Developer & DevOps Utilities
High-performance developer tools for web development, API testing, and infrastructure. Convert cURL commands to multi-language code, generate TypeScript interfaces from JSON, build Crontab schedules, and compute CIDR subnets.
JSON to TypeScript Generator
Convert JSON objects and API responses into clean, strongly typed TypeScript interfaces or type definitions.
JSON Schema Generator
Generate Draft-07 and 2020-12 compliant JSON Schema documents from sample JSON objects.
Cron Expression Builder & Explainer
Build, parse, and decode standard 5-part cron expressions with human-readable explanations and upcoming run times.
Open Graph & Social Media Preview
Preview how your web page appears when shared on Twitter/X, Facebook, LinkedIn, and Google SERPs with instant HTML meta tag generation.
JSON Formatter
Format, validate, and beautify your JSON data instantly with syntax highlighting.
Base64 Encoder / Decoder
Encode or decode strings to Base64 safely and quickly.
JWT Decoder
Decode JSON Web Tokens securely without sending them to a server.
JSON Validator
Validate your JSON strings and detect syntax errors instantly.
JSON Minifier
Minify JSON files by removing unnecessary whitespace and line breaks.
UUID Generator
Generate highly secure, random UUIDs (v4) instantly.
URL Encoder
Encode a string so it can be safely transmitted in a URL.
URL Decoder
Decode a URL-encoded string back to its original format.
HTML Formatter & Code Beautifier
Format, beautify, and indent unformatted HTML code directly in your browser with instant code highlights.
XML Formatter
Format and beautify XML strings instantly in your browser.
XML Validator
Validate XML syntax and find parsing errors instantly.
SQL Formatter
Format SQL queries and beautify database scripts.
SQL Minifier
Compress SQL queries by removing comments and whitespace.
CSS Beautifier
Beautify and format minified CSS code.
CSS Minifier
Minify CSS code to reduce file size for production.
JavaScript Beautifier
Format and indent messy or minified JavaScript code.
JavaScript Minifier
Quickly minify JS code by removing comments and whitespace.
JWT Generator
Generate HMAC SHA256 JSON Web Tokens entirely in your browser.
MD5 Hash Generator
Generate MD5 cryptographic hashes from text strings instantly.
SHA Hash Generator
Generate secure SHA-1, SHA-256, SHA-384, or SHA-512 hashes using the Web Crypto API.
Color Converter
Convert colors between HEX, RGB, HSL, and CMYK formats with a visual picker.
Regex Tester
Test and debug Regular Expressions visually in your browser.
Google SERP Snippet Simulator
Preview how your web page appears on Google Desktop and Mobile search results with pixel width calculations.
Color Palette Generator
Generate complementary, analogous, triadic, and monochromatic color palettes with instant CSS export.
cURL to Code Converter
Convert raw cURL commands into JavaScript Fetch, Axios, Python Requests, and Go HTTP client code.
Schema.org JSON-LD Structured Data Generator
Generate Google Rich Snippet-compatible JSON-LD structured data markup for Articles, FAQs, Software, Products, and Organizations.
CIDR & IPv4 Subnet Mask Calculator
Compute network address, broadcast address, usable IP host ranges, binary notation, and wildcard mask from any IPv4 address and CIDR prefix.
Frequently Asked Questions
Common questions about our developer & devops utilities.
In-Depth Guides & Tutorials
View all articlesHow to Properly Format JSON Payloads for REST APIs
Learn the standard practices for organizing and nesting JSON structures for optimal API transmission and parsing performance.
Understanding Base64 Encoding: A Complete Guide
A deep dive into how binary data is translated into 64 ASCII characters for safe web transport and storage.
JSON vs XML: Which Data Format is Better?
Compare the pros, cons, and performance differences between JSON and XML in modern web APIs and microservices.