Free Developer Tools: JSON Formatter & More

Format and parse JSON, XML, SQL, GraphQL, TOML

• JSON Formatter
• JSONPath Query
• XML Formatter

Encode and decode Base64, URL, HTML, Unicode, Binary

• Base64 Encoder/Decoder
• URL Encoder/Decoder
• HTML Entities

Convert between formats, cases, timestamps, and colors

• JSON/YAML Converter
• CSV/JSON Converter
• Timestamp Converter

Generate UUIDs, passwords, hashes, QR codes, and more

• UUID Generator
• Lorem Ipsum
• Hash Generator

Generate schemas, types, and convert code between languages

• JSON Schema Generator
• SQL to NoSQL Translator
• JSON to Zod Schema

Text manipulation, diff checking, regex testing, and analysis

• Diff Checker
• Regex Tester
• Word Counter

Minify CSS/JS/HTML, work with SVG, and create placeholders

• Color Picker
• CSS Minifier
• JavaScript Minifier

Test APIs, parse headers, work with cURL and OpenAPI

• User Agent Parser
• Request Header Parser
• HTTP Request Builder

SQL query building and database validation tools

• SQL Query Builder
• MongoDB ObjectId Generator

JWT, OAuth, CORS, CSP, SSL certificates, and password tools

• JWT Decoder
• Password Hasher
• SSL Certificate Decoder

CIDR calculators, subnet tools, IPv6, and DNS utilities

• IP Address Information
• CIDR Calculator
• Subnet Calculator

Docker, Git, Cron, environment files, and configuration tools

• Cron Expression Parser
• Git Branch Name Generator
• Semantic Version Comparator

Parse logs, format stack traces, and debugging utilities

• Log Formatter
• Stack Trace Formatter

Format prompts for large language models and AI tools

• Prompt Formatter
• LLM Token/Cost Estimator + Output Validator

HTTP status codes, MIME types, and port lookups

• Port Lookup
• HTTP Status Code Reference
• MIME Type Lookup