Free Developer Tools

JSON Formatter

Format and beautify JSON.

JSON Validator

Validate whether a string is valid JSON.

Base64 Encoder / Decoder

Encode or decode Base64 strings.

JWT Decoder

Decode and inspect JWT payloads.

UUID Generator

Generate random UUIDs.

Password Generator

Generate strong random passwords.

Timestamp Converter

Convert Unix timestamps to dates.

JSON Minifier

Compress JSON by removing whitespace.

JSON Beautifier

Pretty-print JSON with configurable indentation.

JSON to CSV

Convert JSON arrays to CSV format.

CSV to JSON

Convert CSV data to JSON arrays.

JSON Diff

Compare two JSON strings and show differences.

URL Encoder / Decoder

Encode or decode URL components.

HTML Encoder / Decoder

Encode or decode HTML entities.

Hash Generator

Generate SHA-256, SHA-384, SHA-512 hashes.

Regex Tester

Test regular expressions with highlighting.

Color Converter

Convert between HEX, RGB, and HSL.