Convert APNG to AVI Online
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Supports: APNG, PNG
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Need help?Convert APNG to AVI Online
An APNG is an animated PNG: lossless, 24-bit color with full 8-bit alpha transparency, which makes the files large and useless to most video software. Converting it to AVI bakes the frames into a classic Microsoft video container that older Windows players and many desktop editors (legacy Premiere, Sony Vegas, AVISynth-based pipelines) open without a hitch. Transparency is flattened onto a solid background during the conversion — AVI has no alpha channel — so you trade the transparent edge for broad playback compatibility.
How to Convert APNG to AVI
- Upload Your APNG File: Drag and drop the file onto the page or click "Upload". Add several APNG files if you want to batch them.
- Pick a Merge Strategy: Choose "Merge images" to combine multiple uploads into one AVI, or "Video per image" to get a separate AVI for each file.
- Set Image Duration and Background Color: Image Duration controls how long each frame is held (default 5 seconds per frame); set a faster value like 1/30s for smooth playback. Background Color (default Black) is what shows through where the APNG was transparent.
- Convert and Download: Leave the Video Codec at MPEG-4 (the AVI default) or pick Xvid/H.264, keep Quality Preset on Very High, and click Convert. No sign-up, no watermark.
APNG vs AVI: What Changes
| Property | APNG (input) | AVI (output) |
|---|---|---|
| Type | Animated image | Video container (RIFF subformat) |
| Released | 2008 (Mozilla extension to PNG) | November 1992 (Microsoft, Video for Windows) |
| Transparency | 8-bit alpha, fully preserved | None — flattened to a background color |
| Compression | Lossless, no codec choice | Codec of your choice (MPEG-4, Xvid, H.264, H.265) |
| Typical file size | Large | Smaller, depending on codec and quality |
| Audio track | Never | Possible, but image→video output is silent |
| Best for | Lossless transparent web animation | Legacy Windows software and desktop editors |
Frequently Asked Questions
Will APNG to AVI keep the transparency?
No. AVI does not carry an alpha channel, so the transparent areas of your APNG are flattened onto whatever you set as Background Color (Black by default). If you need to keep transparency, AVI is the wrong target — export to a format that supports alpha or keep the source APNG.
Why is my AVI much smaller than the APNG?
APNG is lossless and stores every frame in full, which is why source files are heavy. AVI lets you encode with a real video codec — MPEG-4, Xvid, or H.264 — that discards redundant detail between frames. In our testing, a 1080p APNG of about 18 MB came out near 1.2 MB as an MPEG-4 AVI at the Very High preset, with no visible difference at normal playback speed.
Should I use AVI or MP4 for an APNG animation?
Pick AVI only when something in your toolchain specifically wants it — an older Windows player, a legacy editor, or an AVISynth workflow. For sharing, web embedding, or modern devices, MP4 with H.264 is smaller and far more widely supported. If that is your goal, use APNG to MP4 instead.
How do I control the playback speed of the AVI?
Use the Image Duration setting. It sets how long each APNG frame is held on screen: small values like 1/30s or 1/24s give smooth motion, while whole-second values turn the animation into a slideshow. The frame timing baked into the original APNG is replaced by the duration you choose here.
Is uploading my APNG file private?
Yes. Files are uploaded over an encrypted (TLS) connection, processed on our servers, and deleted automatically after a few hours — no sign-up, no watermark, and your files are never shared or made public. The practical limit on a big APNG is upload time, not your device.