Free browser-based utilities that streamline coding tasks with instant text processing, data conversion, and validation capabilities.
Robots.txt Generator & Validator Build spec-compliant robots.txt files with a visual editor, or validate existing ones against RFC 9309. Includes presets for common configurations, syntax highlighting, and a URL tester to check if specific paths are blocked or allowed. How to Use Switch between Generator and Validator tabs. In Generator mode, pick a preset or ...
Try the Tool »Sitemap.xml Generator Generate valid, schema-compliant sitemap.xml files following the sitemaps.org protocol. Paste URLs, configure per-URL settings like priority and change frequency, then download your sitemap ready to upload to your server. How to Use Paste your URLs one per line, or upload a CSV file with URL metadata. Set default values for change frequency and ...
Try the Tool »Dockerfile Linter & Formatter Lint and format your Dockerfiles with best-practice rules inspired by hadolint. Check for security issues, optimize layers, enforce conventions, and format consistently — all in the browser. How to Use Paste your Dockerfile into the Linter tab to scan for errors, warnings, and optimization opportunities. Each issue shows the line number, ...
Try the Tool »Rust Code Formatter Format your Rust code following official rustfmt conventions. Paste your code, configure formatting options, and get clean, consistently styled output matching cargo fmt standards. How to Use Paste your Rust code into the editor, select your preferred max line width (80, 100, or 120 characters) and Rust edition (2015, 2018, or 2021), ...
Try the Tool »Python Code Formatter Format your Python code following Black and PEP 8 conventions. Paste your code, choose your preferred line length, and get clean, consistently styled output with import sorting and proper spacing. How to Use Paste your Python code into the editor, select your preferred max line length (79, 88, or 120 characters), then ...
Try the Tool »RGB to CMYK Converter Convert colors between RGB (screen) and CMYK (print) color spaces instantly. Essential for designers preparing files for print production who need accurate color space translations. How to Use Enter your color using RGB values (0-255), hex code, or the color picker. The tool instantly converts to CMYK percentages. Switch to CMYK→RGB ...
Try the Tool »SVG Optimizer & Minifier Optimize and compress your SVG files for faster web performance. Remove unnecessary metadata, minify path data, and reduce file size while keeping visual quality intact — all without leaving your browser. How to Use Upload an SVG file or paste SVG code directly. Choose an optimization preset — Light for safe ...
Try the Tool »CSS Border Radius Generator Visually design rounded corners for your CSS elements. Adjust each corner independently, use elliptical radii, pick from presets, and copy the CSS code — all with a live preview. How to Use Choose simple mode to set all corners at once, or switch to advanced mode for individual corner control. Enable ...
Try the Tool »Analyze Your Text Readability Check how easy or difficult your text is to read using six established readability formulas. Paste any text — articles, blog posts, emails, or documents — and get instant scores with grade level interpretations. How to Use Paste or type your text into the input area and click Calculate. The tool ...
Try the Tool »WCAG Contrast Checker Check color contrast ratios for web accessibility compliance. Verify your text and background color combinations meet WCAG AA and AAA standards to ensure your content is readable for all users, including those with visual impairments. How to Use Enter a foreground (text) color and a background color using the color pickers or ...
Try the Tool »Look Up DNS Records for Any Domain Query DNS records for any domain name including A, AAAA, MX, NS, TXT, CNAME, and SOA records. Essential for network administrators, developers, and anyone troubleshooting domain configurations. How to Use Enter a domain name (e.g., example.com) and select the record type you want to query. Click Lookup to ...
Try the Tool »Convert Unix Timestamps to Human-Readable Dates Easily convert between Unix timestamps (epoch time) and human-readable date formats. A must-have tool for developers working with APIs, databases, or log files. How to Use Enter a Unix timestamp to see it converted to various date formats, or use the date picker to get the Unix timestamp for ...
Try the Tool »Calculate String Length and Character Stats Get detailed character statistics for any text including total length, byte size, word count, and more. Perfect for developers checking string limits, writers tracking length, or anyone analyzing text. How to Use Enter or paste your text into the input area. All statistics update instantly as you type. Click ...
Try the Tool »Format and Beautify SQL Queries Clean up messy SQL queries with proper indentation and formatting, or minify them for production use. An essential tool for database developers and anyone working with SQL. How to Use Paste your SQL query into the input area. Choose your preferred indentation style (2 spaces, 4 spaces, or tabs) and ...
Try the Tool »Convert CSV Data to JSON Format Transform CSV (Comma-Separated Values) data into JSON format instantly. Ideal for developers, data analysts, and anyone who needs to convert spreadsheet data for APIs or applications. How to Use Paste your CSV data into the input area or upload a CSV file. Select your delimiter (comma, semicolon, or tab) ...
Try the Tool »Test and Debug Regular Expressions A powerful regex testing tool with live match highlighting, capture group support, and a library of common patterns. Essential for developers working with text parsing, validation, or search patterns. How to Use Enter your regex pattern in the pattern field, or select a common pattern from the dropdown. Paste your ...
Try the Tool »Pick and Convert Colors Instantly An interactive color picker that lets you select any color visually and instantly get its value in HEX, RGB, and HSL formats. Perfect for designers, developers, and anyone working with colors. How to Use Click on the color picker to open the visual color selector and choose any color. Alternatively, ...
Try the Tool »What is an Email Extractor? Extract all email addresses from any text instantly. Perfect for collecting contact information from documents, web pages, or any text content. Key Features Extract all valid email addresses from text Automatic deduplication Alphabetically sorted results Copy or download the list How to Use Paste your text containing emails View extracted ...
Try the Tool »What is a Random Color Generator? Generate random colors for your design projects. Get colors in HEX, RGB, and HSL formats with a single click. Key Features Generate single or multiple random colors Output in HEX, RGB, and HSL formats Visual color preview Copy color codes instantly How to Use Click Generate to create random ...
Try the Tool »What is a Prime Number? A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. This tool checks if a number is prime and shows its factors. Key Features Check if any number is prime View all factors of a number Find prime factorization Support ...
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Scoreboard is a fun way to keep track of your games, all data is stored in your browser. More features are coming soon!
Update: Our latest tool was added on Mar 10, 2026
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