A collection of simple, fast and free web tools built to help with everyday digital tasks. Whether you are formatting text, checking code, converting data, creating slugs, or testing how something will appear online, these tools are designed to save time without needing bulky software or sign-ups.
The aim of 27tools is to keep things clean, practical and easy to use. Each tool runs directly in your browser where possible, making it ideal for developers, designers, marketers, students, small business owners, and anyone who regularly works online.
Useful tools
From generating clean URLs to encoding data or previewing how a page might appear when shared, web tools can make small jobs much quicker. Instead of opening multiple apps or searching through complicated websites, you can use one simple tool and get the result straight away.
These tools are especially useful for website owners, content creators and developers who need quick answers while building, testing or updating a site.
What you can do
Use the web tools on 27tools to help with tasks such as creating SEO-friendly slugs, converting timestamps, encoding and decoding Base64, testing regular expressions, checking open graph previews, validating SVG files, and more. New tools are added regularly as the site grows.
Explore the free web tools below and bookmark the page if you regularly work on websites, content, code or online projects.
Paste a timestamp in seconds, milliseconds, microseconds, or nanoseconds, convert dates back to epoch values, and copy common UTC, local, ISO, and RFC formats.
Convert Your TimePaste plain text to create Base64, decode Base64 back into readable UTF-8 text, copy the result, and compare character and byte counts in the browser.
Convert Base64Enter a regex pattern, paste test text, toggle flags, and inspect highlighted matches, start positions, lengths, and capture groups without uploading your text.
Test Your RegexPaste spreadsheet exports, database rows, or comma-separated data, handle quoted values, and generate pretty or minified JSON without sending the data anywhere.
Convert CSV to JSONAdd source, medium, campaign, term, and content parameters to a destination URL while keeping existing query parameters and fragments intact.
Build a UTM LinkPaste an original and changed version to see added, removed, and modified lines side by side or in a unified report, all in your browser.
Compare Your TextCreate one string or a full batch using letters, numbers, symbols, and optional custom characters. Copy the output or download it as a text file.
Generate StringsPaste parts lists, shopping lists, asset notes, or plain number lists, then get an instant total. Currency-marked lists ignore dates, model names, week numbers, and other stray digits.
Total Your ListPaste a title, heading, product name, or phrase, then turn it into a lowercase URL slug. Choose dash or underscore separators and optionally remove stop words or numbers.
Generate Your SlugEnter a URL to inspect title, description, preview image, Open Graph tags, Twitter card tags, missing metadata, and suggested social preview code.
Check Your PreviewDrop in a favicon.ico file to preview it on dark or light checkerboard backgrounds, zoom in closely, and see which icon sizes are bundled inside.
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