HEIC to GIF Converter
Convert HEIC to GIF in your browser. HEIC files usually come from iPhones and iPads since iOS 11, and many recent Android phones; GIF is the better fit for short animations and reactions that must play everywhere. You get a GIF with an optimised palette of up to 256 colours per frame, dithered. Nothing is uploaded.
- Processed locally
- No upload, no wait
- No sign-up
- No watermark
Drop images here
or choose files · paste with Ctrl/⌘ V
HEIC expected · other image formats also work
How to use HEIC to GIF
- 1
Add your HEIC files: drop them here, choose them, or paste from the clipboard.
- 2
There is nothing to tune: the GIF is written losslessly. Resizing and rotating are under More options if you need them.
- 3
Click Convert. Each file is decoded and encoded in a background thread on this device.
- 4
Download the .gif files one at a time or together as a ZIP.
Why use Aback Images for heic to gif
Where the GIF goes next
GIF opens in every browser, operating system, chat app and editor.
GIF next to HEIC
The GIF keeps the decoded pixels without lossy compression, so expect it to be larger than the HEIC.
No new artefacts
HEIC is already lossy, since it stores lossy HEVC (H.265) intra coding, on iPhones as a grid of 512×512 tiles; the GIF keeps the decoded pixels losslessly, so this step adds no compression damage of its own.
Processed on your device
Your images are decoded, edited and encoded inside this browser tab by Web Workers. Nothing is uploaded to a server.
HEIC vs GIF
What changes from HEIC to GIF
Encoding: the HEIC uses lossy HEVC (H.265) intra coding, on iPhones as a grid of 512×512 tiles; GIF uses lossless LZW over a palette of at most 256 colours, and the download is a GIF with an optimised palette of up to 256 colours per frame, dithered.
Bit depth: 8 or 10 bits per channel in the HEIC; GIF allows 8 bits per pixel, as indexes into a palette, and the GIF written here has 8 bits per pixel (palette). 10-bit HEIC photos are reduced to 8 bits per channel.
Colour: YCbCr, usually tagged Display P3 on iPhones in the HEIC; GIF supports an indexed palette of up to 256 colours per frame, written here as an indexed palette of up to 256 colours.
Transparency: the HEIC stores it as an auxiliary image item, rarely used by cameras; the GIF keeps it as on or off per pixel, so soft edges become hard.
Other images: the HEIC can hold a thumbnail, depth map, HDR gain map and burst shots as extra items; only the main image is converted.
Metadata: the HEIC can carry EXIF, XMP and an ICC profile, stored as items; GIF can carry comment and application extension blocks, but no EXIF, but nothing is copied across.
About HEIC
HEIC is the default photo format on iPhones and many Android phones. It is about half the size of JPEG, but Windows, many websites and older software cannot open it without converting.
A HEIC is a HEIF file (ISO base media boxes with the brand 'heic'). iPhone photos store the picture as a grid of 512×512 HEVC tiles that the decoder stitches together, with the thumbnail, depth map and HDR gain map as further items.
HEIC files usually come from iPhones and iPads since iOS 11, and many recent Android phones.
About GIF
GIF is the classic animated image format. It is limited to 256 colours per frame and 1-bit transparency, so photos look grainy and files are large, but it plays everywhere.
A GIF starts with 'GIF89a' (or the older 87a), a logical screen descriptor and an optional global colour table, then image blocks, each preceded by a graphic control extension that sets its delay and transparent colour.
When converting HEIC to GIF makes sense
GIF is the better choice for short animations and reactions that must play everywhere, while HEIC suits storing photos on Apple devices.
GIF strengths: Animation that works everywhere; Simple, universally supported; Good for small flat graphics. Drawbacks to weigh: Only 256 colours per frame; Hard-edged transparency only; Large files for photos or long clips.
Limitations
- iPhone photos are usually Display P3; colours are mapped to sRGB, so very saturated reds and greens can look slightly less vivid.
- GIF transparency is on or off per pixel, so soft edges and shadows get a hard outline.
- GIF holds at most 256 colours per frame, so HEIC colour is reduced and gradients are dithered.
- GIF stores at most 256 colours per frame, so photographs show dithering or banding.
- GIF transparency is all or nothing per pixel, so soft shadows and anti-aliased edges get a hard fringe.
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Frequently asked questions
Does converting HEIC to GIF lose quality?
GIF is written losslessly, so the pixels are stored exactly as decoded. Artefacts already in the HEIC stay, but nothing new is lost. 10-bit HEIC photos are reduced to 8 bits per channel. Not carried over: any a thumbnail.
Why can't I open HEIC photos on Windows or websites?
HEIC uses the HEVC codec, which is patent-encumbered and not built into most browsers, Windows apps and upload forms. Converting makes the photo open where HEIC does not, and the HEIC is decoded inside your browser to do it.
Which apps open GIF files?
Every browser, operating system, chat app and editor.
Are my images uploaded anywhere?
No. Processing happens inside your browser with WebAssembly and Web Workers. The site only downloads the app code and codecs; your files never leave your device. You can confirm this with the live upload counter on the tool, or in your browser's network panel.
Can I process many files at once?
Yes. Drop a whole selection or folder. Files are processed in parallel on several worker threads, each result can be downloaded on its own, and everything can be saved as one ZIP.
Is it free? Is there a file limit or watermark?
It is free with no account, no watermark and no daily limit. The only limit is your device's memory: very large images (over roughly 100 megapixels) may be refused to keep the tab from crashing.