FormatFlip offers unlimited single-file conversions at no cost, including the quality slider (1–100) and EXIF metadata stripping. Pro ($3/month) adds batch conversion with ZIP download and an ad-free experience. No account is required to use the free features.

FormatFlip processes every image locally in your browser. Conversion uses the Canvas API for most formats and a WebAssembly module (heic2any) for HEIC files. No data is sent to any server — the app works entirely offline after the page loads.

FormatFlip accepts 10 input formats: HEIC, WebP, AVIF, PNG, JPG, GIF, BMP, TIFF, SVG, and ICO. It converts to 3 output formats: PNG (lossless), JPG (lossy, quality 1–100), and WebP (lossy, quality 1–100). HEIC and AVIF are the two newest formats in the list — HEIC is used by iPhones, and AVIF is an open format with better compression than JPG.

FormatFlip decodes HEIC files using a WebAssembly module (heic2any, built on the libheif library). Drop one or more .heic files, select JPG, PNG, or WebP as the output, and download the result. The quality slider lets you control JPG/WebP file size — at 85% quality, a 4.2 MB HEIC photo typically produces an 820 KB JPG.

Batch conversion lets Pro users ($3/month) drop multiple files and convert them all to the same output format in one step. Each file is processed in the browser, and results can be downloaded individually or bundled as a single ZIP file using the "Download all as ZIP" button.

FormatFlip works in Chrome, Firefox, Safari, and Edge. These 4 browsers all support the Canvas API (used for format conversion) and WebAssembly (used for HEIC decoding). The app does not work in Internet Explorer.

JPG and WebP output formats have a quality slider ranging from 1 to 100. Lower values produce smaller files with more compression artifacts; higher values preserve detail at larger file sizes. PNG output is always lossless and has no quality setting. The quality slider is free for all users.

Pro subscriptions can be cancelled anytime from the account page at cashewcrate.com/account. After cancellation, Pro access remains active until the end of the current billing period. Email [email protected] with your order number and a description of the issue if you need help.