DevKit
Professional-grade development tools designed to streamline your workflow and boost productivity
🛠️
Total Tools
165+
📊
Categories
23
⭐
Featured
16
🚀
Popular
16
Tools by Category
Organized by functionality for easy discovery
💻Developer Tools
32 tools🔐
Chmod Calculator
Convert file permissions to rwx, numeric & binary
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📏
Code Line Counter
Code length tool
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©️
Copyright Code Generator
Legal footer & license snippet generator
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⏱️
Cron Calculator
Build and validate cron expressions with visualization
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👆
CSS Cursor Viewer
Live preview of all CSS cursor styles
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🎯
CSS Specificity Checker
Calculate selector specificity
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🔗
Data URL Generator
Encode/decode data: URIs locally
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📊
Faker / Dummy Data Generator
Generate fake JSON or CSV data
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📚
Git Command Generator
Interactive Git command builder with common workflows
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🔐
Hash Generator
Generate MD5, SHA, SHA3, HMAC hashes
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⚛️
HTML ⇄ JSX Converter
HTML ↔ JSX with correct attrs & styles
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👁️
HTML Previewer
Sandboxed live HTML preview
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🌐
HTTP Status Lookup
Searchable database of HTTP status codes with troubleshooting tips
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🧩
JSON → Code
Generate types & validators from JSON
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🔓
FeaturedPopular
JWT Debugger & Generator
Decode, verify, and create JWTs
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⌨️
Keyboard Info Viewer
Inspect keyCode, code, and visualize keyboard layout
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🏷️
Meta Tag Generator
Generate SEO meta tags, Open Graph, and Twitter Card tags
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🐘
PHP Serialize ⇄ Unserialize
PHP serialize() ↔ JSON (safe)
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🎮
Playground
Experiment with JavaScript/TypeScript snippets with live preview
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📱
FeaturedPopular
QR Code Generator
QR image encoder
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🔄
Query String ↔ JSON Converter
Convert URL parameters to JSON and vice versa
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🔍
FeaturedPopular
Regex Tester
Test regular expressions with live highlighting
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📱
Responsive Font Checker
Test font scaling on screens
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📱
FeaturedPopular
Responsive Testing Tool
Preview websites at different screen sizes and test responsive design
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💅
SCSS Formatter
Beautify & minify SCSS
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📦
Semver Calculator
Parse, compare & bump SemVer
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🔗
Slug Generator
Convert text into SEO-friendly slugs
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⚛️
SVG to React Component
Convert SVGs into reusable React components
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🔓
UID / ULID Decoder
Decode ULID/UUID/ObjectId
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🆔
ULID Generator
Sortable unique ID generator
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🔍
URL Parser
Inspect, clean & rebuild URLs
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🆔
FeaturedPopular
UUID Generator
Unique ID creator
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📝Text Tools
15 tools🎨
ASCII Art Text Generator
Convert text into ASCII banner art
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\
Escape / Unescape
Backslash utilities for JS/JSON/Regex
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📋
Line Sort & Dedupe
Sort, dedupe, count & filter lines
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✍️
FeaturedPopular
Lorem Ipsum Generator
Dummy text generator
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📝
Markdown
Write and preview Markdown with syntax highlighting
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📡
Morse Code Translator
Text to Morse and Morse to Text
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📊
Paragraph & Sentence Counter
Count text blocks
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💬
FeaturedPopular
Prompt Filler
Create and fill prompt templates with variables for AI prompts
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⏱️
Reading & Speaking Time Estimator
Estimate reading time
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🔄
ROT13 Encoder / Decoder
Reversible Caesar cipher tool
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🔤
Text Case Converter
Upper/lower converter
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🗜️
Text Compressor
Compress using RLE and Base64
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✂️
Text Delimiter
Split/join text with regex & CSV-aware
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📝
FeaturedPopular
Text Utilities
Word count, case conversion, text comparison and more
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🧹
Whitespace Cleaner
Remove extra spaces and lines
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🌈Color Tools
10 tools👁️
Color Blindness Simulator
Simulate color perception
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✅
Color Code Validator
Validate HEX, RGB, and HSL values
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♿
Color Contrast Checker
Check WCAG contrast ratio
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🎨
FeaturedPopular
Color Converter
Convert colors between HEX, RGB, HSL formats with palette generator
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🌈
Color Gradient Generator
CSS gradient maker
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🧠
Color Meaning Tool
Understand color psychology, symbolism & contrast
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🎨
Color Picker & Palette Generator
Advanced color selection with palette export and favorites
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🎨
Color Relationship Generator
Explore complementary, triadic, and analogous palettes
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🔄
HEX to RGB Converter
HEX to RGB
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🔄
RGB to HEX Converter
Color format converter
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🖼️Image Tools
12 tools🔄
Base64 Image Converter
Encode images to Base64 and decode Base64 to images — offline
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🖼️
Base64 Image Optimizer
Compress base64 image size
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🎨
Favicon Generator
Favicon from text or image
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🎨
Icon Maker (ICO/ICNS & Favicon)
Generate ICO, ICNS & favicon packs
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✂️
Image Background Remover
AI cutout with transparent PNG
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🖼️
Image Base64 Optimizer
Compress, resize, and optimize Base64 images in your browser
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🗜️
Image Compressor
Compress images
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📦
Image Extractor
Extract images from URL/HTML/ZIP
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🖼️
FeaturedPopular
