VP8 is an open-source video codec developed by On2 and acquired by Google, serving as the video codec for WebM containers.
Y4M (video/x-raw-yuv) uses lossless compression optimized for lossless video processing, codec testing, video production intermediates. YUV4MPEG2, uncompressed YCbCr 4:2:0 video stream for encoding pipelines
Reach for VP8 when your priority is web video, open-source streaming, webrtc — its efficient compression makes sharing fast and storage minimal.
Reach for Y4M when your priority is lossless video processing, codec testing, video production intermediates — its uncompromising quality ensures every detail is preserved.
Learn more about VP8 and Y4M formats in our detailed guide.
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VP8 (VP8 video) - VP8, open-source video codec by On2/Google for WebM. Best for web video, open-source streaming, webrtc.
Y4M (Y4M) - YUV4MPEG2, uncompressed YCbCr 4:2:0 video stream for encoding pipelines. Ideal for lossless video processing, codec testing, video production intermediates.
Yes, GoConvertFile offers free conversion of VP8 to Y4M for files up to 100MB. No registration required.
Most VP8 to Y4M conversions complete within seconds for standard-sized files. Larger files may take longer depending on the conversion complexity.
Y4M is ideal for lossless video processing, codec testing, video production intermediates. YUV4MPEG2, uncompressed YCbCr 4:2:0 video stream for encoding pipelines
No, converting VP8 to Y4M does not cause additional quality loss — Y4M uses lossless compression. However, any artifacts already present in the original VP8 file will persist in the Y4M output.
Y4M files are typically 2-5x larger than equivalent VP8 files because Y4M preserves all pixel data. This is expected and necessary for lossless quality.