Drag and drop a video file or click to select it. Supports MP4, WebM, MOV, AVI, and MKV formats.
Set the target quality or file size. The tool uses your device's hardware acceleration for fast processing.
Download the compressed video and see exactly how much space you saved compared to the original.
Your video never leaves your device. All compression happens in your browser using hardware acceleration — no server uploads.
No registration, no file limits, no watermarks. Compress as many videos as you need, completely free.
Uses your device's GPU for fast video encoding. Compresses large files efficiently while maintaining visual quality.
Reduce a large video file size before uploading to YouTube, Vimeo, or social media — convert to MP4 first if your file is in a less compatible format.
Compress phone recordings to free up storage space on your device without deleting the videos.
Shrink video attachments to fit within email size limits for sharing via Gmail or Outlook.
Optimize video files for a website to ensure fast loading times and reduced bandwidth usage.
| Format | Description | Best For |
|---|---|---|
| MP4 (input/output) | H.264/H.265 video | Universal compression, social media |
| WebM (input) | VP8/VP9 web video | Web video source files |
| MOV (input) | Apple QuickTime video | iPhone and Mac recordings |
| AVI (input) | Legacy video container | Older video archives |
| MKV (input) | Matroska container | High-quality source videos |
Start with a CRF of 23 for a good balance — increase to 28 for smaller files, decrease to 18 for higher quality.
For social media uploads, CRF 26-28 produces excellent results since platforms re-encode the video anyway.
Compress before sharing via email — most email providers limit attachments to 25 MB. You can also trim the video to remove unnecessary sections first.
Check the file size reduction percentage after compression to verify you achieved meaningful savings.
FyleTools uses your device's hardware-accelerated video encoding via the WebCodecs API or FFmpeg WebAssembly to re-encode the video at a lower bitrate. The CRF setting controls quality-versus-size tradeoff. All processing runs locally on your GPU or CPU.