Utilities Tools
General-purpose developer utilities
9 free tools — no signup required
Regex Tester
Test regular expressions with real-time matching and highlighting.
UUID Generator
Generate random UUIDs (v4) in bulk with one click.
Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa.
YAML Formatter & Validator
Format, validate, and convert YAML with error reporting.
Cron Expression Generator
Build and validate cron expressions with a visual schedule builder.
Number Base Converter
Convert numbers between binary, decimal, hexadecimal, and octal formats.
cURL to Code Converter
Convert cURL commands to JavaScript, Python, Go, PHP, and other languages.
API Tester
Make HTTP requests, test REST endpoints, and view responses with this lightweight API testing tool.
Mock Data Generator
Generate realistic mock data in JSON, CSV, and SQL formats for testing and development.
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About Our Utilities Tools
DevKit offers 9 free Utilities tools that run entirely in your browser. All tools are general-purpose developer utilities Each tool processes your data client-side — nothing is ever sent to a server.
Whether you're debugging, developing, or just need a quick conversion, our Utilities tools are designed to be fast, reliable, and completely private. No accounts, no tracking, no data collection. Just open and use.