Developer & Coding Tools
JSON formatters, Base64, URL encode/decode, JWT inspectors, hashes, CSS generators, and developer utilities. All tools run 100% in your browser with zero server uploads and instant processing.
Image Steganography Studio (Hide Secret Text in Photos)
Conceal and extract encrypted secret messages within image pixels using LSB encoding
PGP & Asymmetric Encryption Studio
Generate RSA-2048/4096 keypairs, encrypt and decrypt secret messages 100% in-browser via Web Crypto
App Icon & Asset Generator (iOS & Android)
Upload a 1024x1024 icon and generate all Xcode and Android mipmap resolutions into a ready-to-deploy ZIP
MAC Address Lookup & OUI Vendor Inspector
Identify NIC hardware manufacturers from IEEE OUIs, format MAC addresses across Unix/Windows/Cisco, and generate IPv6 modified EUI-64 link-local addresses
Interactive LaTeX Equation Editor & Math Palette
Create, edit, and render scientific formulas with visual symbol palettes, live KaTeX typesetting, MathML export, and high-resolution PNG downloads
IEEE 754 Floating-Point & Binary Studio
Inspect and convert 32-bit single and 64-bit double precision floats with interactive bit flippers, hex values, and step-by-step mathematical derivation
JWT Debugger & Security Token Inspector
Decode, inspect claims, verify HMAC-SHA256 signatures, and check token expiry 100% client-side with native Web Crypto API and zero server uploads
Cron Expression Schedule Visualizer & Guru
Translate 5-field cron syntax into plain English, inspect individual time parameters, and preview the next 8 execution timestamps in your local timezone
IP Subnet & CIDR Network Calculator Studio
Compute network addresses, usable host ranges, broadcast IPs, wildcard masks, and binary layouts 100% in-browser
RegEx Visualizer & Railroad Diagram Studio
Deconstruct regular expressions into interactive visual railway state diagrams and test matches with zero server lag
CSS Cubic-Bezier Curve & Animation Studio
Design custom cubic-bezier easing curves, simulate spring physics, and generate production CSS transitions & keyframes
Private HAR Waterfall Analyzer & HTTP Archive Inspector
Analyze HTTP Archive (.har) files with interactive waterfall timelines, TTFB metrics, and client-side token redacting
RFC 9562 UUIDv7 & ULID Sortable ID Generator & Timestamp Decoder
Generate chronologically sortable UUIDv7 and Crockford Base32 ULIDs with millisecond timestamp decoding and WebCrypto security
Multi-Dialect SQL Beautifier, Formatter & Minifier Studio
Format, beautify, and minify SQL queries across PostgreSQL, MySQL, SQLite, T-SQL, Snowflake, and BigQuery dialects
Universal JSON to TypeScript, Pydantic, Go & Rust Type Engine
Convert JSON payloads into TypeScript interfaces, Python Pydantic V2 models, Go structs, and Rust Serde types
JSON Diff & Semantic Tree Comparator Studio
Visual side-by-side JSON semantic tree diff, structural comparisons, added/removed/mutated keys detector with 100% client-side privacy
SVG Path Optimizer & Visualizer Studio
Inspect, preview, minify, and strip redundant coordinate decimals from raw SVG path data with sub-pixel precision control
Bcrypt Hash Generator & Work Factor Benchmark Studio
Generate RFC-compliant Bcrypt hashes, verify work factors (cost 6-14), inspect salt/digest components, and benchmark client CPU hashing power
JSON Formatter, Validator & Minifier
Format, validate, beautify, and minify JSON with real-time error detection
Base64 Encoder & Decoder
Encode text and files to Base64 or decode Base64 strings to plain text
JWT Decoder & Inspector
Decode and inspect JSON Web Tokens locally with expiration warnings
URL Encoder & Decoder
Encode special characters for URL query parameters or decode percent-encoded URLs
Cryptographic Hash Generator
Generate SHA-256, SHA-512, SHA-1, and MD5 cryptographic hashes from text
Color Format Converter (HEX, RGB, HSL, CMYK)
Convert colors between HEX, RGB, HSL, and CMYK with live preview and contrast rating
Number Base Converter (Binary, Decimal, Hex, Octal)
Convert numbers between Binary, Decimal, Hexadecimal, and Octal bases
UUID / GUID Generator (v4)
Generate cryptographically random UUID v4 identifiers in single or bulk batches
Regular Expression (Regex) Tester
Test, debug, and validate JavaScript regular expressions with real-time match highlighting
HTML & CSS Minifier
Compress and minify HTML and CSS stylesheets to reduce bandwidth and speed up page loading
WCAG Color Contrast & Accessibility Checker
Calculate color contrast ratios and test WCAG 2.1 AA/AAA compliance for text, UI components, and icons
SQL Query Formatter & Beautifier
Format, indent, and clean complex SQL queries with keyword capitalization
Cron Expression Parser & Explainer
Translate 5-part cron expressions into plain English schedules and runtimes
