Convert MTS to APNG Online
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Supports: MTS
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Need help?MTS to APNG Converter
MTS is the file extension used by AVCHD camcorders — an MPEG-2 transport stream wrapping H.264 video, developed jointly by Sony and Panasonic in 2006. APNG (Animated PNG) is a lossless animated image format that extends PNG with multiple frames while keeping full 24-bit color and 8-bit alpha transparency. This converter turns a short clip from your AVCHD footage into a self-contained animated image you can embed in a web page, README, or chat without a video player.
MTS Format at a Glance
| Property | Value |
|---|---|
| Standard | AVCHD (Sony / Panasonic), MPEG-2 transport stream container |
| Released | 2006 |
| Video codec | H.264 / AVC (typically 17–24 Mbps at 1080p) |
| Audio codec | Dolby AC-3 or linear PCM |
| Container | .MTS (on-camera) / .M2TS (after copy to disc) |
| Best for | Recording and archiving HD camcorder footage |
| Plays natively in browsers | No — needs conversion to play on the web |
APNG Format at a Glance
| Property | Value |
|---|---|
| Standard | Defined inside the PNG Specification (Third Edition), a W3C Recommendation dated 24 June 2025 |
| First proposed | 2004, at Mozilla — standardised 21 years later |
| Compression | Lossless (DEFLATE), no color quantization required |
| Color depth | Full 24-bit RGB plus 8-bit alpha transparency |
| Animation | Multiple frames with per-frame timing in a single file |
| Native browser support | 95.94% global — Chrome 59+, Firefox 3+, Safari 8+, Edge 79+ (caniuse) |
| Fallback | Browsers without support show only the first frame as a static PNG |
How to Convert MTS to APNG
- Upload Your MTS File: Drag and drop your
.mtsclip onto the page or click "Add Files." Trim to a short segment first if it is a long recording — APNG is best for a few seconds, not a full clip. - Set the FRAMERATE: Pick a frame rate from the dropdown; 10 FPS (Recommended) keeps the file small while staying smooth. Higher rates such as 15 or 30 FPS look smoother but grow the file fast.
- Scale with Image Resolution: 1080p AVCHD frames make a heavy APNG, so this is the control that matters. Keep original, choose a Preset Resolution such as 720p or 480p, scale by percentage, or type an exact Width x Height. "Use as max resolution" caps oversized clips without upscaling smaller ones.
- Convert and Download: Click Convert. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours. No sign-up, no watermark.
APNG vs GIF vs Animated WebP
| Property | APNG | GIF | Animated WebP |
|---|---|---|---|
| Color depth | 24-bit + 8-bit alpha | 256 colors, 1-bit transparency | 24-bit + alpha |
| Compression | Lossless | Lossless (LZW), color-limited | Lossy or lossless |
| Typical file size | Larger | Largest for photos | Smallest |
| Quality | Highest (pixel-exact) | Banding / dithering | Near-source (lossy) |
| Browser support | 95.94% | Universal | ~97% |
| Best for | Crisp logos, short clips, sharp edges | Maximum compatibility | Smallest web animations |
Frequently Asked Questions
Why convert MTS to APNG instead of GIF?
APNG keeps full 24-bit color and smooth 8-bit alpha transparency, so gradients, anti-aliased edges, and skin tones stay clean. GIF is capped at 256 colors per frame with only on/off transparency, which produces visible banding and "halo" edges on camcorder footage. The tradeoff is size: an APNG is usually larger than the same clip as GIF. If you need the smallest file, convert MTS to animated WebP instead; if you need to share to a legacy client, convert MTS to GIF.
How long a clip can I turn into an APNG?
Keep it to a few seconds. APNG stores every frame losslessly, so a 1080p clip at 10 FPS adds up quickly — a 10-second clip can run to tens of megabytes. Trim to the moment you want and consider dropping the resolution with the Preset Resolutions control before converting.
Will the audio from my MTS file be kept?
No. APNG is an image format and has no audio track, so the AC-3 or PCM audio in your AVCHD clip is discarded. If you need the sound, keep an MP4 alongside it — you can convert MTS to MP4 for a playable video with audio.
Does APNG support transparency from my footage?
APNG supports 8-bit alpha, but standard camcorder video is fully opaque — there is no alpha channel in an MTS recording to preserve. Transparency only matters if you later edit the frames to add it. The benefit you do get for free is clean, lossless color with no GIF-style dithering.
What happens in a browser that does not support APNG?
The roughly 4% of browsers without APNG support display the first frame as a normal static PNG instead of the animation. Nothing breaks — the image still renders — so a sensible first frame is a good idea if your audience may include older browsers.
What frame rate should I choose?
For most footage, 10 FPS (Recommended) is the sweet spot between smoothness and file size. In our testing, a 3-second 768p clip at 10 FPS produced a noticeably smaller APNG than the same clip at 30 FPS while still reading as smooth motion. Raise to 15 or 30 FPS only when the motion is fast and you can accept a larger file.
Is the conversion lossless, and why is there no quality slider?
The step from decoded H.264 frames to APNG is lossless, which is exactly why MTS to APNG shows no quality percentage and no palette control — there is no quantization stage to tune. Every frame is written as full truecolour PNG data, so the only artifacts you see are the ones H.264 already baked into the recording. Size is controlled structurally instead: shorter clip, lower Framerate, smaller Image resolution. We do run a Zopfli-based APNG optimiser over the assembled file, but that is lossless recompression rather than a quality trade.
Are my uploaded files kept private?
Yes. Files are uploaded over an encrypted connection, processed 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.