Free Online Tool

Online Developer Tools. Base64, URL Encoder, UUID Generator

Common encoding, UUID, SHA-256 and schema helpers in one browser-based toolkit.

Choose an Online Developer Tool Below

Input

Output

Input

Output

Click generate to create a UUID v4

Input

Output

JSON Input

Generated Schema

Text to hash

SHA-256 digest

Browser-Based Developer Utilities

The Base64, URL and HTML helpers make reversible encoding tasks quick to inspect. UUID generation uses the browser cryptography API when available, while the JSON Schema helper infers a starter schema from a valid JSON example.

Know what each tool is for

Base64 is an encoding, not encryption. URL encoding is intended for URL components. A UUID is an identifier, not an authentication token. SHA-style hashing and password storage are separate security topics and should use purpose-built server-side controls.