Essential Developer Utilities
Accelerate your workflow with precision tools for data formatting, validation, and transformation. Built for developers who value privacy and speed.
Development Toolkit
12 practical tools focused on debugging, API workflows, security, and data transformation.
cURL Converter
Convert cURL commands into Fetch, Axios, and Python snippets.
Hash Generator
Generate SHA hashes for text or files using Web Crypto APIs.
JSON Diff Checker
Compare two JSON payloads and inspect exact field-level changes.
JSON Formatter
Prettify, validate, and minify your JSON data instantly.
JWT Decoder
Decode, verify and inspect JSON Web Tokens securely.
RegExp Tester
Test and debug Regular Expressions with live highlighting.
Timestamp Converter
Convert Unix seconds, milliseconds, and date strings instantly.
Base64 Converter
Encode and decode strings to and from Base64 format.
Bcrypt Generator
Generate and verify Bcrypt password hashes securely.
Cron Generator
Generate, parse and explain cron expression schedules.
URL Encoder
Encode and decode URLs or URI components instantly.
UUID Generator
Generate secure v4 UUIDs in bulk effortlessly.
Guides that turn debugging questions into shortcuts
JSON Formatter Online: How to Validate, Pretty-Print, and Fix Parse Errors
A practical guide to formatting JSON, spotting syntax mistakes, and understanding why JSON.parse fails.
cURL to Fetch Converter: Turn API Examples into Browser Code
Use cURL as a source of truth, then translate it into Fetch-ready JavaScript for browser apps and modern tooling.
JWT Decoder: Read Header and Payload Without Verifying the Signature
Learn what a JWT contains, why it is Base64URL-encoded, and when decoding is not the same as verifying.
Unix Timestamp Converter: Seconds, Milliseconds, and Time Zones
Convert Unix time to a readable date or turn a date string back into epoch seconds and milliseconds.