When this tool is useful
Reduce video size for web sharing, email preparation, previews, and storage where WebM is accepted.
Video compression
Compress video with clear tradeoffs.
Choose 480p or 720p output and create a VP8/Opus WebM file without sending the video away.
Live converter
Video Compressor
Processed on-device. Your video is not uploaded to ConvertZiva.
Drag & drop your file here, or choose a file. Desktop: 60 MB, 3 minutes, 1080p. Mobile: 25 MB, 1 minute, 720p.
Format notes and limits
Compression is lossy. Output uses VP8 video and Opus audio; lowering resolution usually saves more space than a small quality adjustment.
Related tools and guidance
FAQ
About this tool
Is a smaller file guaranteed?
No. Already-efficient or very short sources can produce an output that is similar in size or larger.
Why is output WebM?
VP8 and Opus provide an open browser-native target with broad encoding support.