About Stayfile

Stayfile is a small set of tools for everyday file jobs, such as putting PDFs together or making a photo small enough to email.

Most sites that do this ask you to upload your file first. That is an odd thing to ask when the file is a bank statement or a signed contract and your own computer could do the work. Stayfile does the work on your computer instead.

It is built on open-source libraries: pdf-lib for PDFs, jSquash for WebP and AVIF images, Papa Parse for CSV, SheetJS for Excel files and fflate for zips.