FormatFox: File Converter

Convert HEIC, PNG, PDF, images and audio right on your phone. No upload, no account, no subscription — a one-time Pro unlock. Free batch into PDF.

FormatFox converts your images, PDFs and audio right on your phone — fast, private, and without a subscription.

Most converters meter you to one file, hide a weekly subscription behind the Save button, or quietly upload your private files to a server. FormatFox does none of that. Every conversion runs 100% on your device. Nothing is uploaded. It even works in Airplane Mode.

FREE, forever: • Convert HEIC, JPG and PNG • Resize images • Combine photos into a single PDF • See the exact before → after size of every file

PRO — one simple, one-time unlock (no subscription): • Batch-convert many files at once • Transcode audio: M4A, WAV, AIFF, CAF • Quality & compression control • Keep EXIF metadata • "Convert with FormatFox" share action from any app • Remove ads

No account. No login. No tracking of your files. Just convert and get on with your day.