Simple tools. Useful results.
Free online tools for developers
Format data, convert timestamps, encode text, and generate IDs without an account. Your input stays in your browser whenever possible.
First collection
Tools in development
Browse by category
JSON Tools
Format, validate, inspect, and transform JSON data.
Date & Time
Convert timestamps, time zones, and cron expressions.
Encoding Tools
Encode and decode Base64, URLs, tokens, and text.
Generators
Generate secure IDs, passwords, hashes, and test data.
Text Tools
Compare, count, clean, and transform text.
Our principles
Built to get out of your way
Private by default
Browser-based tools process your input locally whenever possible.
No account required
Open a tool and finish the task without creating another login.
Clear and focused
Each page is designed around one job with useful examples.
Free to use
Core single-use utilities remain freely available.