About FormatOtter

FormatOtter started with a simple frustration: converting one file shouldn't require uploading it to a stranger's server, waiting in a queue, and dodging fake download buttons.

Modern browsers can do serious image and document work locally, so that's what we use. Every FormatOtter tool runs on your device — which makes it faster, more private, and free to operate without plastering the site in ads.

The current lineup covers WebP, PNG, and JPG conversion plus practical PDF organization, conversion, and editing. Browse image tools or browse PDF tools.