About SwiftFileTools

Most online file tools work the same way: you upload your file to their server, their server does ten seconds of work, and you download the result, having handed a stranger your tax PDF in the process. SwiftFileTools exists because modern browsers can do that work themselves.

How the tools work

Every tool on this site runs entirely in your browser, using standard web APIs: the canvas engine for image work and the open-source pdf-lib library for PDFs. When you pick a file, it's read into your device's memory, processed there, and offered back as a download. There is no upload, no server-side processing, and no copy of your file anywhere but your own machine. You can watch the network tab while using any tool and see for yourself.

What we don't do

We don't require accounts, don't watermark output, and don't impose artificial size limits to sell a "pro" tier. The practical limit is your device's memory: a phone may struggle with a 500 MB video-sized file, but everyday images and documents process in under a second. We also don't promise what the browser can't do well; where a job needs heavier machinery (OCR, serious PDF compression), we say so rather than ship a bad version.

Who we are

SwiftFileTools is built by the same small team behind NetPayMap, HammerCalc, and Porch & Plan: engineers who think utilities should respect the person using them. Found a file that breaks a tool? Tell us.