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Delimiter Readability Checker
What it is
Delimiter Readability Checker is a free web tool for evaluating English text with Flesch Reading Ease, Flesch–Kincaid Grade, and Gunning Fog formulas. It displays sentence and syllable averages behind the scores, updates results automatically in the browser, and keeps entered text on the device rather than sending it to a server. A Load file control accepts text, and a Copy control copies results. The page suggests using it for public-facing copy, plain-English requirements, long articles, and draft rewrites. It also provides sentence analysis and clarity recommendations. No account is required. The formulas were calibrated on English prose, so scores for other languages are not meaningful. They assess sentence and word length rather than clarity, accuracy, or structure. Syllable counting is heuristic, meaning some words may be counted incorrectly. The site lists [email protected] for contact and notes that replies are not instant, with no response-time commitment.
For and against
For
- Three established readability formulas
- Analysis stays in the browser
- No account or paywall required
- Automatic results with sentence analysis
- Load and copy controls included
Against
- Scores are not meaningful for other languages
- Formulas do not measure clarity or accuracy
- Heuristic syllable counts can be wrong
- Support has no response-time commitment
The verdict
Delimiter Readability Checker offers quick, local scoring without an account. Treat its numbers as sentence and word-length indicators rather than complete judgments of writing quality.
Who it suits
This checker suits writers reviewing English copy for reading difficulty and sentence patterns. It is useful when browser-local processing and file loading matter.
Plans and prices
Free
No account required · no paywall
Read 4 Oct 2026 · delimiter.live
On the record
- Automatic results
- Results update automatically as text is analyzed on the device.delimiter.live · read 4 Oct 2026
- Copy results
- The tool provides a Copy control for results.delimiter.live · read 4 Oct 2026
- File input
- The tool includes a Load file control for text input.delimiter.live · read 4 Oct 2026
- Interpretation limit
- The formulas measure sentence and word length, not clarity, accuracy or structure.delimiter.live · read 4 Oct 2026
- Language limitation
- The formulas were calibrated on English prose, so scores for other languages are not meaningful.delimiter.live · read 4 Oct 2026
- Local processing
- Analysis runs in the browser and text entered is not sent to a server.delimiter.live · read 4 Oct 2026
- Pricing and account
- The tool is free and does not require an account.delimiter.live · read 4 Oct 2026
- Purpose
- Scores text with Flesch Reading Ease, Flesch–Kincaid Grade and Gunning Fog formulas.delimiter.live · read 4 Oct 2026
- Score context
- The tool shows sentence and syllable averages behind the scores.delimiter.live · read 4 Oct 2026
- Support
- The site lists [email protected] for contact and says replies are not instant, with no response-time commitment.delimiter.live · read 4 Oct 2026
- Supported use
- The page suggests using it to check public-facing copy, plain-English requirements, long articles and draft rewrites.delimiter.live · read 4 Oct 2026
- Syllable counting
- Syllable counting is heuristic and individual words may be counted incorrectly.delimiter.live · read 4 Oct 2026
