JSON Tools
15 tools available
JSON Formatter
Format and prettify JSON with syntax highlighting
JSON Validator
Validate JSON syntax and structure
JSON Viewer
Explore JSON data in a tree view
JSON Stringify
Convert JSON to escaped string representation
JSON Sort Keys
Recursively sort all keys in a JSON document alphabetically
JSON Flatten / Unflatten
Flatten nested JSON to dot-notation or unflatten back
JSON Minifier
Minify JSON with size statistics
JSON Patch
Generate or apply RFC 6902 JSON Patch operations
JSON Diff
Compare two JSON documents and show structural differences
JSONPath Tester
Test JSONPath expressions against a JSON document
JSON Merge / Deep Merge
Deep merge two JSON objects together
JSON ↔ JSON5
Convert between strict JSON and relaxed JSON5 format
NDJSON / JSONL Viewer
Parse and display newline-delimited JSON line by line
JSON Path Finder
Enter JSON and a value to get every JSONPath that matches
Smart JSON Diff
Structural diff between two JSON docs with summary stats
HTML Tools
5 tools available
XML Tools
10 tools available
XML Formatter
Format and prettify XML documents
XML Minify
Minify XML by removing whitespace
XML Viewer
View XML in a structured tree format
XML Pretty Print
Pretty print XML with syntax highlighting
XML Validator
Validate XML syntax and well-formedness
XML Editor
Edit XML with real-time validation and highlighting
XML Parser
Parse XML and extract structured data
WSDL Formatter
Format WSDL (Web Services Description Language) files
SOAP Formatter
Format SOAP XML messages
XML Schema (XSD) Validator
Validate XML against basic XSD schema rules
YAML Tools
6 tools available
YAML Validator
Validate YAML syntax and structure
YAML Viewer
View YAML in a structured tree format
YAML Formatter
Format and prettify YAML documents
YAML Parser
Parse YAML and extract structured data
YAML Multi-Doc Splitter
Split a multi-document YAML file into separate documents
YAML Anchor Expander
Expand YAML anchors and aliases into plain YAML
CSS Tools
24 tools available
Minify CSS
Minify CSS by removing whitespace and comments
CSS Beautifier
Beautify and format CSS code
CSS Formatter
Format CSS with proper indentation
CSS Pretty Print
Pretty print CSS with color coding
CSS to LESS
Convert CSS to LESS preprocessor syntax
CSS to SCSS
Convert CSS to SCSS preprocessor syntax
CSS to SASS
Convert CSS to SASS syntax
CSS to Stylus
Convert CSS to Stylus syntax
Stylus to CSS
Convert Stylus to standard CSS
Stylus to LESS
Convert Stylus to LESS syntax
Stylus to SCSS
Convert Stylus to SCSS syntax
Stylus to SASS
Convert Stylus to SASS syntax
LESS to CSS
Convert LESS to standard CSS
LESS to SCSS
Convert LESS to SCSS syntax
LESS to SASS
Convert LESS to SASS syntax
LESS to Stylus
Convert LESS to Stylus syntax
SCSS to CSS
Convert SCSS to standard CSS
SCSS to LESS
Convert SCSS to LESS syntax
SCSS to SASS
Convert SCSS to SASS syntax
SCSS to Stylus
Convert SCSS to Stylus syntax
SASS to CSS
Convert SASS to standard CSS
SASS to LESS
Convert SASS to LESS syntax
SASS to SCSS
Convert SASS to SCSS syntax
SASS to Stylus
Convert SASS to Stylus syntax
JavaScript Tools
2 tools available
Converters Tools
27 tools available
JSON to XML
Convert JSON data to XML format
JSON to CSV
Convert JSON array to CSV format
JSON to YAML
Convert JSON to YAML format
JSON to TSV
Convert JSON array to Tab-Separated Values
JSON to String
Convert JSON to escaped string format
XML to JSON
Convert XML to JSON format
XML to CSV
Convert XML data to CSV format
XML to String
Convert XML to escaped string
XML to YAML
Convert XML to YAML format
RSS to JSON
Convert RSS/Atom feed to JSON format
YAML to JSON
Convert YAML to JSON format
YAML to XML
Convert YAML to XML format
YAML to CSV
Convert YAML array to CSV format
CSV to JSON
Convert CSV data to JSON format
CSV to XML
Convert CSV data to XML format
CSV to YAML
Convert CSV data to YAML format
CSV to HTML
Convert CSV data to HTML table
String to JSON
Parse stringified JSON back to formatted JSON
String to XML
Parse stringified XML back to formatted XML
BSON ↔ JSON
Convert between BSON hex and JSON
INI ↔ JSON
Convert between INI config files and JSON
HCL (Terraform) ↔ JSON
Convert between HCL/Terraform config and JSON
EDN ↔ JSON
Convert between Clojure EDN and JSON formats
JSON → Go Struct
Convert JSON to Go struct definitions with json tags
YAML → .env
Flatten a YAML file to KEY=value lines
.env → YAML
Group dotted KEY_NAME pairs back into a YAML tree
