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Free tools that never upload your files

Compress, convert, resize and generate — all processed inside your browser. Your files stay on your device.

  • Nothing is uploaded
  • Free, no account
  • Works offline after loading

prodx.tools is a free collection of 14 browser-based tools for converting images, compressing photos, calculating percentages, loans and BMI, and generating QR codes and passwords. Every tool runs entirely on your device using JavaScript and WebAssembly. No file is uploaded, no account is required, and no watermark is added.

Browse all tools

14 tools found

Text tools

Count, convert and tidy up text.

More tools on the way

New converters, calculators and generators are added regularly. Tell us what you need next.

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One short email when a new tool goes live. Nothing else.

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Frequently asked questions

Are these tools really free?

Yes. All 14 tools are free with no account, no sign-up and no usage limit. The site is funded by advertising, not subscriptions, so there is no paid tier and no watermark on any output.

Are my files uploaded to a server?

No. Every tool processes files locally in your browser using JavaScript and WebAssembly. Your images, videos and text are never transmitted to prodx.tools or any third party, which is why the tools keep working after the page has loaded.

Do the tools work offline?

Yes, once a tool page has finished loading. The conversion and calculation code runs in your browser, so you can disconnect from the internet and the tool will continue to work in that tab.

Is there a file size limit?

There is no server-imposed limit, because nothing is uploaded. The practical ceiling is your device's available memory. Files of several hundred megabytes work on a typical desktop; very large videos may be slower on older phones.

Which browsers are supported?

Current versions of Chrome, Edge, Firefox and Safari on desktop and mobile. JavaScript must be enabled, and the video-to-GIF converter additionally requires WebAssembly support.