Tools
A collection of handy developer and puzzle tools.
Regex Tester
Test and debug regular expressions with real-time matching and highlighting.
Cron Explainer
Decode cron expressions into plain English and see upcoming run times.
Decoder (Base64/JWT)
Encode and decode Base64 strings, and inspect JWT token payloads.
QR Code Generator
Generate QR codes from any text or URL, ready to download.
Sudoku Solver
Enter a Sudoku puzzle and get the solution instantly.
Wordle Helper
Find possible Wordle words based on your guesses and clues.
Nonogram Solver
Solve nonogram (picross) puzzles by entering row and column clues.