Text Tidy is a collection of free text tools and writing guides for students, writers, marketers, developers and anyone who works with words. Text Tidy is built and maintained by a small independent team that cares about clear writing and simple, private software.
What you'll find here
- Writing tools: word, character, sentence and paragraph counters, a grammar checker and a readability checker.
- Converters: uppercase, lowercase, title case and sentence case, plus a text cleaner.
- Comparison tools: a text difference checker and Compare Two Lists.
- Guides: practical articles on word counts, sentence and paragraph length, grammar, capitalization and character limits.
How we build and check our tools
Every tool is written from scratch for this site. We test each one against hand-counted examples and tricky cases, such as abbreviations like “Dr.” and “e.g.” that shouldn't end a sentence, emoji that should count as one character, and acronyms that should keep their capitals. Readability scores use the published formulas (Flesch, Flesch-Kincaid, Gunning Fog, SMOG, Coleman-Liau and ARI), and the text difference checker uses the Myers diff algorithm, the same approach used by Git. Each tool page explains exactly how it counts or converts, so you know what the numbers mean.
How we write our guides
Our guides draw on established style guides (AP, Chicago, APA, MLA and government plain-language guidance) and on platforms' own published limits. We date every guide, check facts that change over time, such as social media character limits, and update the guide when they change. If you spot an error, please tell us and we'll fix it.
Our principles
- Private: almost every tool runs entirely in your browser, so your text never leaves your device. The grammar checker is the one exception, and it says so clearly.
- Fast and simple: results update as you type, with no sign-up and no limits.
- Honest: the site is funded by advertising. Ads are kept clearly separate from the tools, and we never sell your data.
Keeping it up to date
We add new tools and guides regularly. See What's new for recent changes.
Questions, ideas or bug reports? Contact us. We read every message.