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FilesKit

Help and FAQ

Quick answers to common questions. Each tool page also lists its own formats, limits and tips.

Getting started

  • Open a tool from the home page, then choose files or drop them on the page.
  • Set the options, start the job and download the result when it is ready.
  • Your original files are never changed. Tools always create new files.

If something does not work

  • Use a current version of Chrome, Edge, Firefox or Safari.
  • If a large file fails or the tab reloads, your device may have run out of memory. Try fewer or smaller files, or use a computer instead of a phone.
  • Password-protected PDFs are not supported. Remove the password in the program that created the file first.
  • If a tool does not load, check your connection and reload the page. The site may have just been updated.

Frequently asked questions

Do I need an account?

No. There is no sign-up or login.

Why does Safari not offer WebP as an output format?

Safari’s image encoder cannot write WebP files. It can still read them, so you can convert WebP images to JPG or PNG.

Why is my file rejected?

FilesKit checks what a file really contains rather than trusting its name. A file is rejected if it is empty, too large for the tool, damaged, or of a type the tool does not accept.

Are my files kept after I leave the page?

No. Files and results only exist in your browser’s memory while the page is open. Download results before you close or reload the page.