JSON → Zod Schema
Derive a runtime-validatable Zod schema from a JSON sample
Images Tools
15 tools available
Sample Images
Download standard-size placeholder images or generate a custom size
Image Converter
Convert images between PNG, JPEG, WebP and more
Bulk Image Converter
Convert multiple images at once to a chosen format
Image Editor
Crop, annotate, draw, and add text to images
Aspect Ratio Calculator
Calculate aspect ratios and resize dimensions proportionally
SVG Optimizer
Minify and clean SVG markup by removing metadata and comments
Favicon Generator
Generate a favicon pack from a single image or emoji
Lorem Picsum Picker
Browse and download curated placeholder images
Avatar / Initials Generator
Create initials-based SVG avatars from a name
Image Metadata Viewer
Show EXIF / IPTC / XMP metadata from JPEG, PNG, HEIF
Base64 ↔ Image
Encode an image to a data URL, or decode a data URL back to an image
Image Palette Extractor
Extract the dominant colors from an image
Image Resizer (Batch)
Resize and crop multiple images in the browser
WebP ↔ AVIF Converter
Convert images between WebP, AVIF, PNG, and JPEG in-browser
Video Thumbnail Extractor
Scrub a video and export a frame as a PNG or JPEG
Text / String Tools
32 tools available
URL Encoder
Encode strings for safe URL usage
URL Decoder
Decode percent-encoded URL strings
HTML Entity Encode
Convert characters to HTML entities
HTML Entity Decode
Convert HTML entities back to characters
JWT Decoder
Decode and inspect JWT token header and payload
Lorem Ipsum Generator
Generate placeholder text in words, sentences, or paragraphs
Word Counter
Count words, characters, sentences, paragraphs, and reading time
Text Diff
Compare two text blocks and highlight differences
Case Converter
Convert between camelCase, snake_case, PascalCase, kebab-case, and more
Line Sorter
Sort lines alphabetically, numerically, reverse, shuffle, or dedupe
Regex Tester
Test regex patterns with match highlighting and group extraction
String Escape / Unescape
Escape and unescape strings for JS, JSON, HTML, or SQL
Markdown Preview
Live preview rendered Markdown with syntax highlighting
.env Validator
Validate .env files and flag missing values or duplicate keys
Byte Counter
Show byte size of text in UTF-8, UTF-16, and ASCII
TOML Formatter
Format and validate TOML configuration files
Diff Viewer (Side-by-Side)
View unified or side-by-side diffs with syntax highlighting
Environment Variable Diff
Compare two .env files and show added, removed, and changed variables
Markdown Table Editor
Edit Markdown tables with a visual grid — add rows and align cells
JWT to cURL
Generate a curl command that uses a JWT as the Authorization header
Unicode Normalizer
Normalize Unicode text between NFC, NFD, NFKC, and NFKD forms
Markdown Resume Builder
Write a resume in Markdown and export to styled HTML or PDF
Regex Cheatsheet
Searchable reference of regex syntax with live examples
Unicode Escape
Escape non-ASCII chars as \uXXXX or decode them back
Pronouncing Counter
Count syllables per word (useful for copy + slugs)
Readability Scorer
Flesch + grade-level estimate for any prose block
Word Frequency Counter
Rank words by frequency, stop-words filtered
Clipboard Cleaner
Strip smart quotes, zero-widths, non-breaking spaces
Markdown TOC
Generate a table of contents from markdown headings
Whitespace Visualizer
Render spaces, tabs, newlines, zero-widths as glyphs
Line Deduper
Remove duplicate lines, preserve order or sort
Hard Wrap
Re-wrap prose to a fixed column width
Encoding Tools
6 tools available
Base64 Encode
Encode text or files to Base64
Base64 Decode
Decode Base64 back to text or file
Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text
Number Base Converter
Convert between decimal, hex, octal, and binary
Timestamp Converter
Convert between Unix epoch, ISO 8601, and human-readable dates
Base58/Base32/Base85
Encode and decode text in Base58, Base32, or Base85
Generators Tools
17 tools available
UUID Generator
Generate v4 UUIDs — single or bulk
ULID Generator
Generate sortable ULIDs (Universally Unique Lexicographically Sortable IDs)
Password Generator
Generate secure random passwords with custom rules
cURL to Code
Convert cURL commands to fetch, axios, Python requests, and more
Cron Expression Parser
Describe cron expressions in plain English with next run times
SQL Formatter
Format and prettify SQL queries
