Format Compatibility Checker
Check practical support on Windows, macOS, iPhone, Android, Chrome, Safari, and Firefox — only for formats we have verified notes for.
Recommended format: WEBP
WebP is usually smaller than JPG/PNG. AVIF can be smaller still, but encode support varies.
Open recommended converter| Platform | Support | Notes |
|---|---|---|
| iPhone / iOS | Supported | Native Camera Roll format. |
| macOS | Supported | Preview and Photos open HEIC. |
| Windows | Requires additional software | Needs HEIF extensions or conversion to JPG. |
| Android | Partial support | Newer Android versions can view HEIF; sharing is safer as JPG. |
| Chrome | Partial support | Decode support varies; this site decodes HEIC locally when possible. |
| Safari | Supported | Opens HEIC on Apple platforms. |
| Firefox | Requires additional software | No reliable native HEIC decode — convert to JPG/PNG. |
How to use this tool
Open the tool
Stay on this page — everything runs in your browser tab.
Add your file
Drop a file or choose one from disk. Nothing is uploaded to a server queue.
Download the result
Process locally, then save the output when you are ready.
Frequently Asked Questions
More on quality loss: conversion quality guides · compression guides
Is this tool free?
Yes. Format Convertly tools run free in your browser with no signup required.
Do you store my files?
No. Processing stays on your device — there is no tool upload to our servers.
Does it work on mobile?
Yes. Use any modern phone, tablet, or desktop browser.
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