Developer Tools
JSON, regex, hashing, encoding, color and CSS utilities for everyday coding.
JSON Formatter
Pretty print, collapse and error-highlight JSON.
JSON to CSV
Flatten nested JSON to CSV.
JSON Diff
Compare two JSON objects side by side.
JSON Minifier
Remove whitespace from JSON.
JSON to TypeScript
Generate TypeScript interfaces and Zod schemas from JSON.
JSON to TOON
Convert JSON to TOON (Token-Oriented Object Notation) — compact LLM-friendly format.
TOON to JSON
Parse TOON (Token-Oriented Object Notation) back into standard JSON.
YAML / JSON Converter
Bidirectional YAML and JSON converter.
CSV to JSON
Paste CSV and get a JSON array.
Regex Tester
Live regex testing with match highlighting and explanations.
Cron Builder
Visual cron expression editor with next-run preview and plain-English explanation.
JWT Decoder
Decode JWT header and payload and check expiry.
Base64 Encoder
Encode and decode Base64 from text, files or images.
URL Encoder
URL encode and decode with component breakdown.
HTML Entity Encoder
Encode and decode HTML named entities.
HTML Formatter
Indent and minify HTML.
Markdown to HTML
Live Markdown preview with raw HTML output.
Unix Timestamp
Convert between epoch and human-readable dates with timezone picker.
UUID Generator
Bulk-generate UUID v4, v7 and ULID values.
Hash Generator
MD5, SHA-1, SHA-256 and SHA-512 hashing.
Bcrypt Generator
Hash and verify passwords with bcrypt.
HTTP Status Codes
Searchable HTTP status code reference with curl examples.
robots.txt Generator
GUI builder for robots.txt files.
Schema Markup Generator
FAQ, Article and Product JSON-LD generator.
Docker Compose Converter
Convert docker run commands to compose.yml.
Color Format Converter
Convert between HEX, RGB, HSL and OKLCH.
CSS Gradient Generator
Visual gradient builder with CSS output.
CSS Box Shadow Builder
Interactive sliders that output copy-paste CSS shadows.
Tailwind Cheatsheet
Searchable Tailwind v3 class reference.
Flexbox Playground
Visual Flexbox property tester.