Developer Tools

HTTP Mock Response Builder

Build mock HTTP response payloads with status code, headers, body, and optional simulated delay.

API Payload Validator

Validate JSON API payloads by checking structure, types, consistency, and common patterns like email fields.

Load Testing Calculator

Calculate load test metrics including total requests per second, bandwidth, and concurrent connections.

Test Coverage Estimator

Calculate line, branch, and function coverage percentages with a quality rating from coverage metrics.

Unit Test Boilerplate Generator

Generate unit test boilerplate for Jest, Vitest, Mocha, or pytest with function name and parameters.

Postman Collection Formatter

Pretty-print a Postman collection JSON file with request and folder counts for quick inspection.

cURL Command Builder

Build cURL commands with URL, method, headers, body, and options like verbose or insecure mode.

HTTP Request Builder

Build a formatted raw HTTP request message with method, URL, headers, and body in standard format.

Postman to cURL Converter

Convert Postman collection JSON exports to cURL commands for terminal use.

GraphQL Query Builder

Build GraphQL queries and mutations with fields, arguments, and variables interactively.

REST API Checklist

Generate a comprehensive REST API design checklist covering naming, versioning, errors, and security.

API Rate Limit Calculator

Calculate API rate limits, request quotas, and throttling windows from your parameters.

cURL to Code Converter

Convert curl commands to JavaScript fetch, axios, Python requests, or PHP cURL code.

API Response Formatter

Format and pretty-print JSON API responses with configurable indentation and optional key sorting.

User Agent Parser

Parse User-Agent strings to identify browser, engine, operating system, and device type.

Accept Header Parser

Parse HTTP Accept headers into prioritized MIME type list with quality values.

MIME Type Lookup

Look up MIME types by file extension or find extensions for a MIME type. Covers 100+ common formats.

Bitwise Calculator

Perform bitwise operations (AND, OR, XOR, NOT, shifts) on integers with binary and hex output.

Byte ↔ Bit Converter

Convert between bytes and bits bidirectionally with simple multiplication or division by 8.

File Size Converter

Convert file sizes between bytes, KB, MB, GB, TB, and PB using binary (1024-based) units.

GitHub Actions Generator

Generate GitHub Actions workflow YAML for CI/CD pipelines with common build, test, and deploy steps.

CI/CD Pipeline Generator

Generate CI/CD pipeline configs for GitLab CI, CircleCI, Travis CI, and Azure Pipelines.

Code Line Counter

Count total, code, comment, and blank lines in source code with a visual code ratio bar chart.

Code Complexity Estimator

Estimate cyclomatic complexity of code by counting decision points like if, for, while, switch, and logical operators.

Duplicate Code Finder

Find repeated lines and code blocks in source code to identify DRY violations and refactoring opportunities.

Dead Code Detector

Find potentially unused functions and classes by checking if their names appear only once (in the definition) within the file.

Comment Stripper

Remove all comments from source code in JavaScript, Python, HTML, CSS, Shell, and Ruby with optional blank line cleanup.

Code to Flowchart

Generate a text-based flowchart from source code structure, showing control flow, decisions, loops, and returns.

Dependency Tree Viewer

Parse a package.json file and display its dependency tree in a visual hierarchical format.

Import Extractor

Extract all import and require statements from JavaScript or TypeScript source code.

GraphQL Schema Generator

Generate GraphQL type definitions with optional CRUD queries and mutations from a field specification.

TypeScript Interface Generator

Generate TypeScript interfaces and types from JSON samples with recursive type inference for nested objects.

Zod Schema Generator

Generate Zod validation schemas from JSON samples with smart type detection for emails, URLs, and dates.

Mock Data Generator

Generate realistic mock data for users, products, posts, companies, or addresses in JSON or CSV format.

Lorem Ipsum Code Generator

Generate placeholder code in JavaScript, Python, Java, HTML, or CSS style with realistic-looking structure.

Code to Image

Generate a styled HTML code block with line numbers, syntax themes (dark, light, monokai), for embedding or screenshots.

Code Diff Viewer

Compare two code blocks and see additions, deletions, and unchanged lines with an LCS-based diff algorithm.

