Why our tools never upload your files

There is a standard way to build a file tool on the web, and we did not use it. The standard way is: the visitor uploads a file, a server does the work, the visitor downloads the result. It is easier to build, it works on any device, and it lets you count how many files people convert.

It also means that every contract, passport scan, medical form, client recording and internal spreadsheet passes through a machine the visitor has never seen, owned by a company they have never met, subject to a retention policy they have not read.

The promise nobody can verify

Most upload-based tools say the right things. Files are deleted after an hour. Transfers are encrypted. We do not look at your documents. These claims are probably true at most of those companies most of the time. The problem is that no visitor can check any of them, so what is really being offered is trust — and trust is a poor substitute for a guarantee when the file is a signed agreement.

A promise you cannot verify and an architecture that cannot betray you are not the same product.

What we did instead

Every instrument in the KaiOrb suite does its work inside the browser tab. The PDF reducer parses and rewrites the document in JavaScript. The image compressor re-encodes on a canvas. The video converter hands the file to your browser's own audio decoder. The finance analyzer is arithmetic on numbers you typed and nothing else.

There is a simple way to check this, and we would rather you did than take our word for it: load the page, disconnect from the internet, and use the tool. It works. Nothing is being sent, because there is nowhere for it to go.

What it costs

This approach is not free of trade-offs, and pretending otherwise would undermine the point. Very large files are limited by the memory of your device rather than a server farm. Some formats we would like to support need decoders a browser does not have. The PDF reducer only recompresses JPEG images, so a text-heavy PDF barely shrinks — and it tells you that instead of returning a file the same size with a success message.

We think those are the right trade-offs for the documents people actually want to shrink. A scanned contract is mostly pictures, and it is exactly the file you would least like to upload.

Why give them away

KaiOrb is a network of companies that build software for other businesses. These tools are not a funnel with a hidden paywall; there is no account, no email capture, no watermark and no export limit. They are the plainest demonstration we can offer of how we approach a problem: work out what the person actually needs, refuse to do the dishonest version of it, and be specific about the limits.

If you use them for years and never speak to us, they still work.