Step 1: Deliver your MKV files using the button above or by place and set.
Step 2: Click the 'Process' button to start the processing.
Step 3: Obtain your converted WebP files.
MKV to WebP Processing FAQ
How do I turn a MKV video into a WebP animation?
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Upload the MKV file and the converter samples frames (default 15 fps for GIF, 24 fps for animated WebP / APNG), encodes them into an animated WebP, and applies palette quantization tuned for the target (WebP GIF uses an adaptive 256-colour palette; animated WebP supports full 24-bit colour with alpha).
How short or long should my MKV be for a good WebP?
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Animated WebP is best for clips under 10 seconds. Longer than that and the file balloons (GIF is essentially uncompressed-per-frame); for longer animations target WebP = WebP or APNG, both of which compress similarly to modern video codecs and stay reasonably sized.
What is the file size of a 5-second WebP animation from a MKV clip?
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For animated GIF: 2-8 MB at 480p depending on motion complexity. For animated WebP: 200 KB to 1 MB at the same resolution and quality — animated WebP is 5-10× more efficient than GIF for the same visual result.
Will the WebP have the same frame rate as the MKV?
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By default we downsample to 15 fps for animated GIF (the format works poorly above 25 fps, and many viewers cap playback there) and 24 fps for animated WebP / APNG which handle higher rates. Override the frame-rate option to keep the source rate when the viewer supports it.
Will the WebP animation have audio?
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No — animated WebP formats (GIF, WebP, APNG) do not store audio at all. If you need sound with the visuals, target a short video format (WebM or MP4) instead of WebP; modern browsers autoplay muted WebM/MP4 just like GIF.
Can I make the WebP animation loop?
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Yes — the loop-count option controls whether the WebP loops infinitely (default), plays N times, or plays once and stops. Loop info is stored in the WebP container metadata and respected by every modern viewer (browsers, Discord, Slack, Twitter).
Why does my WebP look choppy compared to the MKV?
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Two common causes: frame-rate downsampling (15 fps WebP GIF from a 30 fps MKV source — fix with the frame-rate option) and palette quantization on GIF (only 256 colours, so smooth gradients band — switch the WebP target to WebP or APNG for full colour fidelity).
Can I crop or resize the MKV before making the WebP?
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Yes — the resize option scales the input down before frame extraction, which dramatically reduces final WebP file size. A 480p WebP from a 4K MKV is 16× smaller than a 4K WebP at the same fps. Crop is handled by a separate /trim-video/ + /resize-video/ pre-step.
Is my MKV private during WebP conversion?
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Yes — same privacy model as every conversion. Source and output are processed in isolated workers and deleted within minutes. No content is reviewed, indexed, or shared.
How long does the MKV to WebP conversion take?
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Animated WebP encoding is CPU-bound and slower than a typical video re-encode — expect about 1× source duration for GIF (palette generation is the bottleneck) and 0.5× for animated WebP. A 10-second clip finishes in about 10-15 seconds.
Does the WebP preserve transparency from the MKV?
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Animated GIF supports single-colour transparency only (a binary mask, one transparent index per frame). Animated WebP and APNG support full 8-bit alpha. MKV sources that have no alpha channel — most camera footage and most screen captures — produce fully-opaque WebP regardless of which target format you pick.
Can I share the WebP on Discord, Slack, or Twitter?
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Animated WebP GIF is universally supported on every platform. Animated WebP plays on Twitter, Discord, and modern browsers but not on iMessage or older Slack clients. If maximum compatibility matters, pick GIF; if file size matters more, pick WebP.