Color Picker

Enter a hex color and see all format conversions: HEX, RGB, HSL, RGBA, and CSS variable.

HEX to RGB Converter

Convert HEX color codes to RGB values and vice versa.

RGB to HEX Converter

Convert RGB color values to HEX codes and vice versa.

HEX to HSL Converter

Convert HEX color codes to HSL values and vice versa.

HSL to HEX Converter

Convert HSL color values to HEX codes and vice versa.

RGB to HSL Converter

Convert RGB color values to HSL (hue, saturation, lightness) and vice versa.

HSL to RGB Converter

Convert HSL color values to RGB and vice versa.

RGB to CMYK Converter

Convert RGB color values to CMYK (cyan, magenta, yellow, key) for print workflows.

CMYK to RGB Converter

Convert CMYK print color values to RGB screen values and vice versa.

Color Palette Generator

Generate harmonious 5-color palettes from a base color using analogous, complementary, triadic, and other schemes.

Color Contrast Checker

Check WCAG 2.1 color contrast ratio between foreground and background colors for AA and AAA compliance.

Color Blindness Simulator

Simulate how a hex color appears under protanopia, deuteranopia, tritanopia, and achromatopsia.

Color Shades Generator

Generate darker shades of any color by progressively reducing lightness from the base.

Color Tints Generator

Generate lighter tints of any color by progressively increasing lightness from the base.

Complementary Color Finder

Find the complementary (opposite) color on the color wheel for any hex color.

Color Gradient Generator

Generate a smooth color gradient between two hex colors with a customizable number of steps.

Color Name Finder

Find the nearest CSS named color for any hex value using Euclidean distance in RGB space.

Pantone to HEX Converter

Look up approximate HEX equivalents for common Pantone color names and numbers.

RAL to HEX Converter

Look up approximate HEX equivalents for common RAL color numbers.

Color Mixer

Mix two hex colors together by averaging their RGB values to produce a blended color.

INI to JSON Converter

Convert INI configuration files to JSON with section-based object nesting.

.properties to JSON

Convert Java .properties files to JSON with key-value mapping.

JSON to .properties

Convert a JSON object to Java .properties format with dot-notation keys.

Env File Parser

Parse .env file contents into a clean key-value table with counts for variables, comments, and blank lines.

Env to JSON Converter

Convert .env key=value lines to a JSON object, or reverse to go from JSON back to .env format.

JSON to Env Converter

Convert a flat JSON object to .env key=value format, or reverse to convert .env back to JSON.

Config Validator

Validate JSON or YAML configuration structure checking for syntax errors, duplicate keys, and style issues.

.env File Generator

Generate .env files with common variables for frameworks like Next.js, Django, Rails, and more.

Environment Variable Manager

Parse, compare, and merge .env files — find missing variables, duplicates, and differences.

Config File Comparator

Compare two configuration files (JSON, YAML-like, TOML-like, INI) and show differences.

Cron Expression Generator

Build cron expressions with an interactive form or presets, with human-readable explanations and usage examples.

Cron Expression Explainer

Parse cron expressions and explain each field in plain English with a complete human-readable schedule description.

CSS Formatter

Format and beautify minified or messy CSS with proper indentation and line breaks.

CSS Validator

Validate CSS for syntax errors, missing semicolons, unmatched braces, and unknown properties.

CSS to SCSS Converter

Convert plain CSS to SCSS with nesting and automatic variable extraction for colors.

CSS to Tailwind Converter

Map CSS property-value pairs to Tailwind CSS utility classes with unmapped property fallback.

SCSS to CSS Converter

Flatten SCSS nesting and resolve variables to produce plain CSS output.

LESS to CSS Converter

Flatten LESS nesting and resolve @variables to produce plain CSS output.

CSS Box Shadow Generator

Generate CSS box-shadow with customizable offset, blur, spread, color, and inset options.

CSS Text Shadow Generator

Generate CSS text-shadow with X/Y offset, blur radius, and color controls.

CSS Border Radius Generator

Generate CSS border-radius with individual corner controls for custom rounded shapes.

CSS Gradient Generator

Generate CSS linear or radial gradients with customizable colors, angle, and stops.

