60+ free, open-source tools for developers and IT professionals.
No ads. No tracking. No login. Just tools that work.
🌐 Live App · 🐛 Report Bug · 💡 Request Feature
Dev Utilities is a fast, privacy-first collection of browser-based tools built for developers, DevOps engineers, and IT professionals. Everything runs locally in your browser — nothing is sent to a server.
Built with Vue 3, TypeScript, Vite, and Naive UI.
| Tool | Description |
|---|---|
| Token Generator | Generate secure random tokens with custom alphabet and length |
| Hash Text | Hash strings with MD5, SHA-1, SHA-256, SHA-512 and more |
| Bcrypt | Hash and verify passwords with bcrypt |
| UUID / ULID Generator | Generate RFC-compliant UUIDs and sortable ULIDs |
| JWT Parser & Generator | Decode, verify and sign JSON Web Tokens |
| Bcrypt | Hash and verify bcrypt passwords |
| RSA Key Pair Generator | Generate RSA public/private key pairs |
| SSL Certificate Decoder | Decode and inspect X.509 certificates |
| Encryption / Decryption | AES encrypt and decrypt text |
| BIP39 Mnemonic Generator | Generate BIP39 seed phrases for crypto wallets |
| HMAC Generator | Generate HMAC signatures |
| Password Strength Analyser | Check password entropy and strength |
| PDF Signature Checker | Verify digital signatures in PDF files |
| UUID Inspector | Parse and inspect UUID structure |
| Tool | Description |
|---|---|
| Date/Time Converter | Convert between timestamps, ISO 8601, and human-readable formats |
| Integer Base Converter | Convert numbers between binary, octal, decimal, hex and any base |
| Roman Numeral Converter | Convert between Arabic and Roman numerals |
| Base64 String Encoder/Decoder | Encode and decode Base64 strings |
| Base64 File Converter | Convert files to/from Base64 |
| Base32 Encoder | Encode and decode Base32 |
| Color Converter | Convert HEX, RGB, HSL, HSV color formats |
| Case Converter | Convert text between camelCase, snake_case, PascalCase and more |
| YAML ↔ JSON / TOML / XML | Bidirectional YAML, JSON, TOML, XML conversion |
| XML ↔ JSON / YAML | Bidirectional XML conversion |
| Markdown ↔ HTML | Convert Markdown to HTML and back |
| Text to Binary | Convert text to binary representation |
| Text to Unicode | Inspect Unicode code points |
| Text to NATO Alphabet | Spell out text in NATO phonetic alphabet |
| Morse Code Translator | Encode and decode Morse code |
| Byte Unit Converter | Convert between bytes, KB, MB, GB, TB |
| Number to Words | Convert numbers to English words |
| Unit Converter | Convert length, weight, temperature, speed and more |
| Tool | Description |
|---|---|
| URL Encoder/Decoder | Encode and decode URL components |
| HTML Entities | Escape and unescape HTML entities |
| URL Parser | Parse URL into scheme, host, path, query, fragment |
| Meta Tag Generator | Generate Open Graph and Twitter Card meta tags |
| OTP Generator & Validator | Generate and validate TOTP/HOTP one-time passwords |
| MIME Types | Look up MIME types by extension |
| JWT Parser | Decode JWT header, payload and signature |
| Keycode Info | Get JavaScript key codes from keyboard input |
| Slugify String | Convert text to URL-friendly slugs |
| HTML WYSIWYG Editor | Rich text editor with HTML output |
| User Agent Parser | Parse browser user-agent strings |
| HTTP Status Codes | Reference for all HTTP status codes |
| Safelink Decoder | Decode Microsoft SafeLinks URLs |
| HTTP Header Analyzer | Analyze and explain HTTP response headers |
| Semver Comparator | Compare semantic version numbers |
| Basic Auth Generator | Generate HTTP Basic Authentication headers |
| Favicon Generator | Generate favicons in multiple sizes |
| HTML Cleaner | Clean HTML: remove inline styles, classes, scripts, and more |
| HTML Minifier | Minify HTML with configurable options |
| CSS Formatter | Format and beautify CSS |
| Tool | Description |
|---|---|
| HTTP Request Builder | Build HTTP requests visually → generate cURL, fetch, axios, Python, PHP, Go |
| cURL Converter | Convert cURL commands to fetch, axios, Python requests, Node.js |
| Git Memo | Quick reference for common Git commands |
| Random Port Generator | Generate a random available port number |
| Crontab Generator | Build cron expressions with a visual editor |
| JSON Viewer | Inspect and pretty-print JSON |
| JSON Minifier | Minify JSON |
| JSON → CSV / YAML / TOML / SQL / XML | Convert JSON to various formats |
