The Ultimate Developer Toolkit
Validate, format, convert, and manage your data with lightning-fast, privacy-first utilities built for modern engineers.
All Developer Tools
Formatters
JSON Formatter
Format and validate JSON instantly in your browser without sending data to a server.
JSON Fixer
Automatically repair invalid JSON with missing quotes, trailing commas, etc.
JSON Compressor
Minify and compress JSON data by removing whitespace.
SQL Formatter
Format SQL query keywords and parameters cleanly.
HTML Formatter
Format HTML markup tags and elements with indents.
CSS Formatter
Format CSS rules, blocks, and alignments.
XML Formatter
Format and pretty-print XML documents instantly in the browser.
Markdown to HTML Converter
Write markdown and compile to HTML strings with instant preview.
Markdown to PDF Converter
Convert and compile Markdown documents to print layouts.
Validators
Compare and Diff
Developer Utilities
Character Count
Count characters in text, code snippets, and pasted content.
Word Count
Count words and estimate content length for notes, docs, and snippets.
JSON Converter
Convert JSON to YAML instantly in the browser.
JSON Path
Query and extract data using JSONPath expressions.
JSON Schema Generator
Generate JSON Schema from your JSON data.
Base64 Encoder
Encode text strings into Base64 format locally.
Base64 Decoder
Decode Base64 strings back to plain text locally.
URL Encoder
Encode URL query parameters and paths securely.
URL Decoder
Decode URL-encoded parameters back into human-readable text.
JWT Decoder
Decode and inspect the payload of your JSON Web Tokens locally.
MD5 Hash Generator
Generate MD5 cryptographic hashes from text payloads.
SHA-256 Hash Generator
Generate SHA-256 cryptographic hashes from text payloads.
CSV to JSON
Convert CSV records to JSON array payloads.
JSON to CSV
Convert JSON array data to CSV records.
YAML to JSON
Convert YAML payload configurations to JSON.
XML to JSON
Convert XML data payloads to JSON.
JSON to XML
Convert JSON objects to XML nodes.
UUID Generator
Generate random, cryptographic v4 UUID tokens.
Epoch Converter
Convert Unix epoch timestamps to human-readable dates.
RegEx Tester
Test and match regular expressions against text data.
Hex Encoder
Encode text strings into hexadecimal format instantly.
Hex Decoder
Decode hexadecimal strings back to plain text instantly.
Binary Encoder
Encode text strings into binary format (0s and 1s) instantly.
Binary Decoder
Decode binary string representations back to plain text instantly.
HTML Entity Encoder
Encode special characters in HTML text to safe HTML entities.
HTML Entity Decoder
Decode HTML entities back to their original characters.
SHA-512 Hash Generator
Generate SHA-512 cryptographic hashes from text payloads.
Case Converter
Convert text between camelCase, kebab-case, snake_case, PascalCase, UPPERCASE, and lowercase.
Lorem Ipsum Generator
Generate custom placeholder text paragraphs for layouts and designs.
Base64 File to Data URL
Convert local files or images to Base64 Data URL strings locally.
URL Parser & Query Splitter
Parse URL strings and extract host, path, and query parameters cleanly.
cURL to Code Converter
Convert cURL commands to fetch, axios, and python code snippets.
Cron Expression Descriptor
Describe crontab expressions in plain, easy-to-read English.
CSS Grid & Flexbox Playground
Generate CSS grids, flexboxes, and layouts with interactive previews.
Color Contrast Checker
Verify color contrast ratio score under WCAG AA/AAA guidelines.
String Slugifier
Convert text strings to clean, URL-safe alphanumeric slugs.
XKCD Passphrase Generator
Generate secure, memorable word-list passwords (XKCD style).
RegEx Replacer
Match and replace text content using regular expressions.
JSON to TOML Converter
Convert JSON configurations to TOML files instantly.
TOML to JSON Converter
Convert TOML configurations to JSON documents cleanly.
JSON Query Filter
Filter and transform JSON data arrays using lightweight query expressions.
Base64 Image Decoder
Preview and download images from Base64 Data URL strings.
SHA-3 Hash Generator
Compute secure SHA-3 cryptographic hashes from text.
HMAC Generator
Generate Keyed-Hash Message Authentication Codes locally.
Bcrypt Hash Generator
Generate and verify Bcrypt password hashes for auth systems.