CSS Flexbox Generator

Generate CSS flexbox layout with direction, alignment, wrapping, and gap controls.

CSS Grid Generator

Generate CSS Grid layout with customizable columns, rows, gaps, and sizing.

CSS Animation Generator

Generate CSS @keyframes animations from presets like fade, slide, scale, bounce, and shake.

CSS Triangle Generator

Generate pure CSS triangles using the border trick with direction, size, and color controls.

CSS Button Generator

Generate styled CSS button with background, padding, radius, shadow, and hover effects.

CSS Loader Generator

Generate pure CSS loading animations: spinner, dots, ring, pulse, and bars.

CSS Variable Extractor

Extract CSS custom properties (--variables) from a stylesheet and find unused or undefined references.

CSS Specificity Calculator

Calculate CSS specificity scores for selectors and compare their weights.

CSS Unit Converter

Convert between CSS units: px, rem, em, pt, cm, mm, in, vw, and vh.

Tailwind Class Generator

Generate Tailwind CSS class strings for common UI components like cards, badges, alerts, and inputs.

Bootstrap Grid Generator

Generate Bootstrap grid HTML with customizable columns, breakpoints, gutters, and item count.

CSV to XML Converter

Convert CSV data to well-formed XML with customizable root and row element names.

CSV to HTML Table

Convert CSV data to a styled HTML table with headers and bordered cells.

CSV to SQL INSERT

Generate SQL INSERT statements from CSV data with automatic type detection.

CSV to Excel (Tab-Delimited)

Convert CSV to tab-delimited format ready to paste into Excel or Google Sheets.

YAML to XML Converter

Convert YAML key-value data to well-formed XML with proper nesting and escaping.

YAML to TOML Converter

Convert YAML configuration to TOML format with proper section headers.

TOML to YAML Converter

Convert TOML configuration files to YAML format with proper indentation.

Markdown to Plain Text

Strip all Markdown formatting to produce clean plain text.

SQL INSERT to JSON

Parse SQL INSERT statements and convert them to a JSON array of objects.

SQL INSERT to CSV

Parse SQL INSERT statements and export the data as CSV with headers.

TSV to CSV Converter

Convert tab-separated values to comma-separated CSV with proper quoting.

CSV to TSV Converter

Convert comma-separated CSV to tab-separated TSV format.

Excel (Tab-Delimited) to JSON

Convert tab-delimited data (pasted from Excel) to a JSON array of objects.

SQL Query Formatter

Pretty-print SQL queries with keyword highlighting, indentation, and configurable keyword casing.

SQL to MongoDB Converter

Convert SQL SELECT queries to MongoDB find() syntax with filter, projection, sort, and limit translation.

SQL to Prisma Schema

Convert SQL CREATE TABLE statements to Prisma schema models with inferred types, @id, @unique, and @default attributes.

SQL Schema Visualizer

Parse SQL CREATE TABLE statements and render a text-based schema diagram showing columns, types, and constraints.

ERD Generator

Generate text-based and Mermaid ER diagrams from SQL CREATE TABLE statements with automatic relationship detection.

Fake Data Generator (SQL)

Generate realistic SQL INSERT statements with fake data for names, emails, phones, dates, cities, and more.

Database Schema Comparator

Compare two SQL schemas side by side and identify added, removed, and changed tables and columns.

MySQL to PostgreSQL Converter

Convert MySQL DDL statements to PostgreSQL syntax, translating data types, auto-increment, quoting, and engine clauses.

JSON to SQL CREATE TABLE

Infer SQL column types from a JSON object or array and generate a CREATE TABLE statement automatically.

CSV to SQL INSERT

Convert CSV data with headers into SQL INSERT statements, with automatic type detection for numbers, booleans, and NULLs.

SQL Escape Tool

Escape text for safe inclusion in SQL queries with support for Standard SQL, MySQL, and PostgreSQL escaping styles.

NoSQL Query Formatter

Format MongoDB-style NoSQL queries with pretty-printed JSON objects and separated method chains.

ISO Date Formatter

Convert between ISO 8601 date strings and human-readable format with day names and Unix timestamps.

Date Format Converter

Convert a date string into ISO 8601, US, EU, long, and Unix timestamp formats at once.

