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Encode and decode UTF-8 text, images, and files to Base64 and Data URIs 100% locally in your browser.
Generate and verify MD5, SHA-1, SHA-256, SHA-384, SHA-512 hashes and HMACs 100% locally in browser.
Format, minify, auto-repair, and validate JSON with line-by-line syntax error detection and TypeScript generator.
Test regular expressions with real-time match highlighting, capture group breakdown, and substitution preview.
Decode JSON Web Tokens, inspect header & payload claims, and verify signatures 100% privately in browser.
Generate bulk UUID v4 & time-ordered UUID v7, or inspect timestamps and versions from existing UUIDs.