Convert HEIC to APNG Online
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Supports: HEIC
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Need help?Convert HEIC to APNG
HEIC is the high-efficiency image container Apple devices save photos in, and it can hold more than one picture — a Live Photo, a burst, or a multi-image sequence. APNG (Animated PNG) takes those frames and plays them as a short, looping animation that opens in almost any browser, where a raw HEIC usually shows nothing. Upload several HEIC photos and they become the frames of one APNG, in upload order; upload a single HEIC and you get a clean one-frame PNG-compatible image.
Why Convert HEIC to APNG
HEIC has narrow support outside Apple's ecosystem — Windows needs Microsoft's HEIF Image Extensions installed before File Explorer will even preview the file, and most web browsers will not render it inline. APNG solves the portability problem for animations: it is supported by roughly 94.7% of browsers worldwide (caniuse), including current Chrome, Firefox, Safari, Edge, and Opera. Because APNG is backward-compatible with PNG, any viewer that cannot animate it falls back to showing the first frame rather than failing outright — so the file is never a dead end the way a stray HEIC often is.
HEIC Format at a Glance
| Property | Value |
|---|---|
| Full name | High Efficiency Image Container (HEIF profile) |
| Standard | ISO/IEC 23008-12 (MPEG-H Part 12) |
| Introduced | HEIF ~2015; adopted by Apple in iOS 11 (2017) |
| Image payload | HEVC (H.265) intra-coded frames |
| Multi-image | Yes — sequences, bursts, Live Photos, depth maps |
| Compression | Lossy (typical) or lossless |
| Browser support | Very limited; mainly Safari on Apple devices |
| Best for | On-device iPhone/iPad storage at small file sizes |
APNG Format at a Glance
| Property | Value |
|---|---|
| Full name | Animated Portable Network Graphics |
| Standard | PNG extension; folded into the PNG 3rd Edition spec (2023) |
| Introduced | 2004, by Mozilla |
| Image payload | PNG (zlib/DEFLATE) frames |
| Multi-image | Yes — every frame is a full PNG with its own timing |
| Compression | Lossless |
| Browser support | ~94.7% global; Chrome 59+, Firefox 3+, Safari 8+, Edge 79+ |
| Best for | Animated icons, logos, looping clips with sharp edges or transparency |
How to Convert HEIC to APNG
- Upload Your HEIC Files: Drag and drop or click "Upload". Add several HEIC photos to build a multi-frame animation, or one file for a single-frame result; frames are sequenced in the order you add them.
- Set the Framerate: Use the Framerate dropdown to choose playback speed — 10 FPS (Recommended) by default, adjustable from 1 FPS (Slideshow) up to 50 FPS for snappier motion.
- Tune Image Quality, Colors and Resolution: Adjust Image quality (%), reduce the Colors palette to shrink the file, and pick a Preset Resolution or keep the original dimensions.
- Convert and Download: Click "Convert" to build your APNG. No sign-up, no watermark.
Frequently Asked Questions
How many HEIC images can I combine into one APNG?
Add as many HEIC photos as you like — each becomes a frame in the order you upload them, and the Framerate setting controls how fast they play. A single HEIC produces a one-frame APNG, which behaves like an ordinary lossless PNG everywhere.
Will the APNG animate inside my existing Live Photo HEIC?
If your HEIC holds a multi-image sequence such as a Live Photo or burst, those internal frames can be carried through to the APNG so the motion is preserved. A standard single-shot HEIC has only one image, so it converts to a single static frame.
Why not just keep the file as HEIC?
HEIC barely renders outside Apple's ecosystem — Windows requires the HEIF Image Extensions package, and most browsers will not display it inline. APNG plays in roughly 94.7% of browsers without any plugin, so it is the safer choice when you need the animation to open on someone else's device.
Is APNG lossless, and will I lose quality converting from HEIC?
APNG frames use PNG's lossless compression, so the conversion step itself does not re-compress with artifacts. The one caveat is that HEIC is often stored lossily on the phone, so the APNG can only be as sharp as the source frames — it preserves what is there rather than recovering detail HEIC already discarded.
Should I use APNG or GIF for this animation?
APNG keeps full 24-bit color and an 8-bit alpha channel, so it avoids the 256-color banding and hard-edged transparency that make GIFs look dated. GIF wins only where you need the absolute broadest legacy support. In our testing, a short multi-frame clip exported as APNG kept gradients clean where the GIF version showed visible dithering. If you specifically want a GIF, use HEIC to GIF instead; for a single still image, HEIC to PNG is the right tool.
How do I make the APNG file smaller?
Lower the Image quality (%), reduce the Colors palette, or pick a smaller Preset Resolution — fewer colors and fewer pixels are the biggest levers for an APNG, since lossless frames add up quickly across an animation. Already have PNG source frames instead of HEIC? Build the animation directly with PNG to APNG.
What framerate should I pick for the animation?
The Framerate setting controls playback speed, not how many frames exist — it plays the HEIC images you uploaded faster or slower. The 10 FPS default is a good general choice. Drop to 1–5 FPS to page through a few distinct photos like a slideshow, and raise it toward 25–50 FPS for smooth motion when your frames come from a burst or a Live Photo's internal sequence. If the animation runs too quickly or too slowly, re-convert at a different framerate; the frame count stays the same either way.
What happens to my HEIC files after I convert?
Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours — no sign-up, no watermark, never shared or made public.