GraphQL Formatter
Format and prettify GraphQL queries and schemas
JSON Schema Generator
Generate JSON Schema from a sample JSON object
TypeScript Interface Generator
Generate TypeScript interfaces from JSON data
Mock Data Generator
Generate fake names, emails, addresses, and more in JSON or CSV
QR Code Generator
Generate QR codes from text or URLs
Chmod Calculator
Convert between symbolic and numeric Unix file permissions
Unix Cron Visualizer
Visualize cron schedules as a timeline of next executions
Chmod → English
Convert numeric chmod values to human-readable permission descriptions
.gitignore Builder
Build a .gitignore from curated language/framework templates
Privacy Policy Generator
Generate a privacy policy from your app name, URL, and data practices
Crontab Generator
Build cron schedules visually with dropdowns for each field
Color Tools
7 tools available
Color Converter
Convert between HEX, RGB, HSL, OKLCH, and Tailwind colors
Color Palette Generator
Generate complementary, analogous, and triadic color palettes
Contrast Checker
Check WCAG AA/AAA contrast ratio between two colors
Gradient Generator
Design CSS/SVG gradients and export as CSS, SVG, or Figma tokens
Color Contrast Matrix
Test WCAG contrast ratios for every color pair in a palette
Hex → Tailwind
Map a hex/rgb color to the nearest Tailwind class
Gradient → Code
Translate a CSS gradient into SwiftUI, Android, and Flutter code
Networking Tools
14 tools available
IP Address Lookup
Parse and validate IPv4/IPv6 addresses and CIDR ranges
HTTP Status Reference
Quick lookup of HTTP status codes and their meanings
DNS Record Explainer
Explain A, AAAA, CNAME, MX, TXT, SRV and other DNS records
WebSocket Frame Decoder
Decode WebSocket frame headers and payloads from hex
Port Reference Lookup
Look up common services for any TCP/UDP port number
MIME Type Lookup
Convert between file extensions and MIME types
Certificate Decoder
Decode X.509 PEM certificates into readable fields
HPKP Generator
Generate HTTP Public Key Pinning headers from a certificate
User-Agent Parser
Parse browser, OS, device from a User-Agent string
CIDR Calculator
Calculate network address, broadcast, host range from CIDR notation
HTTP Header Analyzer
Analyze HTTP headers for security, caching, and best practices
CORS Header Tester
Analyze CORS response headers for misconfigurations and security issues
MAC Address Lookup (OUI)
Identify the manufacturer from a MAC address OUI prefix
HTTP Method Reference
Quick reference for all HTTP methods with use cases and safety info
PDF Tools
6 tools available
Sample PDFs
Download ready-made sample PDFs of various sizes and page counts
Markdown → PDF
Write or paste Markdown and export it as a downloadable PDF
PDF Merger
Merge multiple PDFs into a single document
PDF Splitter
Split a PDF by page ranges
PDF Compressor
Reduce PDF file size in the browser
Invoice Generator
Create professional invoices from line items and export as PDF
API / Config Tools
6 tools available
OpenAPI Viewer
Browse endpoints, schemas, and operations from an OpenAPI 3 spec
Swagger to Postman
Convert an OpenAPI / Swagger spec into a Postman collection
package.json Analyzer
Detect duplicate dependencies and common issues
Dockerfile Linter
Check Dockerfiles against common best practices
Kubernetes Manifest Validator
Validate required fields in Kubernetes YAML manifests
Mock Server Config Generator
Generate stub responses from a JSON Schema
Date / Time Tools
6 tools available
Timezone Converter
Convert a date-time between multiple timezones
Duration Calculator
Calculate the duration between two dates or times
Age Calculator
Calculate exact age in years, months, and days from a birthdate
Working Day Calculator
Count business days between two dates (excluding weekends)
Week Number Lookup
Find the ISO week number for any date
Date Offset Calculator
Add/subtract days, weeks, months, years with weekday result
Security / Crypto Tools
11 tools available
JWT Encoder
Encode a JWT token from header, payload, and secret
Bcrypt Hash Tester
Generate bcrypt hashes and verify passwords against hashes
HMAC Generator
Generate HMAC signatures using SHA-256, SHA-512, and more
Password Strength Analyzer
Analyze password strength with entropy and crack-time estimates
TOTP / 2FA Generator
Generate time-based one-time passwords from a secret key
SAML Response Decoder
Decode Base64-encoded SAML responses into readable XML
