1
Upload your video
Select the file you want to process from your device.
Free online video compressor
Compress Video
Reduce the file size of MP4, MOV, WEBM, M4V, AVI and MKV videos online. Your video is processed directly in your browser.
FreeFast processingSecure
Drop your file here
or click to select it from your computer
Maximum file size: 50 MBProcessing runs on your device or the secure ToolNova server, depending on the tool; each tool page explains the method
3 easy steps
How to use Compress Video
2
Compress video
Let ToolNova automatically process your file.
3
Download compressed video
Download the generated file to your device.
ToolNova
Compress Video made easy
Reduce the file size of MP4, MOV, WEBM, M4V, AVI and MKV videos online. Your video is processed directly in your browser. Complete the process directly from your browser without installing complicated desktop software.
Compressed MP4
Download the generated file to your device when processing is complete.
Fast processing
Upload your file and complete the process in just a few steps.
Secure connection
File transfers are performed over HTTPS.
Free tool
Use ToolNova tools for free.
Guide
What you should know about Compress Video
ToolNova Compress Video re-encodes video to target a smaller MP4 file. Processing happens on your device, and final size depends on the source codec, resolution and bitrate.
How do I reduce video file size?
Select your video in ToolNova and start Compress Video. The tool re-encodes the video with settings designed to reduce data usage and creates a compressed MP4 file.
Does video compression reduce quality?
Some quality loss can occur because the video is re-encoded to reduce file size. The amount depends on the source video.
Why can a compressed video still be large?
If the source video is already heavily compressed, re-encoding may produce only a small reduction. Results depend on codec, resolution, bitrate and content.
Is the video uploaded to ToolNova?
No. Video compression runs in your browser with FFmpeg WebAssembly.
Resolution, bitrate and quality in video compression
Video file size is affected by duration, resolution, bitrate, codec and audio settings. Compression aims to create a smaller output for sharing, web upload or storage, while more aggressive settings can reduce visual detail.
Detailed tool guide
compress video: How do you reduce video file size?
ToolNova Compress Video reduces video file size for easier sharing and storage.
Video size depends on resolution, bitrate, codec, frame rate and duration. Long or high-resolution videos can offer more room for reduction.
Aggressive compression can introduce blockiness, detail loss or lower audio quality. Review the output on the target device.
ToolNova uses HTTPS when file transfer is required. For confidential or corporate files, also follow your organization’s data security and sharing policies.
Formats and compatibility
Which file formats work with compress video?
VIDEO
Video input
Use a supported video as the source.
VIDEO
Smaller video output
Create a smaller video for sharing or storage.
Use cases
When is compress video useful?
Messaging
Reduce large videos for easier messaging.
Web upload
Prepare videos for platforms with upload limits.
Storage
Reduce storage used by video archives.
Mobile data
Reduce data usage with a smaller video file.
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