Morse Code Converter
Translate text to Morse code signals and decode them back.
ROT13 Cipher
Rotate letters by 13 spaces for simple obfuscation.
Text Line Sorter
Sort lines of text alphabetically or by length.
Duplicate Lines Remover
Filter out duplicate rows from text blocks instantly.
Empty Lines Remover
Strip out empty or blank lines from text payloads.
Text Line Reverser
Reverse the ordering sequence of lines in a text document.
Find & Replace Text
Search and replace words or patterns in text snippets.
Strip HTML Tags
Remove all HTML tags from markup to extract raw plain text.
Strip Markdown
Remove markdown notation symbols to output plain raw text.
Leet Speak Generator
Translate text characters to lookalike numbers (1337 speak).
String Randomizer
Scramble and randomize order of characters in a string.
Text Diff Viewer
Compare two text snippets side-by-side to highlight insertions and deletions.
JavaScript Beautifier & Minifier
Format or minify JavaScript source code files.
CSS Minifier
Compress CSS stylesheets by removing whitespace.
HTML Minifier
Compress HTML markup code for faster network transmission.
ULID Generator
Generate Lexicographically Sortable Unique Identifiers (ULIDs).
NanoID Generator
Generate secure, compact NanoID strings.
Secure Password Generator
Generate strong passwords with symbols, numbers, and custom lengths.
QR Code Generator
Generate QR code symbols from links and text locally.
Barcode Generator
Generate standard EAN, Code 39, and Code 128 barcodes.
Fake User Profile Generator
Generate dummy identities, names, and profile information.
Fake Credit Card Generator
Generate dummy credit card numbers for integration sandbox testing.
CSS Box Shadow Generator
Interactively design and output CSS box-shadow code blocks.
CSS Gradient Generator
Interactively design linear and radial CSS background gradients.
SVG Path Builder
Draw coordinate paths visually and generate clean SVG nodes.
Length Converter
Convert measurements between meters, feet, miles, inches, and yards.
Weight Converter
Convert weights between grams, kilograms, pounds, and ounces.
Temperature Converter
Convert values between Celsius, Fahrenheit, and Kelvin scales.
Volume Converter
Convert volume between liters, milliliters, gallons, and cups.
Speed Converter
Convert speed values between m/s, km/h, mph, and knots.
Area Converter
Convert values between square meters, square feet, acres, and hectares.
Time Converter
Convert durations between seconds, minutes, hours, days, and weeks.
Base Converter
Convert numbers across arbitrary base formats from binary to base 36.
Base Math Calculator
Perform arithmetic operations directly on binary, octal, or hex numbers.
Percentage Calculator
Compute standard percentages, percentage growths, and cuts.
IP Subnet Calculator
Identify network classes, subnet hosts, and CIDR ranges.
IPv4 to IPv6 Converter
Convert standard IPv4 network addresses to IPv6 notations.
User Agent Parser
Parse HTTP User-Agent strings to extract browser, OS, and CPU model detail metadata.
HTTP Status Codes Reference
Lookup definitions and descriptions of standard HTTP status codes.
MIME Types Lookup
Lookup MIME types and standard content-type definitions for file extensions.
Port Reference Dictionary
Lookup allocations and standard usage protocols for TCP/UDP ports.
DNS Records Checker
Check domain names system records zones locally.
HTML Head Tags Generator
Generate SEO-optimized HTML header tags, title, and open-graph properties.
CSS Border Radius Generator
Interactively design and output CSS border-radius curves.
SVG Optimizer
Compress and clean up SVG nodes for layout embedding.
Aspect Ratio Calculator
Enter width and height to calculate the exact dimension aspect ratio.
Color Palette Generator
Generate matching, cohesive CSS hex color palettes from a base color.
CSS Glassmorphism Builder
Design and output translucent, blurred-backdrop glassmorphic CSS code.
Base64 Font Loader
Upload web-fonts and output base64 data strings for CSS embedding.
CSS Triangle Generator
Generate border-based CSS shapes and triangles interactively.
Emoji Unicode Lookup
Lookup hexadecimal unicode code-points and values for standard emojis.
ASCII Art Generator
Render text words as large, stylized block ASCII art patterns.
HTML Entities Escaper
Escape or unescape special characters to standard HTML entities.
Pomodoro Timer
A customizable Pomodoro productivity timer to manage focus sessions and breaks.