QR Code with Logo

Generate a QR code with your logo overlaid in the centre. Error-correction level H means scanners read the code reliably even with up to 30% of its surface covered by the logo.

Docker Command Generator

Generate Docker run, build, and compose commands with ports, volumes, env vars, and networking.

Nginx Config Generator

Generate Nginx server block configurations for static sites, reverse proxies, and SSL setups.

Apache Config Generator

Generate Apache .htaccess and VirtualHost configurations for rewrites, SSL, and headers.

Kubernetes Manifest Generator

Generate Kubernetes YAML manifests for Deployments, Services, Ingress, and ConfigMaps.

README Generator

Generate professional README.md files with project info, features, installation, usage, and contributing sections.

License Generator

Generate open source license files for MIT, Apache 2.0, GPL 3.0, BSD, and ISC with your name and year.

Changelog Generator

Generate Keep a Changelog-formatted entries with Added, Changed, Fixed, and Removed sections.

API Documentation Generator

Generate markdown API documentation for endpoints with parameters, request/response examples, and cURL snippets.

OpenAPI Validator

Validate OpenAPI 3.x and Swagger 2.0 JSON documents for required fields, structure, and common issues.

Swagger to Markdown

Convert OpenAPI/Swagger JSON specifications into clean, readable Markdown API documentation.

Base64 Image Encoder

Convert base64 image data into an HTML img tag with proper data URL formatting and auto-detected MIME type.

Base64 Image Decoder

Extract raw base64 data from HTML img tags or data URLs, with MIME type detection and size estimation.

AES Encrypt / Decrypt (Demo)

Encrypt and decrypt text using a simplified AES-style cipher for demonstration purposes.

XOR Cipher

Encrypt and decrypt text using XOR cipher with a custom key — fully reversible.

YAML Formatter

Reformat YAML with consistent indentation for cleaner, more readable config files.

TOML Formatter

Format TOML files with consistent spacing around equals signs and section grouping.

INI Formatter

Format INI configuration files with consistent key-value spacing and section grouping.

GraphQL Formatter

Format and indent GraphQL queries and mutations for better readability.

Markdown Formatter

Normalize Markdown formatting with consistent headers, list spacing, and horizontal rules.

Dockerfile Formatter

Format Dockerfiles with uppercase instructions, consistent spacing, and stage separation.

Passphrase Generator

Generate memorable passphrases from a word dictionary with configurable length and separators.

API Key Generator

Generate random API keys with customizable length, prefix, and character set.

Secret Key Generator

Generate cryptographic-style secret keys in hex or base64 format at various bit lengths.

JSON Test Data Generator

Generate random JSON test data with realistic names, emails, prices, and dates for common schema types.

UUID Bulk Generator

Generate multiple v4-style UUIDs at once in standard, no-dash, uppercase, or braced format.

OG Image Generator

Generate Open Graph (OG) social share images as SVG with customizable title, description, colors, and branding.

Sitemap XML Generator

Generate valid sitemap.xml from a list of URLs with change frequency, priority, and last-modified date.

.gitignore Generator

Generate .gitignore files for Node.js, Python, Java, Rust, Go, Ruby, C#, and Swift with OS and IDE ignores.

Git Commit Generator

Generate conventional commit messages with type, scope, description, body, breaking changes, and issue references.

SHA-384 Hash Generator

Generate a SHA-384-style hash digest of any text input in the browser.

Bcrypt Format Verifier

Verify if a string is a valid bcrypt hash format and extract its parameters.

Hash Identifier

Identify the type of a hash string by analyzing its format and length.

File Hash Calculator

Calculate multiple hash checksums (CRC32, MD5, SHA-1, SHA-256, SHA-384) for text content.

Text Checksum

Compute a checksum of text using a selectable hash algorithm.

HTML Formatter

Format and indent HTML with customizable indentation (2 spaces, 4 spaces, or tabs).

HTML Minifier

Minify HTML by removing comments, extra whitespace, and unnecessary spaces between tags.

HTML Validator

Validate HTML for tag matching, nesting errors, unclosed tags, and missing alt attributes.