HTML Entity Encoder & Decoder
Encode special characters to HTML entities or decode entities back to readable text
UUID / GUID Batch Generator
Generate 1 to 1000 cryptographically secure UUID v4 identifiers with custom formatting
HMAC Cryptographic Signature Generator
Compute HMAC-SHA256, HMAC-SHA512, and HMAC-SHA1 signatures using Web Crypto
CSS Box Shadow & Glow Generator
Interactive multi-layer box shadow and neon glow builder with live preview
CSS Glassmorphism & Frosted Glass Maker
Interactive frosted glass card builder with background blur and border sheen
CSS Advanced Border Radius / Blob Generator
Interactive 8-value border-radius builder for organic blob, pill, and badge shapes
Markdown Table Builder & Formatter
Visual spreadsheet editor to create, align, and format GitHub Markdown and CSV tables
Password Strength & Entropy Analyzer
Calculate cryptographic Shannon entropy bits and GPU brute-force crack time estimates
YAML to JSON & JSON to YAML Converter
Convert between YAML and JSON formats with two-way real-time syntax validation
XML Formatter, Minifier & Validator
Format, beautify, minify, and validate XML documents with syntax error highlighting
Chmod Permissions Calculator & Generator
Interactive visual Unix permissions calculator for octal numbers, symbolic strings, and commands
IPv4 Subnet & CIDR Mask Calculator
Calculate network address, broadcast, usable host range, and wildcard masks with bitwise precision
Lorem Ipsum Placeholder Text Generator
Generate dummy Latin placeholder text by paragraphs, sentences, words, or HTML lists
JSON to TypeScript Interface & Type Converter
Convert JSON objects into strongly-typed TypeScript interfaces with nested type inference
Interactive CSS Clip-Path Polygon Generator
Visual canvas with draggable handles to create custom CSS clip-path polygon shapes
Interactive SVG Path Visualizer & Editor
Inspect, visualize, and tweak SVG path d attributes with real-time coordinate preview
Base64 to Image & File Decoder
Decode Base64 strings and Data URIs into downloadable PNG, JPEG, WebP, and SVG images
Interactive CSS Gradient Generator
Visual linear and radial CSS gradient builder with interactive angle dial and color stops
Interactive Regex Visualizer & Token Explainer
Deconstruct regular expressions into interactive color-coded syntax tokens with live string matching
JSON Schema Validator & Tester
Validate JSON data payloads against JSON Schema definitions in-browser with specific error pointers
Interactive CSS Flexbox Playground
Visual interactive sandbox to experiment with CSS Flexbox alignment, direction, wrap, and gap
File Checksum & SHA-256 Hash Calculator
Calculate SHA-256, SHA-512, and SHA-1 checksums for any file in-browser using Web Crypto
JWT (JSON Web Token) Debugger & Decoder
Client-side JWT token decoder to inspect header, payload claims, and token expiration dates
cURL to Fetch, Axios & Python Requests Converter
Convert raw terminal cURL commands into clean JavaScript fetch(), axios, and Python requests
Interactive CSS Grid Generator & Code Builder
Visual CSS Grid builder to configure columns, rows, and gaps with live responsive preview
Salted Password Hash & Benchmark Generator
Generate cryptographically secure salted password hashes with PBKDF2 iterations and timing benchmarks
Interactive Regex Cheat Sheet & Live Sandbox
Interactive regex syntax reference guide with anchors, character classes, quantifiers, and live sandbox tester
SQL to MongoDB Query Translator
Translate relational SQL SELECT queries into MongoDB NoSQL find(), sort(), and limit() shell syntax
IPv6 Address Expander & Compressor
Compress and expand IPv6 addresses according to RFC 5952 with address type classification
Interactive CSS Mesh & Aura Gradient Generator
Create modern fluid multi-color CSS radial mesh aura gradient backgrounds with copyable code
JWT Signer & Token Generator (HMAC-SHA256)
Create and cryptographically sign valid JSON Web Tokens in browser with custom secret keys
OpenGraph (OG) & Social Card Preview Generator
Preview social sharing cards for Google, Twitter/X, Facebook, and Discord with copyable meta tags
Cron Expression Generator & Schedule Explainer
Interactive visual cron schedule builder with human-readable plain English schedule translations
SVG to PNG High-Res Vector Rasterizer
Convert vector SVG code or files into high-resolution PNG images up to 8K on HTML5 canvas
URL Query String Parser & Parameter Builder
Deconstruct complex URLs, inspect search parameters, and interactively build query strings
AES-GCM 256-Bit Text Encryptor & Decryptor
Encrypt and decrypt confidential text with military-grade AES-GCM 256 and PBKDF2 password key derivation
WCAG Color Contrast Checker (AA & AAA Standards)
Verify accessibility contrast ratios between text and background colors according to WCAG 2.1 specifications
