Text Tools
Free online text tools for developers. Compare text, test regex patterns, convert case, sort lines, and more. All processing happens in your browser - your data never leaves your device.
String Length Calculator
Count characters, bytes, words, lines, and paragraphs
Text Reverser
Reverse text by characters, words, or lines
Text Repeater
Repeat text multiple times with custom separator
Remove Duplicate Lines
Remove duplicate lines from text
Remove Empty Lines
Remove blank lines from text
Regex Tester
Test regular expressions with real-time highlighting
Diff Checker
Compare two texts and see the differences
Word Counter
Count words, characters, sentences, and more
Case Converter
Convert between camelCase, snake_case, kebab-case, and more
Line Sorter
Sort lines, remove duplicates, and clean up text
Text Extractor
Extract emails, URLs, phone numbers from text
AI Text Cleaner
Remove AI formatting artifacts and invisible characters
Prompt Diff
Compare two prompts and highlight the differences
Why Use Our Text Tools?
Working with text is a daily task for developers. Our free text tools help you compare files, test regex patterns, convert between naming conventions, sort and deduplicate lines, and extract patterns from text.
100% Private: Unlike other online tools, your text never leaves your browser. All processing happens locally using JavaScript, so you can safely work with sensitive content without privacy concerns.
No Limits: Process as much text as you want, as often as you need. No sign-ups, no usage caps, no premium tiers.