OAuth PKCE Generator
Generate code_verifier, code_challenge, and state for OAuth PKCE flows
SSH Key Fingerprint
Calculate the fingerprint of an SSH public key
CSR Decoder
Decode PEM-encoded Certificate Signing Requests
RSA Keypair Generator
Generate RSA public/private keypairs in PEM format
Secrets Scanner
Scan text/code for leaked API keys, tokens, and credentials
Web / Frontend Tools
21 tools available
Meta Tags / OG Previewer
Preview how meta tags and OpenGraph data appear on social platforms
Tailwind → CSS
Convert Tailwind CSS classes to vanilla CSS properties
HTML → React JSX
Convert HTML to valid React JSX syntax
HTML → Markdown
Convert HTML content to Markdown format
SVG → React Component
Convert SVG markup into a React component
CSS Unit Converter
Convert between px, rem, em, vw, vh, and other CSS units
robots.txt Validator
Validate robots.txt syntax and check for common issues
Sitemap XML Validator
Validate sitemap.xml structure and check for common issues
RSS/Atom Feed Validator
Validate RSS 2.0 and Atom feed XML structure
CSS Box Shadow Builder
Generate CSS box-shadow values from parameters
CSS Clip-Path Builder
Generate CSS clip-path polygon values
Flexbox Playground
Generate CSS flexbox layouts from property combinations
Cubic Bezier Editor
Generate CSS cubic-bezier timing functions from control points
Accessibility Auditor
Check HTML for common accessibility issues (ARIA, alt text, headings)
Structured Data Tester
Validate JSON-LD schema.org structured data
OpenGraph Image Debugger
Validate OpenGraph meta tags and preview how URLs appear when shared
Sitemap Generator
Generate sitemap.xml from a list of URLs with priority and frequency
Favicon Checker
Validate favicon HTML tags and preview all icon sizes
px ↔ rem Table
Generate a pixel-to-rem scale table for a chosen base size
URL Parser
Break a URL into scheme, host, path, query, fragment
Query String → JSON
Turn ?a=1&b=foo into a flat JSON object
Data / SQL Tools
10 tools available
CSV Viewer
View CSV data in a sortable, filterable table
CSV → SQL INSERT
Generate SQL INSERT statements from CSV data
SQL → CSV Fixture
Convert SQL INSERT statements to CSV format
TSV ↔ CSV
Convert between tab-separated and comma-separated values
CSV Schema Validator
Validate CSV data against a column schema definition
SQL → Prisma Schema
Convert SQL CREATE TABLE statements to Prisma schema
CSV Column Remapper
Rename, reorder, or drop columns in CSV data
CSV Validator with Schema
Validate CSV data against column type definitions
SQL Identifier Caser
Convert SQL identifiers between snake, camel, and Pascal case
Column Extract
Pull the Nth whitespace-delimited column from each line
AI / Modern Dev Tools
5 tools available
Token Counter
Estimate token count for OpenAI and Anthropic models
Prompt Template Renderer
Render prompt templates with variable substitution
Markdown → Slack/Discord
Convert Markdown to Slack mrkdwn or Discord formatting
Embedding Distance Calculator
Calculate cosine similarity between two text embedding vectors
Markdown → Slack mrkdwn
Convert GitHub-flavor markdown to Slack's mrkdwn
Fun / Niche Tools
21 tools available
Emoji / Unicode Lookup
Search emoji by name and show Unicode codepoints
NATO Phonetic Alphabet
Convert text to NATO phonetic alphabet spelling
Morse Code ↔ Text
Convert text to Morse code and back
Roman Numeral Converter
Convert between Roman numerals and decimal numbers
Number → Words
Convert numbers to written English words
Leet Speak ↔ Plain
Convert text to/from 1337 speak
Slug Generator
Generate URL-friendly slugs from text
Zero-Width Character Detector
Find and highlight invisible zero-width characters in text
Smart Quotes Fixer
Replace curly/smart quotes with straight quotes and vice versa
Text Similarity Scorer
Calculate similarity between two text strings (Levenshtein, Jaccard)
ISBN/IBAN/Luhn Validator
Validate ISBN, IBAN, and credit card numbers (Luhn check)
ASCII Table Reference
Browse the full ASCII table with decimal, hex, and character values
Bionic Reading Converter
Bold the first half of each word for faster reading
Anagram Finder
Check if two strings are anagrams and show letter frequency
Braille ↔ Text
Convert text to Braille Unicode characters and back
Color Blindness Simulator
Simulate how hex colors appear under different color blindness types
User Input Fuzzer
Generate edge-case test inputs for form validation testing
Palindrome Checker
