WEBM Compressor
Re-encode WEBM videos with VP9 at a chosen quality or target size to reduce bandwidth.
Select a file for WEBM Compressor
Drag & drop your files here, or click to browse
Videos taller than this are downscaled; smaller videos are not upscaled.
- Compression re-encodes the video (H.264 for MP4/MOV, VP9 for WEBM). Some quality loss is inherent to lossy compression.
- If the result is not smaller than the original, the report says so — the original may already be well compressed.
How to use WEBM Compressor
From upload to download in 3 steps.
- 1
Add your file
Choose or drag a WEBM file into the upload area (up to 1 GB each).
- 2
Adjust the settings
Optionally change the compression mode, max resolution and audio bitrate — the defaults work well for most files.
- 3
Compress and download
Click Compress, follow the progress, and download the result. Files are deleted from the server automatically afterwards.
Supported formats and settings
- Input formats
- WEBM
- Output formats
- WEBM
- Limits
- Up to 1 GB per file
- One file per job
- Files are deleted automatically after processing
- Compression Mode
- Quality preset, Target file size (MB) and Target percentage of original
- Quality Preset
- High quality (light compression), Balanced (recommended), Small file and Smallest file
- Target Size
- 1–4000 MB
- Target Size
- 10–90 % of original
- Max Resolution
- Keep original, 1080p, 720p, 480p and 360p
- Audio Bitrate
- 192 kbps, 160 kbps, 128 kbps, 96 kbps, 64 kbps, 48 kbps and 1 more
Why use our WEBM Compressor?
Genuine Processing
Real conversions by proven engines — never renamed copies or fake results.
Private by Design
Files are deleted automatically after processing and never used for training.
Free to Use
No account, no subscription and no watermarks on your files.
Frequently Asked Questions
Which file formats does WEBM Compressor support?
WEBM Compressor accepts WEBM files. It produces WEBM.
Is there a file size limit?
Each file can be up to 1 GB. Larger files take longer to upload and process.
What happens to my files?
Files are uploaded only when you start processing. They are stored under random names in a private temporary folder, processed, and deleted automatically shortly afterwards — the exact time is shown with your result — or immediately when you click “Delete files now”. Files are never shared or used for training.
How does WEBM Compressor work, and what are its limitations?
Compression re-encodes the video (H.264 for MP4/MOV, VP9 for WEBM). Some quality loss is inherent to lossy compression. If the result is not smaller than the original, the report says so — the original may already be well compressed.
Is WEBM Compressor free to use?
Yes. WEBM Compressor is free, needs no account, and does not add watermarks to your files.
Related Tools
Tools that work with the same formats as WEBM Compressor
Video Compressor
Reduce video file size with quality presets, a target percentage or an exact target size.
Video Converter
Convert videos between MP4, MOV, MKV, WEBM, AVI and more, with control over codec, resolution and quality.
MOV Compressor
Compress Apple MOV files recorded on iPhone and Mac down to shareable sizes.
MP4 Compressor
Compress MP4 video files to fit under email and messaging size limits.