Video Compressor
Reduce video file size directly in your browser. Choose quality, target size, resolution, frame rate and audio with no upload.
Selected videos
Reduce video file size directly in your browser. No file is uploaded.
No video selected yet.
Compression
The actual size may differ.
Advanced
Good to know
Good to know
The Compress Video helps you make video files smaller. It processes large MP4, MOV, WebM, or MKV files locally in the browser and is useful for social media, websites, presentations, support videos, training material, and quick video editing without upload.
Typical searches include compress video, reduce MP4 size, make video smaller. The result includes smaller videos with selected quality, bitrate, resolution, or target size. Strong compression is usually lossy; test the result before publishing.
Typical use cases
Prepare video for web and social media
Adapt clips for upload limits, aspect ratios, file sizes, preview videos, product pages, stories, reels, or internal knowledge bases.
Quick fixes without an editor
For simple tasks such as trimming, rotating, cropping, muting, merging, or format changes, a focused browser tool is often enough.
Keep private source files local
Raw videos, screen recordings, customer demos, or internal clips do not need to be sent to an external service as long as browser processing is sufficient for file size and codec.
Tips for better results
Keep the original video
Save the result as a new file and check picture, audio, duration, resolution, file size, and sync before replacing the source.
Watch codec and browser limits
Not every browser handles every container, codec, or very large file equally well. If a clip cannot be processed, another source format or a shorter segment often helps.
Balance quality against size
Smaller files usually come from re-encoding, lower bitrate, lower resolution, or fewer frames per second. Review critical details after export.
How it works
How it works
Step by step
Features
Features
No upload
Selected videos are processed locally and are not sent to a server for editing.
Focused settings
Choose key options for format, quality, audio, duration, resolution, aspect ratio, or export.
Download a new file
The original stays unchanged; the edited video is provided as a new file.
Frequently asked questions
Frequently asked questions
Are videos uploaded when using Compress Video?
No. Analysis, preview, processing, and download run locally in the browser as far as the browser supports the format.
Does quality stay exactly the same?
Not always. Many video operations require re-encoding or new containers. Quality, file size, metadata, or compatibility can therefore change.
Why can processing take a long time?
Video files are large and re-encoding is compute-intensive. Runtime depends on file size, resolution, codec, device, browser, and selected settings.
More tools
More tools
MOV to MP4 Converter
Convert MOV and QuickTime files to MP4 locally in your browser - with fast remuxing or compatible H.264/AAC output.
Video Trimmer
Trim the beginning and end of a video directly in your browser. Choose precise or fast trimming, preview and download with no upload.
Change Video Resolution
Change a video's resolution proportionally in your browser. No crop, no stretching and no upload.