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Lyonite is a focused set of free PDF tools built to work on your device, without accounts or document uploads. The tools, tests and corrections are published by a named maintainer.
You know the drill. You need to quickly edit a PDF property or remove some metadata before sharing. You search online and find tools that either upload your files to unknown servers, require account creation, or hide basic features behind paywalls.
I got tired of that, so I built the tools I needed: PDF tools that run in your browser. Your files never leave your device. There is no account or upload step.
Lyonite is maintained by one developer and registered to 102040291 Saskatchewan Ltd. The tools are currently free, with no ads, subscriptions or daily quota.
“Well” is a word every site on this list uses, so we publish the measurements instead. In August 2026 we built a test file with a GPS-tagged photo, a named reviewer’s comment and an embedded script hidden in it, ran it through seven metadata removers, and published what came back. Ours failed too, until we fixed it. The test file and the checker are public, so you can run them on us.
Maintainer
I build and test Lyonite’s PDF tools. The same name appears on the Tested reports so you can see who ran a measurement and who has an interest in the result. Test fixtures, methods and corrections are linked from each report where they are available.
For a bug, correction or reproducibility question, email hello@lyonite.com. I commit to replying within 48 hours. Meaningful product changes are recorded on the Lyonite updates page.
Principles that guide every decision.
Merge, split, rotate, compress, convert and inspect PDFs in one place. We are building a broader toolkit with the same care for privacy, quality and the details that save you time.
Your PDFs never leave your browser. Everything is processed locally on your own device. We can't see your documents because they never touch our servers.
No upload queue. Work starts on your device, and expensive PDF parsing runs away from the page so the interface stays responsive. Runtime depends on the file and the device.
Every tool is free, with no daily limit and no account. Your files are processed by your own computer, so there is no server bill to pass on to you.
Clean interface. No dark patterns. No aggressive upsells. We treat you like an intelligent human, not a conversion metric.
We are a small studio building tools that can stand alongside the biggest names. Thank you to our growing community for using Lyonite, sharing it and telling us what needs work. Your support makes every improvement possible.
Transparency isn’t a marketing term for us. Here’s exactly how Lyonite works.
A PDF feature you wish existed, a bug, a file one of our tools got wrong, or a number in our tests you think is unfair — all of it goes to the same address, and it is read by the people who wrote the code.
You get a reply within 48 hours. If you found something we got wrong, we publish the correction with the date and the credit on it.
hello@lyonite.com