Developer Tools
Format JSON, encode Base64, test regex, and more dev utilities.
JSON Formatter
Format, validate, and minify JSON with syntax highlighting.
Base64 Encoder/Decoder
Encode and decode Base64 for text and files.
URL Encoder/Decoder
Encode and decode URLs and URI components.
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512 hashes from text.
Regex Tester
Test regular expressions with live highlighting and match details.
Lorem Ipsum Generator
Generate placeholder text by paragraphs, sentences, or words.
Markdown to HTML
Convert Markdown to HTML with live preview.
HTML to Markdown
Convert HTML to clean Markdown: all elements supported.
CSS Formatter
Format, beautify, and minify CSS with custom indentation.
YAML Formatter
Format, validate, and beautify YAML with error details.
HTML Formatter
Format and beautify HTML with custom indentation.
SQL Formatter
Format SQL queries with uppercase keywords and proper indentation.
XML Formatter
Format, beautify, and minify XML with validation.
JS Formatter
Format and beautify JavaScript with proper indentation.
TypeScript to JS Converter
Convert TypeScript to JavaScript: strip type annotations.
Color System Generator
Generate a full color system from one color.
Regex Explainer
Understand regular expressions: tokenize and explain each part.
.gitignore Generator
Generate .gitignore files for 30+ languages, frameworks, and tools.
JSON to TypeScript
Convert JSON objects to TypeScript interfaces or types instantly.
JWT Decoder
Decode and inspect JWT tokens: header, payload, and signature.
UUID Generator
Generate UUID v4 values: batch mode, multiple formats.
Text Diff
Compare two texts side by side: line-by-line diff with colors.
Box Shadow Generator
Create CSS box-shadow with live preview and copy.
CSS Grid Generator
Build CSS Grid layouts visually: generate code instantly.
CSS Flexbox Generator
Build Flexbox layouts visually: all properties.
Border Radius Generator
Create CSS border-radius with live preview and layers.
CSS Units Converter
Convert between CSS units: px, em, rem, %, vh, vw, pt and more.
URL Parser
Parse URL into components: protocol, host, path, query params, fragment.
User Agent Parser
Parse browser User-Agent string: OS, browser, device, engine info.
MIME Type Lookup
Look up MIME types by file extension or vice versa: 50+ types.
HTTP Status Codes
Searchable reference of HTTP status codes with descriptions.
CSS Minifier
Minify CSS code: remove comments, whitespace, shorten values.
Number Base Converter
Convert numbers between any bases (2-36): binary, octal, decimal, hex, and more.
Binary to Decimal
Convert binary (base-2) numbers to decimal (base-10) instantly.
Decimal to Binary
Convert decimal numbers to binary with configurable bit width (8, 16, 32-bit).
Hex to Decimal
Convert hexadecimal (base-16) numbers to decimal format.
Decimal to Hex
Convert decimal numbers to hexadecimal (base-16) format.
JSON to XML
Convert JSON data to XML format with custom root element and indentation.
XML to JSON
Convert XML documents to JSON format with automatic parsing.
CSV to XML
Convert CSV data to XML format with custom row tags and delimiters.
XML to CSV
Convert XML data to CSV format with download support.
HTML Entity Encoder/Decoder
Encode text to HTML entities and decode HTML entities back to text.
Unicode Encoder/Decoder
Convert text to Unicode escape sequences (\uXXXX) and back.
Text to Binary / Binary to Text
Convert text to binary code and binary code back to text. Supports 7-bit and 8-bit.
Punycode Converter
Convert between Unicode domain names and Punycode (IDN encoding).
Binary to Hex
Convert binary (base-2) numbers to hexadecimal (base-16) format.
Hex to Binary
Convert hexadecimal (base-16) numbers to binary with configurable bit width.
Number to Words
Convert numbers to English words: supports negatives, decimals, up to trillions.
Scientific Notation Converter
Convert between decimal numbers and scientific notation with both formats.
Octal Converter
Convert between octal (base-8) and decimal: includes Unix permission reference.
TOML to JSON
Convert TOML configuration files to JSON format.
JSON to TOML
Convert JSON data to TOML configuration format.
YAML to JSON
Convert YAML to JSON format using js-yaml library.
Base32 Encoder/Decoder
Encode and decode Base32: used in TOTP, IPFS, and other systems.
Text to Hex / Hex to Text
Convert text to hexadecimal and back. Useful for debugging and encoding.
ROT13 Encoder/Decoder
Encode and decode text with ROT13 and custom ROT-N cipher shifts.
Quoted-Printable Encoder/Decoder
Encode and decode Quoted-Printable format used in email encoding.
Seconds to HH:MM:SS
Convert seconds to human-readable time format with days, hours, minutes breakdown.
HH:MM:SS to Seconds
Convert time formats (HH:MM:SS, 2h 30m 15s) to total seconds.
HTML to Text
Strip HTML tags and convert to plain text: preserves structure and list items.
Workflow Builder
Chain multiple tools into a pipeline: format, convert, encode, and hash in one flow.
API Request Tester
Test API endpoints client-side with headers, params, and body payload configurations.
cURL Builder
Visually construct single-line or multi-line cURL queries with headers and body parameters.
cURL Converter
Parse raw cURL requests and generate Fetch, Axios, Python, Go, and Rust snippets.
JSON Path Tester
Query and extract data from JSON objects with live JSONPath expressions.
JSON Schema Validator
Validate JSON instance data against JSON Schema Draft-07 rules offline.
GraphQL Formatter & Tester
Format GraphQL query strings, configure variables, and run API requests.
Cron Expression Generator
Visually build cron schedules and explain expressions in plain language.
Dockerfile Generator
Generate optimized Dockerfiles for Node.js, Python, Go, PHP, and Java.
Nginx Config Generator
Generate Nginx server configuration files with proxy, SSL, and compression.
.htaccess Generator
Generate Apache .htaccess files with redirects, security, and caching rules.
OpenAPI & Swagger Viewer
View and interact with OpenAPI specification files in JSON or YAML offline.
ENV File Parser & Converter
Parse .env files, hide/mask secret values, and export to JSON, Shell, or YAML.
JWT Verifier
Decode and inspect JWT headers, payloads, and verify HMAC signatures.
HMAC Hash Generator
Compute cryptographic HMAC hashes client-side with SHA-1, SHA-256, and SHA-512.
UUID Validator & Extractor
Validate UUID formats and decode version metadata single or in bulk.
ULID Generator & Decoder
Generate sortable ULIDs and decode creation timestamps offline.
NanoID Generator
Create secure unique string IDs with custom alphabets and lengths.
QR Payload Decoder
Scan and decode QR codes from files, camera, or clipboard with Wi-Fi parsing.
HTML / CSS / JS Sandbox
Playground to write HTML, CSS, and JS with real-time sandboxed preview.
CSS Specificity Calculator
Calculate specificity score (ID, class, element) and override comparisons.