10 production utilities. 100% local — runs entirely in your browser.
Begin with a guided workflow.
Encode and decode Base64 string formats, URL-safe variants, Hex data, and binary files with UTF-8 support.
Generate SHA-256, SHA-512, SHA-1, and MD5 cryptographic message digests in real-time.
Encode special characters into Named, Decimal, or Hex HTML entities and decode entities back to plain text with safe sandboxed preview.
Format, minify, and validate JSON payloads with syntax error detection.
Decode and inspect JSON Web Token (JWT) headers, payloads, and claims locally in your browser.
Test, validate, and debug regular expressions with real-time pattern matching.
Generate cryptographically secure passwords and secret keys with entropy verification.
Convert Unix epoch timestamps to ISO 8601, UTC, and local date strings instantly.
Encode and decode URI query parameters, full URLs, form-urlencoded data, and inspect URL components with an interactive query table.
Generate cryptographically secure random and time-ordered unique identifiers.