100% browser-based · No upload

File conversion
without the upload

Convert, compress, and transform your files right in the browser.
Your files never leave your device.

Try Compress PDF →

Why OddConv?

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Privacy by design

Files are processed entirely in your browser. Nothing is uploaded. Nothing is stored. No one can see your documents.

Instant, no waiting

No upload wait, no server queue. Your file is ready in seconds, limited only by your hardware.

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Free, no account

Use any tool without signing up. No email, no password, no tracking. Just open and go.

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Works offline

After the first load, all tools work even without an internet connection.

Frequently asked questions

Is OddConv really free?

Yes. All tools are completely free with no limits. Everything runs in your browser, so there are no server costs — nothing to charge for.

Are my files safe? Do you store them?

Your files are never uploaded to any server. All processing happens locally in your browser using JavaScript Web Workers. We have no technical access to your files, and nothing is ever stored or transmitted.

Do I need to create an account?

No account required. Just open a tool and use it.

Does it work on mobile?

Yes. OddConv works in any modern browser on iOS (Safari 15+), Android Chrome (90+), and all major desktop browsers. Some tools that use FFmpeg.wasm may be slower on lower-end mobile hardware.

What file formats are currently supported?

PDF compression and merging, PDF→images, HEIC→JPG, WebP→PNG/JPG, EXIF metadata removal, and a metadata viewer — with more added regularly. OddConv focuses on underserved formats that major tools skip or mishandle.

How is this different from other online converters?

Most online converters upload your file to a server, process it remotely, and send it back — putting your documents on a stranger's hard drive. OddConv runs entirely in your browser using WebAssembly and modern browser APIs. Your file never leaves your device.