Cordial vs Harper
Cordial
cordial.fr
Harper
writewithharper.comSide by side
| Figure | Cordial | Harper |
|---|---|---|
| Price from | €0.67/mo | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | Yes |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| API | — | Yes |
| Plans published | 8 | 2 |
| Spec score · Grammar checkers | 9.4 (#2) | 8.9 (#19) |
| Browser extension | Yes | Yes |
| Desktop app | Yes | Yes |
| Free plan | Yes | Yes |
| Integrations | Official pages list Outlook, Gmail, Chrome, Edge, Teams, Word, LinkedIn, Facebook, WhatsApp and X/Twitter integrations. | The maker lists browser and editor extensions, a language server, a JavaScript library, a Rust crate, and native apps. |
| Maker size | LinkedIn lists Synapse Développement as a privately held software company with 11–50 employees. | LinkedIn lists Automattic in the 1,001–5,000 employee size range and says it has more than 1,730 employees across 92 countries. |
| Privacy | Cordial’s privacy policy says text submitted for correction through its correction tools is not stored on its servers. | Checks run locally; the maker says Harper has no cloud round-trips, telemetry, or LLM in the loop. |
| Rating on Chrome Web Store | 4.6 out of 5 from 19 ratings. | 4.2 out of 5 from 128 ratings |
| Style suggestions | Yes | Yes |
| Support | The site lists support by phone at 05 61 63 02 85 and email at [email protected]. | The maker directs users to Discord or GitHub discussions for questions. |
| System requirements | The desktop product supports 32-bit and 64-bit Windows 7, 8, 8.1, 10 and 11; Windows 7 is minimum and Windows 10+ recommended. | The maker says Harper needs no GPU or special additional memory; the desktop application currently supports macOS 14 or later. |
| What it does | Cordial is an AI-assisted French spelling, grammar, style and rewriting tool for professional writing. | Harper is an English grammar checker that detects spelling, capitalization, phrasing and grammar problems locally on the device. |
Plans
Cordial
- Version gratuite en ligneFree
- Cordial Web particulier€4.90 a month
- Individuel€6 a month
- Entreprises€8 a year
- Entreprises multilicence€8 a month
- Cordial Windows licence€79, paid once
- Individuel annuel€86 a year
- Individuel€686 a year
In their own words
Harper
Harper is a free, open-source grammar checker that flags capitalization, spelling, awkward phrasing, and grammar errors. The maker says checks run locally, with no cloud round-trips, telemetry, or LLM in the loop, and that suggestions appear in under 10 ms. Harper is available through browser and editor extensions, a language server, a JavaScript library, a Rust crate, and native apps. Listed integrations include Chrome, Brave, Edge, Firefox, VS Code, Cursor, Obsidian, WordPress, Neovim, Zed, Helix, Emacs, and Sublime Text. Its language support covers English and British, American, Canadian, Australian, and Indian English dialects. Harper Desktop lets users toggle rules, add dictionary entries, select a dialect, and turn checking on or off per app. The desktop app is labeled beta for macOS 14 or later, and the Windows desktop app is also described as a beta; its binary was not signed at the time of the listed post. Harper is free, with no account or credit card required.