| SQL Prettify | Format and beautify SQL queries |
| chmod Calculator | Calculate Unix file permission modes |
| Docker Run → Compose | Convert docker run commands to docker-compose YAML |
| XML Formatter | Format and beautify XML |
| YAML Viewer | Validate and visualize YAML |
| Regex Tester | Test regular expressions with match highlighting |
| Regex Visualizer | Visualize regex as a railroad diagram |
| Regex Memo | Regular expressions cheatsheet |
| JSON Schema Validator | Validate JSON against JSON Schema (Draft-07) |
| CSV Viewer | Preview and inspect CSV files |
| CSV → JSON | Convert CSV to JSON |
| GraphQL Formatter | Format GraphQL queries and schemas |
| Dotenv Parser | Parse and inspect .env files |
| Cron Expression Parser | Parse cron expressions to plain English + next runs |
| JavaScript Formatter | Format and beautify JavaScript |
| PDF to Text | Extract text from PDF files |
| JSON Path Tester | Test JSONPath expressions against JSON |
| Gitignore Generator | Generate .gitignore files for any stack |
| Env Vars | Generate ready-to-use environment variable commands for Bash, Fish, PowerShell, CMD |
| Tool | Description |
|---|---|
| QR Code Generator | Generate QR codes with custom colors |
| Wi-Fi QR Code Generator | Generate Wi-Fi network QR codes |
| SVG Placeholder Generator | Generate SVG placeholder images |
| Camera Recorder | Record video from your webcam |
| Image Annotator | Annotate images with arrows, text and shapes |
| Image Color Picker | Pick colors from any image |
| Color Palette Generator | Extract color palettes from images |
| Numbering Bubbles | Generate numbered bubble icons, copy as PNG |
| Gradient Generator | Create CSS gradients visually |
| Image to ASCII | Convert images to ASCII art |
| EXIF Viewer | Extract and display image EXIF metadata |
| Barcode Generator | Generate various barcode formats |
| Color Contrast Checker | Check WCAG color contrast ratios |
| Image Resizer | Resize images with aspect-ratio letterboxing and fill color |
| Tool | Description |
|---|---|
| Math Evaluator | Evaluate mathematical expressions |
| ETA Calculator | Calculate estimated time of arrival |
| Percentage Calculator | Calculate percentages and ratios |
| Duration Calculator | Add and subtract time durations |
| Statistics Calculator | Mean, median, mode, std deviation, quartiles |
| Binary Calculator | Bitwise AND, OR, XOR, NOT, shifts with bit visualization |
| Tool | Description |
|---|---|
| Chronometer | Stopwatch with lap times |
| Temperature Converter | Convert Celsius, Fahrenheit, Kelvin and more |
| Benchmark Builder | Measure and compare JavaScript performance |
| Date Difference Calculator | Calculate the exact difference between two datetimes |
| Business Days Calculator | Count working days between dates |
| World Clock | View current time across multiple timezones |
| Tool | Description |
|---|---|
| Lorem Ipsum Generator | Generate placeholder text |
| Text Statistics | Word count, character count, readability stats |
| Emoji Picker | Search and copy emojis |
| String Obfuscator | Obfuscate sensitive strings |
| Text Diff | Compare two texts and highlight differences |
| Numeronym Generator | Generate numeronyms (i18n, k8s style) |
| ASCII Text Drawer | Render text as ASCII art with 200+ fonts |
| Tool | Description |
|---|---|
| Fake Data Generator | Generate fake names, emails, addresses, IPs and more — multi-column table output |
| Phone Parser & Formatter | Parse and format international phone numbers |
| IBAN Validator | Validate and parse IBAN numbers |
pnpm install
pnpm devpnpm buildpnpm test
pnpm lint
pnpm typecheckEvery push to main automatically deploys to GitHub Pages via the included workflow.
Live: aminechraibi.github.io/dev-utilities
VSCode with:
- Volar (disable Vetur)
- TypeScript Vue Plugin (Volar)
- ESLint
.vscode/settings.json:
{
"editor.formatOnSave": false,
"editor.codeActionsOnSave": {
"source.fixAll.eslint": true
}
}- Vue 3 + Composition API
- TypeScript
- Vite
- Naive UI
- UnoCSS
- VueUse
Issues and PRs are welcome. To add a new tool:
pnpm run script:create:tool my-tool-nameThen add it to the category array in src/tools/index.ts.
When submitting a new tool, include unit tests for the service logic in the generated .service.test.ts file. Run with pnpm test before opening a PR.
Based on IT Tools by Corentin Thomasset.
If Dev Utilities saves you time, consider supporting:
