Readability.ch
Readability.ch: A private, free browser tool for scoring text clarity across five readability formulas. Ranked #15 of 25 in Readability Checkers by our editors (7.1/10); pricing: Free plan; best for private offline browser-based checking.
At a glance
- Editor score7.1 / 10
- PricingFree plan
- Best forPrivate offline browser-based checking
- Free planYes
- Paid fromFree
- Facts checked20 Sep 2026
Where it wins
- Calculates five established readability scores in one place
- Shows word, sentence, syllable, and unique-word statistics
- Processes text locally and supports offline use after loading
Where it doesn't
- Web-only, with no broader writing workflow
- URL sharing is limited to short text analyses
- Readability scoring may not replace detailed editorial review
Our verdict on Readability.ch
Readability.ch is a free, browser-based checker for editors, copywriters, translators, and others assessing text clarity. It analyzes text with Flesch Reading Ease, Flesch-Kincaid Grade Level, Gunning Fog, SMOG, and LIX Readability Index scores. Alongside the scores, it provides statistics for words, sentences, syllables, and unique words, plus sentence-level readability coloring. The tool also includes writing guidance on sentence length, word choice, active voice, jargon, paragraph structure, and filler words, with support for multilingual text and multiple interface languages.
Privacy and access are central strengths. Processing occurs locally in the browser, and the published feature set supports offline use after the page has loaded. That makes Readability.ch a practical choice for checking private drafts without sending text to a remote processing service. Sentence coloring adds a quick way to identify variation in difficulty across a passage, while the five formulas offer more context than relying on a single score. URL-based sharing is available for short text analyses when collaboration or review requires a shareable result.
The tradeoff is focus. Readability.ch is web-only and centers on measurement, statistics, coloring, and general writing tips rather than a wider editorial workflow. It suits users who want a free, private readability check with several scoring methods and straightforward multilingual access. Teams looking for broader collaboration, extensive integrations, or a more comprehensive writing environment should choose a tool built around those needs instead. For individual clarity checks and lightweight editorial review, its narrow scope keeps the core task easy to understand.
Your product? Our editors can test Readability.ch in depth and publish a review, labelled as paid · from $149/mo →
Readability.ch pricing
Readability.ch fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Readability formulas | Not verified |
| Sentence analysis | Yes |
| Clarity recommendations | Yes |
| Browser extension | Not verified |
| API access | Not verified |
| Language support | Multilingual |
| Deployment | Cloud |
| Platforms | Web |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Free plan |
| Website | readability.ch |
| Facts checked | 20 Sep 2026 |
Alternatives to Readability.ch
- Eclipse Readability StudioA free, open-source desktop checker for detailed multilingual document analysis.9.4
- ReadableA deep web and document readability checker for professional content teams.9.2
- Check ReadabilityA free browser checker combining nine formulas with practical clarity guidance.9.0
See all Readability.ch alternatives →
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Featured on iTechGuides
Readability.ch is listed in our Readability Checkers directory. Add the badge to your site — it links back to this page.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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