DeveloperTools.
Format, encode, hash, and generate — all in your browser. Zero dependencies, zero server calls, 100% private.
Developer
JSON Formatter & Validator
Format, validate, and minify JSON data instantly. Free online tool with error detection, indentation options, and one-click copy.
Open Tool ›🔐Base64 Encode & Decode
Encode text to Base64 or decode Base64 strings back to plain text. Supports Unicode, real-time conversion, and copy-to-clipboard.
Open Tool ›🔗URL Encode & Decode
Encode and decode URLs and query parameters instantly. Supports encodeURIComponent and encodeURI modes with percent-encoding.
Open Tool ›#️⃣Hash Generator
Generate SHA-256, SHA-384, SHA-512, and SHA-1 hashes from text instantly. Secure client-side hashing with copy-to-clipboard.
Open Tool ›🆔UUID Generator
Generate random UUID v4 identifiers instantly. Create single or bulk UUIDs, copy to clipboard, and customize the output format.
Open Tool ›📝Lorem Ipsum Generator
Generate lorem ipsum placeholder text for web design and development. Create paragraphs, sentences, or words with customizable length.
Open Tool ›🔍Regex Tester
Test and debug regular expressions in real-time with instant match highlighting, capture group extraction, find-and-replace, and preset patterns.
Open Tool ›📝Diff Checker
Compare two texts side-by-side and find differences instantly. Split and unified views with inline word-level highlighting.
Open Tool ›🔑JWT Decoder
Decode and inspect JSON Web Tokens instantly. View header, payload, claims, and expiration status. 100% client-side.
Open Tool ›⏰Unix Timestamp Converter
Convert Unix timestamps to dates and vice versa. Live clock, ISO 8601, relative time, day of year, and week number.
Open Tool ›⏰Cron Expression Generator
Build and test cron expressions visually. See human-readable descriptions, next run times, and use quick presets for common schedules.
Open Tool ›🔄JSON to TypeScript Converter
Convert JSON to TypeScript interfaces instantly. Generate type-safe interfaces and type definitions from any JSON data with customizable options.
Open Tool ›🗄️SQL Formatter & Beautifier
Format, beautify, and minify SQL queries instantly. Customizable keyword casing, indentation, and comma placement. Supports MySQL, PostgreSQL, and more.
Open Tool ›🔄CSV to JSON Converter
Convert CSV to JSON and JSON to CSV instantly with automatic delimiter detection, data preview, and downloadable output.
Open Tool ›📄HTML Formatter & Beautifier
Format, beautify, and minify HTML code instantly with customizable indentation, syntax validation, and one-click copy.
Open Tool ›📋XML Formatter & Validator
Format, validate, and minify XML documents instantly with syntax highlighting, error detection, and tree view visualization.
Open Tool ›📄YAML Formatter & Validator
Format, validate, and convert YAML to JSON or vice versa. Perfect for DevOps engineers working with Kubernetes, Docker Compose, and CI/CD pipelines.
Open Tool ›🖼️Base64 Image Encoder & Decoder
Convert images to Base64 data URLs and decode Base64 back to images. Supports PNG, JPG, WebP, GIF with live preview and size comparison.
Open Tool ›📦Code Minifier
Minify JavaScript, CSS, and HTML code to reduce file size and improve performance. Visual size reduction stats and instant optimization.
Open Tool ›⚙️Environment Variable Manager
Create, edit, format, and validate .env files with syntax validation. Convert between .env and JSON formats with sorting and analysis.
Open Tool ›Design
Color Picker & Converter
Pick colors, convert between HEX, RGB, and HSL formats. Generate color harmonies, shades, tints, and check WCAG contrast ratios.
Open Tool ›🎨CSS Box Shadow Generator
Design beautiful CSS box shadows with a visual editor. Multiple layers, presets, live preview, and one-click copy for CSS and Tailwind.
Open Tool ›🎨CSS Gradient Generator
Create beautiful CSS gradients with a live visual editor. Build linear, radial, and conic gradients with custom color stops, presets, and one-click CSS code copy.
Open Tool ›Text
Markdown Preview
Write and preview Markdown in real-time with split, edit, and preview modes. Supports headings, lists, code blocks, tables, and more.
Open Tool ›🔢Word Counter
Count words, characters, sentences, paragraphs, and estimate reading time instantly. Includes word frequency analysis.
Open Tool ›🔄Case Converter
Convert text between lowercase, UPPERCASE, Title Case, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, and more.
Open Tool ›