Image Format Converter
Convert images between PNG, JPG, WebP, SVG formats with compression
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🎨
SVG Extractor
Extract, dedupe & optimize SVGs
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✨
SVG Optimizer
Clean and minify SVG code
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🔤
Text to SVG Converter
Text → SVG with custom fonts
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🔒Security Tools
8 tools🔑
Basic Auth Generator
Encode credentials into Base64 Authorization
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🔒
Bcrypt Generator
Secure bcrypt hashing and verifier
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🔐
BIP39 Passphrase
Generate or inspect BIP39 passphrases locally with entropy & safety tools
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🔐
Data Encrypt · Decrypt
AES-256 + PBKDF2 + HMAC, in-browser
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🔐
HMAC Generator
Generate HMAC with SHA-1, SHA-256, SHA-512
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💪
Password Strength Checker
Evaluate password security
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🔑
PGP Key Generator
Generate RSA/ECC OpenPGP keys in-browser
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🔑
FeaturedPopular
Random Password Generator
Secure key generator with customizable options
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✨Code Formatters
11 tools✨
FeaturedPopular
Code Beautifier & Minifier
Beautify or minify JavaScript, CSS, and HTML code
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🎨
CSS Formatter
Format and organize CSS code
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💅
CSS to SCSS/SASS Converter
Convert CSS to SCSS or SASS with nesting
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💎
ERB Formatter
Beautify & minify ERB safely
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📊
GraphQL Formatter
Format, validate, and export GraphQL queries
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🔄
HAML ⇄ HTML Converter
Bidirectional HAML ↔ HTML conversion
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🌐
HTML Formatter
Format and preview HTML code
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📜
JavaScript Formatter
Beautify JavaScript code
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📄
FeaturedPopular
JSON Formatter
Prettify and visualize JSON data
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🗄️
SQL Formatter
Format and beautify SQL queries with syntax highlighting
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📄
XML Formatter
Format and beautify XML
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🎨CSS Tools
5 tools🎬
CSS Animation Generator
Create smooth CSS animations with keyframes and transitions
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🌗
CSS Box Shadow Generator
Create custom shadows with live preview
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🎨
FeaturedPopular
CSS Layout Generator
Visual CSS Grid and Flexbox builder with live preview
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✅
CSS Validator
Validate CSS syntax and rules
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💅
LESS Formatter
Beautify & minify LESS
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🔄Data Converters
8 tools🔢
Base Converter
Convert numbers between binary, octal, decimal, hex, and custom bases
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🔢
Binary to Decimal Converter
Binary number conversion
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🔄
Hex ⇄ ASCII Converter
Hex ↔ ASCII with hexdump & hashes
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🧮
JSON ⇄ CSV Converter
Convert between CSV and JSON with header support
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📝
Markdown ↔ HTML ↔ Plaintext
Convert Markdown to HTML, HTML to Markdown, or plain text
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🐘
PHP ⇄ JSON Converter
PHP array/object ↔ JSON (safe)
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⏰
FeaturedPopular
Unix Timestamp Converter
Date/time format converter
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🔄
YAML to JSON Converter
Convert YAML and JSON
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🔐String Encoders
4 tools🎨Design Tools
6 tools📸
Code Preview Maker
Beautiful code screenshots
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🎭
CSS 3D Text Generator
Design layered 3D text shadows with CSS
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🔺
CSS Triangle Generator
Create border-based or clip-path triangles
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👯
Font Pair Previewer
Preview Google Font pairs for headings and body text
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🪟
Glassmorphism CSS Generator
Create frosted-glass UI with live preview
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🎨
SVG ⇄ CSS
SVG ↔ CSS data URI & mask
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🔍SEO Tools
5 tools✅Input Validators
7 tools💳
Credit Card Validator
Validate card number using Luhn's algorithm
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✉️
Email Validator
Check if email format is valid
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🔍
Favicon Checker
Verify favicon presence
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✅
HTML Validator
Validate HTML structure
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✅
JSON Validator
Check if JSON is valid and well-formed
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🔗
URL Validator
Validate web URLs with regex
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✅
XML Validator
Validate XML syntax and structure
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📁File Tools
1 tools🔤Font Tools
10 tools⚖️
Font Comparison Tool
Compare multiple fonts side-by-side
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🔄
Font Converter
Convert TTF, OTF, and WOFF font formats
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🔄
Font Fallback Tester
Preview how fallback fonts render when primary fonts fail
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🔤
Font Glyph Viewer
Explore full character map of any font
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✨
Font Ligature Tester
Preview ligatures and OpenType features in fonts
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📏
Font Line Height Tester
Visualize and generate line-height styles for better readability
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ℹ️
Font Metadata Viewer
Inspect font name, glyphs, features, and coverage
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👯
Font Pair Previewer
Preview Google Font pairs for headings and body text
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🔤
Font Previewer
Test and preview custom fonts live
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✂️
Font Subsetter
Remove unused glyphs from fonts
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🧮UI Calculators
7 tools📐
Aspect Ratio Calculator
Resize with correct proportions
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📊
CSS Clamp Calculator
Generate responsive font sizes
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🔄
CSS Unit Converter
Convert px, rem, em, %, vw, vh
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📐
Grid Column Width Calculator
Visualize column spans in CSS Grid
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📏
Line Height Calculator
Calculate optimal text spacing
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📏
Pixel to REM Calculator
Convert px to rem and vice versa
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📚
Z-Index Conflict Checker
Visualize layer stacking order
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