Free Online Text Tools
Count characters and words, compare documents, convert case, sort lines, and reverse text. All 8 tools run client-side so your text stays private.
Why Use Online Text Tools?
Writers, developers, marketers, and students constantly need quick answers about text: how long is it, what changed between two versions, and how should it be formatted. Opening a heavyweight editor for these jobs is overkill.
Our text tools run entirely in your browser — nothing is uploaded to a server. Paste, transform, and copy the result in seconds, whether you are checking a tweet length, deduplicating a word list, or diffing two configuration files.
Common Use Cases
- check_circleCheck character limits for tweets, meta descriptions, and ad copy
- check_circleCount words and estimate reading time for articles and essays
- check_circleCompare two versions of a document or config file line by line
- check_circleConvert headings to Title Case or identifiers to camelCase and snake_case
- check_circleSort and deduplicate lists of emails, keywords, or log entries
- check_circleReverse strings when debugging encoding or palindrome logic
Frequently Asked Questions
Is my text uploaded to a server?
No. Every text tool on OpenFormatter runs 100% client-side in your browser. Your text never leaves your device, so it is safe for confidential content.
Do the counters handle Unicode and emoji?
Yes. The character and word counters are Unicode-aware, so accented characters, CJK text, and emoji are counted correctly rather than as raw bytes.
What is the difference between Text Diff and Text Compare?
Text Diff highlights line-by-line changes between two inputs, while Text Compare gives a side-by-side similarity view. Use Diff for code and configs, Compare for prose.
Can I sort a list and remove duplicates at the same time?
Yes. The Text Sorter can sort lines alphabetically or numerically, remove duplicate lines, trim whitespace, and reverse the order in one pass.
Developer Insights
From the Blog
The Case for 100% Client-Side Data Processing
Why we built OpenFormatter to process all data locally, and what that means for your workflow security.
URL Slug Best Practices for SEO in 2026
A complete guide to SEO-friendly URL slugs — length, keywords, stop words, hyphens vs underscores, trailing slashes, and slug change strategy.
When to Escape vs Encode — A Developer's Guide
Escape, encode, encrypt — they sound similar but solve different problems. When to use HTML escape, URL encode, Base64, and encryption.