HTML to JSX Converter

Convert HTML to JSX by transforming class→className, for→htmlFor, style strings to objects, and comments.

HTML Color Extractor

Extract all color values (hex, rgb, hsl) from HTML and CSS code.

HTML Meta Tag Extractor

Extract title, meta tags, Open Graph, charset, canonical URL, and favicon from HTML head.

HTML Table Generator

Generate HTML table markup with configurable rows, columns, headers, and styling.

HTML to BBCode Converter

Convert common HTML tags to BBCode equivalents for forum posting.

HTTP Status Code Reference

Complete reference of HTTP status codes with descriptions — 1xx informational through 5xx server errors.

HTTP Header Analyzer

Analyze HTTP headers — categorize security, caching, authentication, and content headers with missing-header warnings.

URL Parser

Parse URLs into components — protocol, hostname, port, pathname, query parameters, and fragment.

URL Builder

Build URLs from components — set protocol, host, port, path, query parameters, and fragment with auto-encoding.

Query String Parser

Parse URL query strings into key-value pairs with URL decoding and parameter counting.

Query String Builder

Build URL query strings from key-value pairs with optional URL encoding and ? prefix.

ULID Generator

Generate Universally Unique Lexicographically Sortable Identifiers using Crockford Base32 encoding in your browser.

NanoID Generator

Generate compact, URL-friendly unique identifiers with configurable length and alphabet using cryptographic randomness.

CUID Generator

Generate collision-resistant unique identifiers combining timestamp, counter, fingerprint, and random data.

Token Generator

Generate random tokens, API keys, and secrets with configurable length, charset, and optional prefix.

OTP Generator

Generate cryptographically random one-time passwords (OTP) with configurable digit length for testing and prototyping.

JavaScript Formatter

Format and indent JavaScript code with configurable indentation for better readability.

JavaScript Minifier

Minify JavaScript by removing comments, whitespace, and unnecessary line breaks.

TypeScript to JavaScript

Strip TypeScript type annotations, interfaces, and type keywords to produce plain JavaScript.

JavaScript to TypeScript

Add basic TypeScript type annotations to JavaScript code as a starting point.

JavaScript Linter

Check JavaScript code for common issues like var usage, missing semicolons, and console.log statements.

JSX to JavaScript

Convert JSX syntax to React.createElement calls for use without a JSX transpiler.

ES6 to ES5 Converter

Convert ES6+ features like arrow functions, const/let, and template literals to ES5 equivalents.

JavaScript Syntax Checker

Validate JavaScript syntax by checking for unmatched brackets, braces, and unterminated strings.

package.json Validator

Validate package.json structure and check for common issues like missing name or version.

JavaScript AST Viewer

View a simplified Abstract Syntax Tree representation of JavaScript code.

JSON Minifier

Remove all unnecessary whitespace from JSON in one click, locally in your browser.

JSON Validator

Validate JSON syntax and see quick stats about the parsed document in your browser.

JSON Viewer / Formatter

Pretty-print JSON with two-space indentation for easier reading and debugging.

JSON to XML Converter

Convert JSON objects and arrays into XML with a root element and safe text escaping.

JSON to YAML Converter

Turn JSON into readable YAML using a simple built-in serializer for common data types.

JSON to HTML Table

Render a JSON array of objects as an HTML table with inferred column headers.

JSON to TypeScript

Infer a TypeScript-style type tree from a JSON sample for scaffolding interfaces quickly.

JSON to Java Class

Generate a simple Java data class with field declarations mapped from JSON types.

JSON to Python Dataclass

Create a Python dataclass skeleton with type hints inferred from a JSON object.

JSON to PHP Class

Generate a minimal PHP class with typed public properties derived from JSON keys.

JSON to Markdown Table

Convert a JSON array of objects into a GitHub-flavored Markdown table string.

XML to JSON Converter

Parse XML with the browser DOMParser and emit a JSON representation of elements and text.

YAML to JSON Converter

Parse a practical subset of YAML into JSON using a lightweight line-based parser.

JSONPath Tester

Evaluate simple dot-and-bracket paths against JSON to debug queries without installing tools.

JSON Diff Tool

Compare two JSON documents separated by --- and list structural and value differences.

