Compress Video
Runs in your browser — your files are never uploaded.
Make a video smaller without sending it anywhere. Pick how hard to squeeze, optionally drop the resolution, and the file is re-encoded on your own machine — no upload, no account, and no watermark burned into the corner. The result reports the actual size change, including the cases where a video was already well compressed and barely shrinks.
OptionsResolution: Original
How to use Compress Video
- 1
Drop your video onto the box, or click to choose one.
- 2
Pick a quality level — Balanced is the right answer for almost everything.
- 3
Lower the resolution too if the file is going somewhere it will be watched small.
- 4
Click “Convert” and check the reported size change before you send it on.
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Frequently asked questions
How much smaller will my video get?+
Usually 50–80% on footage straight from a phone or a screen recorder, which is encoded generously. Something already compressed for the web may barely move, and the result says so plainly rather than claiming a win. Dropping the resolution as well is what produces the dramatic reductions.
Does compressing lose quality?+
Yes — that is the mechanism. It re-encodes with a higher constant rate factor, discarding detail the eye is least likely to miss. At Balanced most people cannot tell on a phone or laptop screen. Smallest is visibly softer on detailed footage and is meant for attachments and messaging.
Why is there no watermark?+
Because there is no server to pay for. The conversion runs on your own device, so there is no per-video cost to recover and no reason to brand your file. Most free online compressors upload your video, process it on their hardware, and add a watermark to sell the removal.
Is there a file size limit?+
About 300 MB, and that is a browser memory limit rather than a policy. Everything happens in a single tab, so the video and its output both have to fit in memory. A long recording is better trimmed first.
Why is it slower than a desktop app?+
This is ffmpeg compiled to WebAssembly, running in a sandbox with no access to your GPU or the hardware video encoder. A native app uses both. The trade is that your video never leaves your machine.