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Need help?APNG to OGV Converter
APNG (Animated PNG) is a lossless animation format with full 24-bit color and 8-bit alpha transparency, which makes its files large and limits it to playback as an image rather than a video. OGV is the Ogg container carrying Xiph.Org's royalty-free Theora codec — a lossy, open-source video format. Converting APNG to OGV trades the lossless frames and transparency for a much smaller, seekable video file suited to open-source and archival pipelines such as MediaWiki/Wikimedia. Because Theora has no alpha channel, transparent pixels are flattened onto a solid Background Color you choose during conversion.
APNG Format at a Glance
| Property | Value |
|---|---|
| Full name | Animated Portable Network Graphics |
| Specification | W3C (PNG extension), Recommendation status June 2025 |
| Originated | Mozilla, 2004 (Stuart Parmenter, Vladimir Vukićević) |
| Compression | Lossless |
| Color / alpha | Up to 24-bit color with 8-bit alpha transparency |
| Plays as | An image (animation), not a video — no seek bar, no audio track |
| Native support | Firefox 3+, Chrome 59+, Safari 8+, Edge 79+, Opera |
| Best for | Short looping animations, stickers, UI/loading graphics needing transparency |
OGV (Ogg Theora) Format at a Glance
| Property | Value |
|---|---|
| Container / codec | Ogg container, Theora video codec (audio: Vorbis) |
| Developer | Xiph.Org Foundation; Theora derived from On2's VP3 |
| Released | Theora 1.0, November 2008; royalty-free patent grant (2002) |
| Compression | Lossy (DCT-based), 8 bits per component |
| Alpha / transparency | None — transparent areas are flattened to a background color |
Native HTML5 <video> support |
Gone by default: Chrome disabled it at v120 and Chromium removed it at v123, Edge at v122, Firefox at v126; Safari never supported it |
| Reliable playback today | VLC, MPV, and other desktop players; Wikimedia/MediaWiki |
| Best for | Open-source, royalty-free, and archival workflows where Theora is required |
How to Convert APNG to OGV
- Upload Your APNG File: Drag and drop your
.apngfile onto the page or click "Upload" to pick it. You can add several APNG files at once. - Pick a Codec and Quality Preset: The Video Codec is VP8 by default, with Theora selectable for legacy Ogg tooling. Set Quality Preset (default "Very High") to balance the lossy video compression against file size.
- Set Background Color and Video Resolution: Because the Ogg video codecs have no alpha channel, pick a Background Color (default White) to fill transparent pixels, and adjust Video Resolution if you want to scale the output. Your APNG's own frame timing drives the motion.
- Convert and Download: Click "Convert" and download your OGV. Files upload over an encrypted connection, are processed on our servers, and are deleted automatically after a few hours. No sign-up, no watermark.
Frequently Asked Questions
Is OGV still a good format to convert to in 2026?
Only for specific cases. Native HTML5 <video> support for Ogg/Theora has been largely removed from modern browsers — Chrome disabled it by default at version 120 and Chromium removed it at 123, Edge disabled it at 122, Firefox disabled it by default at 126, and Safari never supported it. OGV remains useful for open-source and royalty-free pipelines and for platforms like Wikimedia that historically required Ogg, and it still plays in desktop players like VLC and MPV. For broad website and device playback, MP4 (H.264) or WebM are better targets — see APNG to MP4.
Will my APNG's transparency survive the conversion to OGV?
No. Neither VP8 (the default here) nor Theora carries an alpha channel, so any transparent pixels are flattened onto the solid Background Color you select (default White). If your animation relies on transparency over a webpage, convert to a format that keeps alpha, such as WebM with VP9, instead.
Why is the OGV file so much smaller than the APNG?
APNG is lossless, storing every frame as a full PNG bitmap, so files grow quickly with frame count and resolution. The Ogg video codecs here (VP8 by default, Theora optional) are lossy, DCT-based codecs that discard visual detail the eye is less likely to notice, which is why an OGV is typically a fraction of the source APNG's size. The Quality Preset controls how aggressive that trade-off is.
Does the OGV output include an audio track?
No. APNG is a silent image format, so the resulting OGV has video only. The Ogg container can carry a Vorbis audio track, but there is no audio in the source to include.
How is my APNG's frame timing handled?
APNG stores its own per-frame delays, and the converter preserves that animation — all frames, at the source timing — on the output video timeline. In our testing, a short looping APNG converted to OGV at the default "Very High" Quality Preset preserved smooth playback while shrinking the file substantially.
What can open an OGV file after I download it?
VLC and MPV play OGV reliably on Windows, macOS, and Linux without extra codecs. Many browsers no longer play Ogg/Theora natively, and Windows Media Player needs a DirectShow filter. If you need a file that "just plays" on phones, browsers, and TVs, MP4 is the safer choice.
Should I convert APNG to OGV or to WebM instead?
WebM (VP8/VP9) is also open and royalty-free but has much better modern browser support and compression than Theora, and VP9 can even preserve alpha transparency. Choose OGV only when a specific tool or archive requires the Ogg/Theora format; otherwise WebM or MP4 will be more broadly playable.
Are my uploaded files kept private?
Yes. Your APNG is uploaded over a TLS-encrypted connection, converted on our servers, and deleted automatically after a few hours. There is no sign-up, no watermark, and files are never shared or made public.