JSON Formatter & Validator
Paste JSON to format it with indentation, validate syntax, and highlight errors.
Base64 Encoder
Encode any text string to Base64 format. Useful for data encoding, email attachments, and APIs.
Base64 Decoder
Decode a Base64-encoded string back to plain text.
URL Encoder
Percent-encode a string so it can be safely used in a URL query parameter.
URL Decoder
Decode a percent-encoded URL string back to human-readable text.
Regular Expression (Regex) Tester
Test regex patterns against text. See all matches highlighted with their positions.
Secure Password Generator
Generate strong, random passwords using cryptographically secure randomness.
UUID v4 Generator
Generate universally unique identifiers (UUID v4) using cryptographically secure random values.
Hash Generator
Generate SHA-1, SHA-256, or SHA-512 cryptographic hashes from any text input.
JWT Decoder
Decode and inspect a JSON Web Token (JWT) — header, payload, and expiry. Does not verify signature.
QR Code Generator
Generate a QR code from any text, URL, phone number, or email address. Download as PNG.
My IP Address
Find your current public IP address.