BonPatron
by BonPatron
What BonPatron is
BonPatron is a web-based French writing checker from BonPatron, whose maker was founded in 2001. It identifies misspelled words, grammar structures to verify, and structures to correct, then suggests corrections for the writer to apply. The service was initially designed for North American French learners and is also used by Francophones. It checks French only; related tools cover English and Spanish separately. BonPatron says its research suggests it catches approximately 82% of errors, but it cannot judge semantic acceptability and may miss errors that occur only once. The free checker allows approximately 500 words per submission. BonPatron Pro lists an English-French vocabulary tool, verb conjugator, resizable fullscreen editor, error summary, interactive grammar exercises, no advertising, and text archiving; subscriptions include SpellCheckPlus Pro. Texts are not stored by default, while subscribers may keep archives.
Who it suits
BonPatron suits French learners and Francophones who want spelling and grammar feedback while making their own corrections. It can also fit classrooms using the listed classroom license.
What it does well
- Checks French spelling and grammar
- Suggests corrections for writers
- Free checker plan available
- Pro includes vocabulary and conjugation tools
- Texts not stored by default
What to know first
- French only
- Free submissions limited to approximately 500 words
- May miss one-time errors
- Cannot judge semantic acceptability
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free BonPatron | No fee · free checker allows approximately 500 words per submission | Free |
| BonPatron Pro individual | one year license · No advertising · no submission length restriction · text archive · grammar exercises · error summary · English-French dictionary and verb conjugator | €1,299 a year |
| BonPatron Pro classroom | per classroom of up to 30 students · Classroom license · site licenses for computer labs or self-registration groups available by contacting the company | $299 |
As bonpatron.com lists them, read 11 Oct 2026. The maker's own page has the final word.
Verdict
BonPatron focuses on French writing feedback through flagged errors and suggested corrections. Its free checker is limited per submission, while Pro and classroom options add tools and features.
Facts from BonPatron's own pages
- Audience
- The site was initially designed for North American French-language learners and is also used by Francophones. · bonpatron.com, 11 Oct 2026
- Company
- The site identifies Nadaclair Language Technologies Inc. as the company behind BonPatron. · bonpatron.com, 11 Oct 2026
- Data handling
- The privacy notice says the company does not store subscriber financial information on its servers and does not share collected data with third parties. · bonpatron.com, 11 Oct 2026
- Desktop app
- No · bonpatron.com, 20 Sept 2026
- Detected errors
- It identifies misspelled words, structures to verify, and structures to correct. · bonpatron.com, 11 Oct 2026
- Error coverage
- The company says its research suggests BonPatron catches approximately 82% of errors. · bonpatron.com, 11 Oct 2026
- Founded
- The About page says the BonPatron team has helped students since 2001. · bonpatron.com, 11 Oct 2026
- Free plan
- Yes · bonpatron.com, 20 Sept 2026
- Integrations and tools
- BonPatron Pro includes an English-French vocabulary tool and verb conjugator, and its subscription includes access to SpellCheckPlus Pro. · pro.bonpatron.com, 11 Oct 2026
- Languages supported
- 1 · bonpatron.com, 20 Sept 2026
- Language support
- BonPatron checks French text only; the FAQ points to separate related tools for English and Spanish. · bonpatron.com, 11 Oct 2026
- Learning approach
- It flags errors and suggests corrections for the user to make, supporting a process-writing approach. · bonpatron.com, 11 Oct 2026
- Limitations
- BonPatron cannot evaluate the semantic acceptability of submitted text and may not flag one-time errors. · bonpatron.com, 11 Oct 2026
- Privacy
- The privacy notice says submitted texts are not stored by default, while subscribers can choose to keep a text archive. · bonpatron.com, 11 Oct 2026
- Purpose
- BonPatron is an online French writing tool that identifies spelling errors and common grammatical problems. · pro.bonpatron.com, 11 Oct 2026
- Style suggestions
- Yes · bonpatron.com, 20 Sept 2026
- Support
- Users can contact the company at [email protected] with privacy complaints or questions. · bonpatron.com, 11 Oct 2026
Where BonPatron stands on Freedom251
- Grammar checkers#76 of 88