Developer tools that just work.
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JSON
Format, validate, minify, compare, and convert JSON data. Every tool runs in your browser with real-time error detection and tree visualization.
11 toolsXML
Format, validate, and convert XML documents. Supports pretty-printing with configurable indentation and conversion to JSON or CSV.
5 toolsYAML
Format, validate, and convert YAML files. Bidirectional conversion with JSON and syntax validation with precise error locations.
7 toolsCSV
Parse, format, and convert CSV data. Convert between CSV, JSON, and other tabular formats with custom delimiter support.
6 toolsEncoders & Decoders
Encode and decode Base64, URL, HTML entities, and more. All conversions happen instantly in your browser with no server round-trips.
4 toolsEscapers & Unescapers
Escape and unescape strings for JSON, HTML, XML, URLs, and regular expressions. Handle special characters safely across formats.
7 toolsDiff & Compare
Compare two files or data structures side by side. Supports JSON, text, and structured diff with highlighted additions and removals.
1 toolGenerators
Generate UUIDs, Lorem Ipsum, mock data, hash values, and other developer utilities. Configurable output with instant copy-to-clipboard.
10 toolsText & Strings
Format, manipulate, reverse, sort, and analyze text and strings. Includes word counters, readable scores, and markdown conversions.
8 toolsTOML
Format, validate, and convert TOML files. Convert TOML to JSON and YAML safely.
4 toolsNumbers & Math
Format numbers, calculate percentages, use scientific notation, or execute base conversions across different units and numeral systems instantly.
7 toolsColor Tools
Check contrast ratios, generate color palettes, build CSS gradients, and simulate color blindness. All pure math, no server calls.
4 toolsCrypto & Security
Generate HMAC signatures, analyze password strength, generate secure random strings, and create ULIDs — all 100% client-side using the Web Crypto API.
4 toolsWeb & Network
Parse URLs, decode User-Agent strings, explain CORS headers, look up MIME types, geolocate IP addresses, and query DNS records — all in one place.
6 toolsCode Formatters
Format and minify CSS, SCSS, LESS, HTML, JavaScript, TypeScript, GraphQL, and Markdown with Prettier WASM — entirely local, no uploads. Convert cURL to fetch() or Axios.
10 toolsPDF Tools
View, extract text, merge, split, and extract pages from PDF files — all locally in your browser using PDF.js and pdf-lib. No upload, no server.
5 toolsImage Tools
Resize, convert, compress, and encode images — all locally in your browser. SVG optimizer with SVGO. No upload, no server.
6 toolsFile Tools
Create and extract ZIP archives, calculate file hashes, and convert between Excel and JSON formats — all locally in your browser.
5 toolsQR & Barcode
Generate customizable QR codes for text, URLs, contacts, WiFi, and email. Decode QR codes from images — all locally.
2 toolsGenerators
Generate type definitions (TypeScript, Python, Go, Rust, Java, C#, Zod), JSON Schema, Markdown tables, and fake test data — all locally.
10 tools