style, and phrasing. Other tools can paraphrase, change style, split or join sentences, summarize or explain text, and generate titles and abstracts. Writefull integrates with Overleaf, offering LaTeX-tailored feedback, TeXGPT, and table and equation generators. Its Microsoft Word add-in works with Windows, Mac, and Word Online. The service is available on the web, Windows, macOS, and as a browser extension. The Overleaf extension supports Chrome, Chromium, and Brave; Writefull Revise supports Chrome, Firefox, Safari, and Chromium-based Edge. Revise returns edits through Track Changes and is limited to publishers and institutions. A free plan has limited quotas for language editing and rewriting. Writefull says it does not store users’ text, use text or interactions to train its AI, or sell data to third parties. Some features use third-party APIs, with user consent requested before text is sent.