Fast, private developer string tools
Free online string and text tools for developers. Prefix, suffix, trim, sort, dedupe, encode — 100% in your browser, no login, no tracking.
No login · No tracking · Runs entirely in your browser
Popular tools
Pick a tool to get started. Everything is free and unlimited.
Add Prefix to Lines
Prepend text to every line. Perfect for SQL inserts, JSON arrays, comment headers.
Remove Extra Spaces
Collapse runs of spaces, tabs, and blank lines. Trim trailing whitespace.
Sort Lines
Sort lines alphabetically, numerically, by length, or reverse.
Remove Duplicate Lines
Strip repeated lines. Optionally case-insensitive and trim-aware.
Find and Replace
Plain text or regex. Case-insensitive, global, multiline flags.
Word & Character Counter
Count words, characters, sentences, and reading time as you type.
100% client-side
Your text never leaves the browser. No servers process your data.
Keyboard-friendly
Tab between fields, paste from clipboard, copy results with one click.
Free forever
No login, no signup, no quotas. Just open and use.