Developer Tools
JSON formatters, JWT decoders, Base64 tools, UUID generators, and code helpers.
Available Developer Tools
13 toolsJSON Formatter & Validator
Format, validate, beautify, and minify raw JSON payloads with instant error line pointers.
JWT Decoder (JSON Web Token)
Decode JSON Web Token headers and payloads with expiration status checking.
Text & Code Diff Checker
Compare two blocks of code or text to highlight added, removed, and modified lines side-by-side.
Base64 Encoder & Decoder
Encode plain text to Base64 or decode Base64 strings with UTF-8 and URL-safe options.
Cron Expression Generator & Explainer
Build and translate standard 5-part cron schedules into human-readable English descriptions.
Cryptographic Hash Generator
Compute SHA-256, SHA-384, and SHA-512 cryptographic hashes using the Web Crypto API.
CSV to JSON Converter
Convert CSV spreadsheets and data rows into structured, formatted JSON objects.
JSON to CSV Converter
Convert structured JSON arrays of objects into clean, downloadable CSV tabular format.
Number Base Converter (Binary, Hex, Decimal, Octal, ASCII)
Convert numbers simultaneously between Binary (Base 2), Octal (Base 8), Decimal (Base 10), Hexadecimal (Base 16), and ASCII.
Regex Tester & Matcher
Test regular expressions against sample text with live match highlights and capture groups.
Unix Timestamp Converter
Convert Unix epoch timestamps (seconds & milliseconds) to human dates (UTC & Local) and vice versa.
URL Encoder & Decoder
Encode special characters into percent-encoded URL format or decode encoded URLs.
UUID / GUID v4 Generator
Generate cryptographically random RFC 4122 compliant version-4 UUID identifiers in batches.