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JSON, Base64, UUID, hashing and dev tools
Format, beautify and validate JSON. Indent with 2 or 4 spaces and catch syntax errors.
Minify JSON by removing all unnecessary whitespace. Reduces file size for production.
Encode text to Base64 or decode Base64 back to text. Supports UTF-8.
Generate UUIDs across every version — v1 (time-based), v3 (MD5 namespaced), v4 (random), v5 (SHA-1 namespaced), v6 (reordered time) and v7 (timestamp-sortable).
Encode text for safe use in URLs or decode URL-encoded strings.
Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes from text input.
Generate a JSON Schema from sample JSON data. Infer types, formats, required fields and more.
Format and validate YAML. Detect syntax errors and format with proper indentation.
Decode and inspect JSON Web Tokens (JWT). View header, payload and signature separately.
Parse and validate cron expressions. See the next execution times and human-readable description.
Format, beautify and validate XML. Fix indentation and detect syntax errors.
Validate JSON syntax and pinpoint the exact line and position of any error.
Compare two JSON documents and see every added, removed, or changed value side by side.
Generate cryptographically secure passwords with custom length, character sets, and strength estimation.
Generate HMAC signatures (SHA-1/256/384/512) from a message and secret key using WebCrypto — nothing leaves your browser.