Developer

Free developer tools — format JSON, encode Base64, generate UUIDs, hash strings, test APIs, and more. No login, no install. All 70+ tools run in your browser.

18 tools

Code & Dev

(8)

JSON Formatter

Format, validate, and beautify JSON data

XML Formatter

Format, beautify, and validate XML documents

YAML Formatter

Format, beautify, and validate YAML files

SQL Formatter

Format and beautify SQL queries

Diff Checker

Compare two texts and find differences

Cron Generator

Generate and explain cron expressions

Markdown Editor

Write and preview Markdown with live preview

Regex Tester

Test and debug regular expressions with live matching and highlighting

Encoding

(3)

Encoding Suite

Base64, URL, HTML entities, and more encodings in one tool

Base64 Encoder/Decoder

Encode text to Base64 or decode Base64 strings instantly

JWT Encoder/Decoder

Create, decode, and inspect JSON Web Tokens (JWT) instantly

Hash

(1)

Hash Suite

Generate MD5, SHA-1, SHA-256, SHA-512, and HMAC hashes

Generators

(4)

UUID Generator

Generate unique UUIDs (v4) instantly with bulk generation and validation

Lorem Ipsum Generator

Generate placeholder text for design and development

Password Generator

Generate secure random passwords with customizable options

Passphrase Generator

Generate memorable, secure passphrases using random words

CSS Tools

(1)

CSS Generators

Generate CSS for shadows, flexbox, grid, and unit conversions

API Tools

(1)

OpenAPI / Swagger Validator

Validate and inspect OpenAPI and Swagger specifications