WTools – Free Developer & Web Utilities

JSON Formatter & Validator

Format, validate, structure, and minify raw JSON payloads with real-time tree view and syntax error highlighting.

JWT Debugger & Decoder

Decode JSON Web Tokens (JWT) headers, payloads, and signatures. Verify expiration claims and signature algorithms.

Hash Generator (MD5 / SHA256)

Calculate cryptographic checksums for text strings and binary files. Supports MD5, SHA-1, SHA-256, and SHA-512.

SQL Query Beautifier

Reformat unformatted SQL queries into clean, standard, readable SQL syntax. Supports MySQL, PostgreSQL, and SQLite.

Password & Secret Generator

Generate cryptographically secure random passwords and API secret keys with customizable rules and symbols.

Base64 Encoder & Decoder

Encode text or file binaries into standard Base64 format, or decode Base64 strings back into raw readable data.

Regex Tester & Visualizer

Test JavaScript, PHP, and Python Regular Expressions in real-time with regex match visualization and capture groups.

UUID v4 Batch Generator

Generate RFC4122 compliant Universally Unique Identifiers (UUID v4) individually or in bulk for database keys.

CSS Color & Gradient Generator

Convert HEX, RGB, HSL color codes and create modern CSS linear and radial background gradient snippets.

Powerful Web Developer Tools