Test if text reads the same forward & backward
Haiku Counter
Check a poem fits the 5-7-5 syllable pattern
Emoji Counter
Count and group emoji present in any text
Zalgo Text
Corrupt normal text with diacritical fury for fun
Developer Utilities Tools
17 tools available
Postman → cURL
Convert Postman collection requests to cURL commands
Git Diff → HTML
Convert unified git diff output to syntax-highlighted HTML
Regex Visualizer
Visualize regex patterns as a readable railroad diagram (text)
Makefile Explainer
Parse a Makefile and explain each target and its dependencies
Shell Script Linter
Check shell scripts for common issues and bad practices
GitHub Actions Visualizer
Parse a GitHub Actions workflow and show job/step dependencies
HAR File Viewer
Parse and summarize HTTP Archive (HAR) files
API Response Mocker
Generate mock API JSON responses from a URL + method description
GraphQL Query Builder
Generate GraphQL queries from a schema definition
OpenAPI → TypeScript
Generate TypeScript interfaces from an OpenAPI schema
Diff Patch Applier
Apply a unified diff patch to source text
GraphQL Introspection → SDL
Convert GraphQL introspection JSON to SDL schema
HTTP Request Replayer
Generate fetch/axios/curl code from raw HTTP request text
cURL → fetch()
Convert a curl command into a JS fetch() call
Git Log Parser
Parse git log output into structured JSON
HTTP → cURL Builder
Build a curl command from method, URL, headers & body fields
SemVer Bump
Compute next major / minor / patch / prerelease
Game Dev Tools
16 tools available
Unity C# Class Generator
Generate Unity MonoBehaviour, ScriptableObject, or Editor scripts from a template
Unity Prefab Inspector
Parse and display Unity .prefab YAML structure in a readable format
Sprite Sheet Calculator
Calculate frame dimensions, UV coords, and animation timing from sprite sheet parameters
Game Math Calculator
Calculate vectors, distances, dot products, lerp, and common game math operations
Game Color Palette Generator
Generate game-ready color palettes with hex, RGB, and normalized float values
Tilemap Data Generator
Generate 2D tilemap arrays for grid-based games from a visual text grid
Damage Formula Calculator
Calculate RPG damage with attack, defense, crit, elemental modifiers
Loot Table Generator
Generate weighted loot drop tables with probability calculations
Shader Uniform Generator
Generate GLSL/HLSL uniform declarations from parameter descriptions
Game Resolution Scaler
Calculate render resolutions, aspect ratios, and DPI for different platforms
FPS ↔ Frame Time Converter
Convert between FPS and milliseconds per frame with performance budgets
Easing Function Generator
Generate easing functions in C#, GLSL, JS with visual curve preview
Game Event System Generator
Generate event bus / observer pattern boilerplate for Unity, Godot, or JS
State Machine Generator
Generate finite state machine code from state/transition definitions
Platformer Physics Calculator
Calculate jump height, gravity, velocity for platformer feel
Asset Bundle Size Estimator
Estimate build sizes for textures, audio, meshes across platforms
Animation / CSS Tools
10 tools available
CSS Keyframe Generator
Generate @keyframes animations from step definitions
Loading Spinner Generator
Generate CSS-only loading spinners and progress indicators
Skeleton Screen Generator
Generate shimmer skeleton placeholder CSS for loading states
Hover Effect Generator
Generate CSS hover effects for buttons, cards, and links
CSS Transition Playground
Build and preview CSS transitions with property, duration, and easing controls
Text Animation Generator
Generate typewriter, fade-in, bounce, and other text animations
Scroll Animation Generator
Generate CSS scroll-triggered animation code with IntersectionObserver
Particle Effect Generator
Generate CSS-only particle animations (confetti, snow, stars)
Gradient Animation Generator
Generate animated gradient backgrounds with CSS
Button Animation Generator
Generate animated button styles with ripple, glow, and morphing effects
Calculators Tools
4 tools available
Basic Calculator
Evaluate math expressions with +, -, *, /, parentheses, and functions
Percentage Calculator
Calculate percentages, discounts, tips, and markup
Unit Converter
Convert length, weight, temperature, speed, and data units
Loan / EMI Calculator
Calculate monthly payments, total interest, and amortization
Audio Tools
4 tools available