Video Compressor
Compress a video to a smaller MP4 right in your browser. Nothing is uploaded.
How to Use
Add your video
Drag a video onto the box or click to pick one. MP4, WebM, MOV, MKV, AVI, and M4V files up to 200 MB all work. It is read straight from your device, not uploaded.
Choose a compression level
Pick Light to stay close to the original, Balanced for an everyday size cut, or Strong for the smallest file when you have a tight size limit to hit.
Compress and download
The tool shrinks the video in your browser and shows the new size next to the original. Download the smaller MP4, or switch levels and run it again if you need it smaller.
A free video compressor that shrinks files in your browser, with no upload
This is a free online video compressor that reduces your video file size right inside your browser, with no upload, no signup, and no watermark. The file is read and compressed on your own device, so nothing is sent to a server and your video stays private.
Most online compressors upload your clip to their servers first, which is slow on a big file and hands your video to a company you do not know. This tool works the other way around. Your browser does the compression locally, so a large file starts shrinking right away and never leaves your computer or phone. Drop in an MP4, WebM, MOV, MKV, AVI, or M4V up to 200 MB, pick how hard to compress, and download a smaller MP4.
Which compression level should I pick?
Instead of asking you to guess a technical quality number, the tool gives you three plain levels. Here is what each one does and when to use it.
| Level | What it does | Best for |
|---|---|---|
| Light | Trims the file while keeping quality close to the original | High-detail footage, small savings, archiving |
| Balanced | A strong size cut with a quality drop most people will not notice | Everyday sharing, uploads, the default choice |
| Strong | Smallest file, and also lowers the resolution to save more | Email and chat size caps, quick previews |
Will the video fit email, Discord, or WhatsApp?
Different apps cap attachment size, which is the most common reason people compress a video. Use this as a rough guide, then pick the level that gets you under the limit. Shorter clips compress to a smaller size, so a 20 second clip is far easier to fit than a 2 minute one.
| Where you are sending it | Typical size limit | Suggested level |
|---|---|---|
| Gmail and Outlook email | 25 MB | Balanced, or Strong for longer clips |
| Discord (free) | 10 MB | Strong, and keep the clip short |
| 16 MB | Strong | |
| Slack (free workspace) | Large per-file room | Balanced is plenty |
Why did my video get bigger instead of smaller?
If a clip was already compressed hard when it was made, squeezing it again can add size rather than remove it, because the tool has to re-encode a file that has little left to cut. When that happens, keep your original and try the Light level, or accept that the file is already close to its smallest useful size.
Why Use This Tool
No upload, fully private
Your video is read and compressed on your own device. Nothing is sent to a server, so even a large file stays private and starts shrinking right away.
Three simple levels
Pick Light, Balanced, or Strong instead of guessing a technical setting. Each level is tuned for a real need, from near-original quality to the smallest file.
Works with common formats
Drop in MP4, WebM, MOV, MKV, AVI, or M4V up to 200 MB. The tool returns a widely supported MP4 you can play or upload anywhere.
No signup, no watermark
No account, no email, and no logo stamped on your video. The compressed file is clean and yours to use.
Runs on mobile and desktop
Works in any modern browser on Windows, Mac, Android, and iPhone. Larger files compress best on a computer with more memory.
See the savings before you keep it
Compare the original and compressed size after each run. If it is not small enough, switch to a stronger level and try again in one click.
Frequently Asked Questions
Is my video uploaded to a server?
No. The compression happens inside your browser on your own device, so your video never leaves your computer or phone and nothing is stored online. That also means a big file starts compressing right away instead of waiting to upload.
How do I compress a video for free with no watermark?
Add your video, pick a compression level, and download the result. There is no signup, no cost, and no watermark or logo added. The file you download is a clean MP4.
How small can I make my video?
It depends on the clip. Phone and camera footage often drops 60 to 80 percent on the Balanced or Strong level. A file that was already compressed hard will shrink much less. The tool shows the new size so you can decide if it is small enough.
Will compressing lower the video quality?
Some quality is always traded for a smaller size, but on Light and Balanced the change is hard to spot at normal viewing sizes. Strong also lowers the resolution, so use it when a small file matters more than fine detail.
What video formats can I compress?
You can add MP4, WebM, MOV, MKV, AVI, and M4V files up to 200 MB. The tool always gives you back an MP4, which plays on almost any device and uploads to most sites without conversion.
How do I get a video under 10 MB for Discord or email?
Choose the Strong level and start with a short clip, since length affects size more than anything else. Check the compressed size shown after the run. If it is still over the limit, trim the clip shorter before compressing and run it again.
Is the audio kept in the compressed video?
Yes. The sound is kept and re-encoded to a standard format so the compressed MP4 plays with audio everywhere. Only the file size goes down, not the number of tracks.
Does it work on iPhone and Android?
Yes. It runs in the browser on phones and tablets as well as computers. Very large files compress more reliably on a desktop because phones have less memory, so trim long clips on mobile if the tool runs out of room.