JSON Merger

Deep-merge two JSON objects with the second document overriding and extending the first.

JSON Flattener

Flatten nested JSON into a single object whose keys use dot and bracket notation.

JSON String Escaper

Escape or unescape text for safe inclusion inside JSON string literals with a simple mode toggle.

JSON Size Calculator

Measure UTF-8 byte size of your JSON as pasted and after minification to compare footprint.

JSON Key Extractor

Recursively list every object property name found anywhere in a JSON tree, sorted uniquely.

JSON Array Sorter

Sort a JSON array lexicographically or by a chosen object property with ascending or descending order.

JSON Schema Generator

Infer a draft-07 style JSON Schema with types, properties, and required keys from one sample.

JSON Schema Validator

Run basic JSON Schema checks for object types, required keys, arrays, and nested properties.

JWT Encoder (HS256)

Sign a JSON payload into a real, verifiable HS256 JWT using your shared secret. Output is byte-identical to what a backend would produce.

JWT Decoder

Decode any JWT token to inspect its header, payload, claims, and expiration status without requiring the signing key.

App Icon Generator

Generate an SVG app icon with custom text, colors, size, and shape for mobile or web projects.

Splash Screen Generator

Generate an SVG splash screen with app name, optional tagline, and custom colors at mobile dimensions.

Deep Link Generator

Generate deep links in custom scheme, universal link, and Android intent formats from scheme, host, and path.

Push Notification Builder

Build push notification JSON payloads for FCM, APNs, or Web Push with title, body, icon, and badge fields.

iOS Plist Viewer

Parse XML plist files and display all key-value pairs in a readable format.

Firebase Config Validator

Validate Firebase configuration JSON by checking required fields, format patterns, and common issues.

React Native StyleSheet Generator

Convert CSS properties to React Native StyleSheet syntax with camelCase conversion and px-to-number translation.

Flutter Widget Generator

Generate Flutter widget boilerplate code for StatelessWidget, StatefulWidget, ListView, or Form patterns.

IP to Binary Converter

Convert IPv4 addresses to binary notation and back. See each octet in 8-bit binary.

CIDR Subnet Calculator

Calculate subnet mask, network address, broadcast address, host range, and total usable hosts from CIDR notation.

DNS Zone File Generator

Generate BIND-format DNS zone files with SOA, NS, A, MX, and TXT records for a domain.

IPv4 to IPv6 Converter

Convert IPv4 addresses to IPv6 mapped, compatible, and 6to4 formats.

IPv6 to IPv4 Converter

Extract the IPv4 address from IPv6-mapped (::ffff:) and 6to4 (2002:) addresses.

Network Class Identifier

Identify the network class (A/B/C/D/E) for an IPv4 address with default mask, host count, and private range detection.

IP Range Calculator

Calculate the number of IPs in a range, check CIDR alignment, and convert between start-end and CIDR notation.

MAC Address Generator

Generate random MAC addresses in colon, hyphen, or dot notation with unicast and case options.

Web Performance Calculator

Estimate page load time from page size, connection speed, HTTP requests, and round-trip latency.

Bundle Size Estimator

Estimate JavaScript bundle size after tree-shaking with gzip and brotli compression estimates.

Network Latency Calculator

Calculate network latency including propagation delay, hop delay, TCP/TLS handshake time, and first HTTP response time.

Page Load Time Calculator

Estimate page load time based on page size, connection speed, HTTP requests, and network latency.

Web Manifest Generator

Generate a web app manifest (manifest.json) for PWA installation with icons, colors, and display mode.

Service Worker Generator

Generate a service worker script with caching strategies for offline-capable PWAs.

PWA Manifest Validator

Validate a web app manifest JSON for PWA installability requirements and best practices.

PWA Checklist

Progressive Web App checklist covering manifest, service worker, HTTPS, performance, accessibility, and caching strategies.

ANSI Color Code Reference

Display a complete ANSI color code reference table with foreground, background, bright, 256-color, and true color codes.

ASCII Table Reference

Display the full ASCII table (0–127) with decimal, hex, octal, and character columns including control codes.

Unicode Table

Browse Unicode character blocks including Basic Latin, Greek, Cyrillic, Arrows, Math, Box Drawing, and Emoji.