Code to Image / Code Snippet Screenshot Generator
Create aesthetic code snippet screenshots with macOS window styling, gradient aura backdrops, and PNG export
HEX to RGB & RGB to HEX Color Code Converter
Convert colors between HEX, RGB, RGBA, HSL, and CMYK formats with instant 1-click clipboard copy
JSON Validator & Error Finder
Validate JSON data online with line and column syntax error detection
JSON Minifier & Compressor
Compress and minify JSON data by stripping unnecessary whitespace
JSON to CSV Converter
Convert JSON arrays of objects into formatted CSV spreadsheets
CSV to JSON Converter
Transform CSV spreadsheet data into structured JSON objects or 2D arrays
XML Validator & Syntax Checker
Validate XML files and pinpoint unclosed tags or malformed XML syntax
YAML Formatter & Beautifier
Clean, format, and align indentation in YAML configuration files
HTML Formatter & Beautifier
Format and beautify messy HTML code with clean tag indentation
HTML Beautifier & Code Cleaner
Clean, structure, and beautify messy HTML web pages and templates
CSS Formatter & Beautifier
Format and beautify CSS stylesheets with clean selector rule indentation
JavaScript Formatter & Beautifier
Beautify and format JavaScript code with structured bracket indentation
HTML Minifier & Compressor
Minify and compress HTML markup to reduce page weight and load times
CSS Minifier & Compressor
Minify CSS stylesheets by stripping comments, whitespace, and semicolons
JavaScript Minifier & Compressor
Minify JavaScript code online by removing comments and unneeded whitespace
Regex Pattern Generator & Cheatsheet
Generate pre-built regular expression patterns for emails, URLs, IP addresses, and dates
Regex String Escaper
Escape special regex metacharacters in literal strings for dynamic RegExp construction
Base64 Encoder (UTF-8)
Encode text, JSON, and international UTF-8 strings into Base64 format
Base64 Decoder (UTF-8)
Decode Base64 strings back to plain text, JSON, or UTF-8 characters
HTML Entity Encoder
Encode special characters into HTML entities to prevent XSS vulnerabilities
HTML Entity Decoder
Decode HTML entities and numerical character references back to plain text
Unix Timestamp & Epoch Converter
Convert Unix epoch seconds and milliseconds to UTC, ISO 8601, and local time
Cron Expression Generator & Builder
Generate and build 5-part cron schedule expressions with human explanations
Color Code Converter (HEX, RGB, HSL, CMYK)
Convert colors between HEX, RGB, RGBA, HSL, and CMYK formats online
Markdown to HTML Converter & Previewer
Convert raw Markdown to styled HTML with instant side-by-side preview
Diff Checker & Code Comparator
Compare two snippets of code or text line-by-line with color-coded diff markers
SQL Query & Schema Generator
Design table structures and generate ANSI, Postgres, MySQL, and SQLite queries
Git Command & Workflow Generator
Generate accurate Git terminal commands for committing, branching, merging, and undoing
JSON to XML Converter
Convert JSON objects and arrays into structured XML documents online
XML to JSON Converter
Convert XML files and nodes into structured JSON objects online
CSV to XML Converter
Convert CSV spreadsheets into structured XML records online
XML to CSV Converter
Convert XML documents and feeds to flat CSV spreadsheets
Excel to XML Converter
Convert Excel workbooks (.xlsx, .xls) to structured XML files
XML to Excel Converter
Convert XML files into Microsoft Excel spreadsheets (.xlsx)
Universal Web Font Converter
Convert TTF, OTF, WOFF, and WOFF2 fonts with live typography tester and @font-face CSS generator
TTF to WOFF Converter
Convert TrueType (TTF) fonts to compressed WOFF web fonts with live preview
TTF to WOFF2 Converter
Convert TTF fonts to modern ultra-compressed WOFF2 for maximum website speed
OTF to TTF Converter
Convert OpenType (OTF) fonts to TrueType (TTF) format for universal OS compatibility
WOFF to TTF Converter
Convert WOFF web fonts back to installable desktop TTF fonts
WOFF2 to TTF Converter
Convert WOFF2 web fonts to installable TTF TrueType fonts in seconds
Wavefront OBJ 3D Model Repair & Sanitizer
Repair invalid vertex indices, triangulate n-gons, and clean corrupted OBJ 3D models
STL to OBJ 3D Model Converter
Convert 3D printing STL mesh files to standard Wavefront OBJ 3D models in browser
OBJ to STL 3D Printing Converter
Convert Wavefront OBJ 3D models to binary STL files ready for 3D printing slicers
VLSM Subnet Architect & CIDR Visualizer
Variable Length Subnet Masking (VLSM) hierarchical divider, IP ranges & Cisco IOS exports
AI Prompt Token Counter & LLM Cost Studio
Estimate prompt tokens, context utilization & API pricing across Claude, GPT-4o, Gemini & DeepSeek
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