🎥 Free Online Video Compressor – Reduce Video File Size Instantly
Compress multiple videos at once - Fast, Free, and Secure
Supported formats: MP4, WebM, MOV, AVI, MKV
100% Secure
All processing happens in your browser. Files never leave your device.
Batch Processing
Compress multiple videos at once with individual settings for each.
Completely Free
No registration required. Compress unlimited videos for free.
Free Online Video Compressor — Reduce Video File Size Without Re-Recording
Raw video files from modern phones and cameras are large — sometimes hundreds of megabytes for a single clip. Our free Video Compressor reduces video file size significantly while keeping the footage watchable, making it easier to upload, share, or store without sacrificing the content.
No software download, no watermarks, and no upload limits that cut off your file mid-way. The tool is built for practical use — handling the kind of videos people actually need to compress and send.
How to Compress a Video Online
- Select your video file — Upload an MP4, MOV, AVI, or WebM file from your device.
- Choose a compression level — Select how aggressively to reduce file size based on your quality requirements.
- Start compression — The tool processes the video using efficient encoding settings.
- Download the compressed file — Save the smaller video file and see the size difference achieved.
What Happens During Video Compression?
Video compression works by re-encoding the video at a lower bitrate — the amount of data used per second of footage. A lower bitrate means a smaller file. At moderate compression, this has minimal visible impact. At higher compression, fine detail in complex or fast-moving scenes is where quality reduction first becomes visible.
For most use cases — WhatsApp sharing, email attachments, social media uploads, and website embeds — moderate compression produces a perfectly usable result at a fraction of the original file size.
Common Reasons to Compress a Video
WhatsApp and messaging apps impose file size limits (typically 16–100MB) on video sharing. Compressing a clip to fit within those limits avoids the quality degradation that auto-compression causes.
Social media uploads — Instagram, TikTok, and LinkedIn all have file size or bitrate recommendations. Compressing your video beforehand gives you control over how the platform re-encodes it.
Email and cloud submissions — attaching video to an email or uploading to a form with a size cap requires compression when the original file is too large.
Frequently Asked Questions
Which video formats does the compressor support?
The tool supports MP4, MOV, AVI, and WebM formats. Output files are delivered in MP4 format, which is the most widely compatible format across devices and platforms.
How much can video size be reduced?
Typical reductions range from 40% to 80% depending on the original video's bitrate and the compression level chosen. A 100MB clip can often be brought down to 20–40MB with acceptable quality.
Will the video resolution change after compression?
Resolution (1080p, 720p, etc.) is maintained by default. Compression reduces bitrate, not pixel dimensions, unless you specifically choose a resolution option to reduce further.