125 free tools that run in your browser

Format code, convert data, compress images, generate passwords and QR codes. Nothing is uploaded to a server, so your files and text never leave your device.

On your device: nothing you type here is uploaded

No signup
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No upload
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No watermark
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Keeps working if your connection drops

Most used

Ranked by unique visitors over the last 30 days. Counted without cookies.

All categories

Text tools

15 toolsCount, clean, convert and rewrite text right in the browser.

Encoding

14 toolsBase64, URL, HTML entities, punycode and other encodings.

Data converters

6 toolsMove data between JSON, CSV, XML, Markdown and HTML.

Code tools

13 toolsFormat, minify and validate CSS, HTML, JavaScript, JSON and SQL.

Hashes and passwords

8 toolsHashes, password generation and strength checks, all offline.

Image tools

14 toolsCompress, resize and convert images without uploading them.

Color tools

4 toolsConvert HEX, RGB, HSL and check contrast against WCAG.

Converters and calculators

7 toolsLength, weight, temperature, speed, storage and everyday math.

Time and date

6 toolsTimestamps, world clock, stopwatch and countdown.

Webmaster tools

7 toolsRobots.txt, htaccess, meta tags and social cards with a preview.

Network tools

17 toolsDNS, whois, SSL, headers and other lookups.

Generators and other

14 toolsQR codes, UUIDs, random numbers and small everyday helpers.

Why everything runs in your browser

On-device

Your data stays yours

A password generated on a server is a password that server has seen. Here the work happens on your device, and the page never sends a request containing what you typed.

No waiting, no limits

There is no upload, no queue and no size cap set by someone else. Compressing twenty images is as fast as your machine, not as fast as a shared server.

Fast pages

Every page here is static HTML. The interactive part loads only where it is needed, which is why tools open immediately rather than after a spinner.