Developer tools that JUST work.
Format, convert, minify, encode, and generate code with browser-first utilities built for working developers.
Featured tools
View allJSON Formatter & Validator
Format, validate, and minify JSON instantly with a browser-first editor.
formattersSQL Formatter
Format raw SQL with dialect support for SQL Server, MySQL, PostgreSQL, SQLite, and more.
convertersC# Class to JSON Converter
Generate sample JSON from C# classes, including nested classes, dictionaries, and lists.
convertersJSON to C# Class Converter
Convert JSON payloads into C# classes with nested types, arrays, DateTime, and Guid detection.
convertersC# Class to SQL Table Generator
Generate CREATE TABLE statements from C# classes for SQL Server, MySQL, and PostgreSQL.
convertersJSON to SQL Table Generator
Generate CREATE TABLE scaffolding from JSON objects with nested structures and arrays.
Formatters
Clean up raw payloads and queries into readable developer-friendly output.
JSON Formatter
Format, validate, and minify JSON instantly with a browser-first editor.
SQL Formatter
Format raw SQL with dialect support for SQL Server, MySQL, PostgreSQL, SQLite, and more.
Regex Tester
Live regex testing with match highlighting, capture groups, and flag controls.
YAML Formatter
Format and validate YAML, or convert between YAML and JSON. Essential for Kubernetes, Docker, and CI configs.
Cron Parser
Parse any cron expression into plain English and see the next 12 scheduled run times.
GraphQL
Write and execute GraphQL queries against a schema with mock data — no server needed.
SQL Runner
Run SQL queries against an in-browser SQLite database. Paste your schema, seed data, and query — instant results.
A11y Checker
Audit HTML for WCAG 2.1 AA accessibility violations using axe-core — critical, serious, moderate, and minor issues.
Converters
Move between C#, JSON, and SQL shapes without hand-writing boilerplate.
C# → JSON
Generate sample JSON from C# classes, including nested classes, dictionaries, and lists.
JSON → C#
Convert JSON payloads into C# classes with nested types, arrays, DateTime, and Guid detection.
C# → SQL
Generate CREATE TABLE statements from C# classes for SQL Server, MySQL, and PostgreSQL.
JSON → SQL
Generate CREATE TABLE scaffolding from JSON objects with nested structures and arrays.
Env Converter
Convert .env files to Dockerfile, docker-compose, GitHub Actions, Vercel, Kubernetes ConfigMap, and more.
Mock API
Generate realistic fake JSON data from a JSON Schema, OpenAPI 3.x spec, or a sample JSON object shape.
Color Palette
Extract color palettes from images or build them manually. Export to CSS variables, Tailwind config, SCSS, or JSON with WCAG contrast grades.
Minifiers
Shrink front-end assets and inspect the output before you ship.
CSS Minifier
Minify or beautify CSS for quick inspection and front-end debugging.
JS Minifier
Reduce JavaScript payload size for quick inspection and manual optimization.
HTML Minifier
Collapse HTML markup, remove comments, and preview smaller output instantly.
Encoders
Encode, decode, hash, and inspect developer payloads safely in the browser.
Base64
Convert text to Base64 and back with Unicode-safe browser-side processing.
URL Encoder
Encode special characters for URLs or decode percent-encoded strings safely.
JWT Decoder
Decode JWT header and payload locally so you can inspect claims and expiry quickly.
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes from text.
UUID Generator
Generate UUID v1, v4, and v7 in bulk, or validate and inspect any UUID.
QR Code
Generate QR codes from any text or URL, and scan QR codes from images or your webcam.