About PixThru

Hi — I'm Luiz Mueller, and I build PixThru.

It started with two things that kept happening. The first was the upload itself: to shrink a photo for a form or pull the audio out of a video, I had to hand my file to a website I knew nothing about, and then hope it was deleted afterwards. For a holiday photo, careless. For a contract, a recorded meeting or a client's footage, unacceptable.

The second was the trap at the end. You upload, you wait, you set everything up — and the moment you click download, there's a paywall. Or a watermark. Or a "free plan" that ran out one file ago. So you go find another site and do the whole thing again. Your work, your time, twice.

Modern browsers don't need a server for any of this anymore. So I built 42 tools that run entirely on your device: nothing to upload, nothing to trust, and no surprise at the download button — because there is nothing to sell you. I keep them honest about what they can and cannot do, too.

What this means in practice

• • Your files never leave your computer. Not to us, not to anyone. You can disconnect from the internet after a page loads and the tools still work.
• • Everything is free. No account, no trial, no credits, no watermark, no file-size limit. The site is paid for by ads, never by locking a tool.
• • No limits to ration. Your device does the work, so there is no server bill for us to pass on to you.
• • We say what doesn't work. Every page states its limits — what a tool can't rebuild, when a model struggles, why something takes minutes. You should find that out before you upload your time, not after.

How it's built

The heavy lifting is done by open-source engines compiled to run in the browser: FFmpeg for video and audio, OpenAI's Whisper for speech, Tesseract for reading text out of images, and the browser's own Canvas for images. Every tool is tested automatically against the live site before release — not just "did the page load", but whether the file it produced is actually valid.

Found a bug, or need a tool that doesn't exist yet? Tell me — I read everything.