All Developer Tools
Browse all free developer utilities available on DevToolPlace.
JSON to TOON Converter
Convert JSON into compact TOON-style notation for AI prompts, then convert TOON back to JSON.
API Response Formatter
Beautify and analyze REST API JSON responses instantly.
Base64 Encoder
Convert text, JSON and API values into Base64 encoding instantly.
Base64 Decoder
Decode Base64 strings into readable text for API debugging and development.
URL Encoder / Decoder
Encode and decode URLs, query strings and special characters for web development.
Unix Timestamp Converter
Convert Unix timestamps, UTC dates and local times for logs, APIs and databases.
Color Converter
Convert HEX colors into RGB values for CSS and UI work.
XML Formatter
Beautify messy XML into readable, indented output.
Random Number Generator
Generate a random integer instantly for testing and mock data workflows.
Password Generator
Create strong random passwords with custom security options.
UUID Generator
Generate secure UUID v4 identifiers for APIs, databases and test data.
Slug Generator
Create clean SEO-friendly URL slugs from any title or phrase.
Lorem Ipsum Generator
Generate placeholder text for layouts, mockups and content testing.
HTML Formatter
Clean and format messy HTML code instantly.
HTML Viewer
Run and preview HTML code online.
HTML Entity Decoder
Decode escaped HTML entities back into readable text.
HTML Entity Encoder
Encode special characters into safe HTML entities.
JSON to CSV Converter
Convert JSON arrays of objects into clean CSV output for spreadsheets and reports.
JSON to TypeScript Interface
Generate a starter TypeScript interface from JSON data for frontend development.
JSON to XML Converter
Convert JSON objects and arrays into XML output for integrations and testing.
JSON Formatter
Format, beautify, validate, sort and minify JSON instantly for API debugging and development.
JSON Validator
Validate JSON data online and find syntax issues before they break your API or application.
CSS Minifier
Compress CSS code into smaller production-ready output.
JavaScript Minifier
Compress JavaScript snippets into smaller output.
Hash Generator
Generate hash values for text using common hashing algorithms.
JWT Toolkit
Decode, verify, generate and analyze JSON Web Tokens online.
Regex Tester
Test regular expressions against sample text and inspect matches instantly.
Text Case Converter
Convert text into common writing and developer naming cases.
XML Validator
Validate XML syntax and find parsing errors quickly.