Reduce file size to meet platform limits
Shrink large video files so they fit within email attachment limits, messaging app caps, or social media upload restrictions.
Private local processing • No upload • Works in your browser
Video Compressor
Compress video files online. Reduce file size while preserving visual quality — ideal for WhatsApp, email, and social media. All processing runs locally in your browser.
What Video Compression Is and When You Need It
This tool compresses video files directly in your browser using local encoding. Upload a video, choose a compression preset or target file size, and download a smaller file — no software to install and no files uploaded to a server. It is useful when you need to send a video by email, share it on platforms with file size limits, or free up storage on your device.
How to Compress a Video in Your Browser
- 1.Upload the video file you want to compress — MP4, WebM, MOV, AVI, or MKV
- 2.Choose a compression preset or target file size — lower presets give smaller files, higher presets preserve more detail
- 3.Start the compression in your browser — the encoding runs entirely on your device
- 4.Preview the compressed video to check if the quality is acceptable
- 5.Download the smaller video file ready for sharing or storage
Benefits of Compressing Video Online
Keep the quality you need
Choose from five compression presets or set a target file size. At moderate settings the difference is usually imperceptible on phones and laptops.
Processing stays on your device
The entire encoding process runs in your browser on your own machine. Video data is not transmitted to any external server.
Compress multiple videos at once
Upload several videos and apply the same compression settings to all of them in one go — saves time when preparing a batch for sharing.
Target a specific file size
Set a target size in MB and the tool estimates the bitrate needed to fit your video into that limit.
Video Compressor FAQ
How much can the file size be reduced?
The reduction depends on the original resolution, bitrate, codec, and the compression level you choose. Larger source files with high bitrate usually shrink the most.
Will compression make the video look worse?
Some quality loss is inevitable since compression removes data. However, at moderate presets the difference is usually imperceptible on phones and laptops. Only extreme compression settings produce visible artifacts.
How does compression relate to bitrate?
Bitrate measures how much data is used per second of video. Compression lowers the bitrate by encoding the video more efficiently. A lower bitrate means a smaller file, but if set too low the video may look blurry or blocky.
My video is too large to upload — will compression fix that?
Yes. Most platforms enforce file size limits — WhatsApp caps at 16MB, email at 25MB, Instagram at 100MB. Compressing the video reduces its size to meet these requirements while keeping the content watchable.
What video formats can be compressed?
This tool handles common video formats including MP4, WebM, MOV, AVI, MKV, WMV, FLV, and MPEG. The output keeps the same format as the input.
Can I compress several videos with the same settings?
Yes. Upload multiple videos and the tool applies your chosen compression preset to each file. You can download them individually or together.
Is my video sent anywhere during compression?
No. The encoding happens entirely on your own device inside the browser. Your video file is not uploaded or transmitted to any server.