Interactive Directory
Loading dedicated in-browser sandbox. Zero server uploads, 100% private memory processing.
Initializing in-memory client sandbox. Zero files touch any external server.
Test regular expressions with real-time match highlighting, group capturing, and common regex cheatsheets.
Follow these simple steps to process your files securely in browser memory.
Enter your regex pattern and toggle flags (g, i, m, s, u).
Paste your sample strings into the test area. Matches highlight in real time.
Review match counts, character indexes, and captured groups table.
Designed for professionals seeking fast, private, and unlimited client-side execution.
Visually distinguish group 1, 2, and 3.
1-click email, IP, and URL patterns.
Beautify, validate, fix, and explore complex JSON data with error highlights and collapsible views.
Encode and decode strings, images, and binary files to and from Base64 with UTF-8 and URL-safe modes.
Generate SHA-256, SHA-512, MD5, and SHA-1 hashes with instant verification and checksums.