Keyboard Shortcut Reference

Quick reference for keyboard shortcuts in VS Code, Terminal, Git, Vim, and Chrome DevTools.

HTTP Methods Reference

Complete HTTP methods reference with safety, idempotency, status codes, and content types.

REST API Design Checklist

Comprehensive REST API design checklist covering URL design, methods, status codes, security, and documentation.

TLD Reference List

Reference list of top-level domains (TLDs) — generic, country-code, and sponsored TLDs with descriptions.

Port Number Reference

Reference of well-known TCP/UDP port numbers for web, email, database, file transfer, and other services.

Regex Generator

Describe what you want to match in plain English and get common regex patterns with explanations and JavaScript examples.

Regex Debugger

Test regular expressions against sample text and see all matches, groups, and indices in real time.

Regex to English

Translate regular expressions into plain English explanations, token by token, for easier understanding.

TOTP Validator

Validate TOTP code format by checking digit count and numeric composition for quick format verification.

CSP Header Generator

Build Content Security Policy headers with an easy form for each directive, with both HTTP header and meta tag output.

CORS Header Generator

Generate CORS headers in HTTP, Nginx, or Express.js format with options for origin, methods, credentials, and more.

SQL Formatter

Format SQL queries with uppercase keywords and proper indentation for readability.

SQL Minifier

Minify SQL queries by removing comments and extra whitespace.

SVG Formatter

Format and indent SVG code with consistent 2-space indentation for readability.

SVG Minifier

Minify SVG by removing comments, collapsing whitespace, and trimming spaces between tags.

SVG Optimizer

Optimize SVG by removing editor metadata, unused namespaces, empty attributes, and unnecessary elements.

SVG to CSS Background

Convert SVG code to a CSS background-image data URI with proper URL encoding.

SVG to Base64

Convert SVG code to a base64-encoded data URL with size comparison stats.

SVG to PNG

Generate JavaScript Canvas API code to convert SVG to PNG, with download functionality.

SVG to JSX

Convert SVG attributes to JSX-compatible format: kebab-case to camelCase, class to className, and more.

SVG to React Component

Wrap SVG in a React functional component with JSX attribute conversion and props spreading.

SVG Path Visualizer

Visualize an SVG path data string on a grid with customizable stroke color and width.

SVG Blob Generator

Generate random organic SVG blob shapes with customizable color, complexity, and size.

SVG Wave Generator

Generate SVG wave shapes for section dividers with customizable color, wave count, and position.

SVG Pattern Generator

Generate repeating SVG patterns including dots, diagonal lines, grid, zigzag, and crosses.

Semantic Version Calculator

Calculate the next semantic version based on current version and bump type, with npm and git tag commands.

CDN URL Builder

Build CDN URLs for popular services like jsDelivr, unpkg, cdnjs, and esm.sh with version pinning.

Cache-Control Generator

Generate HTTP Cache-Control headers with optimal directives for different resource types.

Content Security Policy Tester

Parse and validate Content-Security-Policy headers with directive breakdown and security analysis.

robots.txt Tester

Parse and validate robots.txt files — check rules, sitemaps, crawl-delay, and test URL matching.

XML Sitemap Parser

Parse XML sitemaps and display URL count, lastmod dates, changefreq, and priority statistics.

RSS Feed Validator

Validate RSS 2.0 feed XML structure, required elements, and display feed summary.

Atom Feed Validator

Validate Atom feed XML structure, required elements, and display feed metadata.

JSON Feed Validator

Validate JSON Feed (v1.1) structure, required fields, and display feed summary.

XML Validator

Check XML well-formedness by validating tag matching, nesting, and angle bracket balance.

XML to CSV Converter

Convert repeating XML elements to CSV format with automatic header detection.

XML to YAML Converter

Convert XML to YAML format with automatic type detection for numbers and booleans.

XPath Tester

Test simple XPath expressions against XML content to find matching elements and attributes.

XML Formatter / Beautifier

Pretty-print XML with indentation using DOMParser and a recursive serializer in the browser.

XML Minifier

Remove insignificant whitespace between XML tags after parsing with DOMParser and XMLSerializer.