Convert HEIC and HEIF photos — the default format on iPhones and newer Macs — into universally compatible JPG images. Upload one or many files at once, choose your JPG quality (max, high, medium, or low), and convert them all in a single batch. The tool decodes the HEIC format entirely in your browser using the heic-decode library, so your photos are never uploaded anywhere. See original and converted file sizes with percentage savings. Download files individually or all at once as a ZIP. Handles both single-image and multi-image HEIC containers, including files with RGB or RGBA pixel data.
TonniTools is built to run locally in your browser. Since no data ever leaves your device, everything works, even without internet.