Compress Video Online — Free, No Upload | Input and conversion guide
Re-encodes a video at the selected compression preset and height to create a transfer-oriented copy.
- Runs in your browser
- Nothing is uploaded
- No signup; device limits apply
Scaling down saves far more than any quality setting. 720p is usually indistinguishable on a phone.
How to use this tool
Before upload, note the source resolution and required height, and keep important scenes separately.
Results and examples
Inspect motion, captions, and audio sync to decide whether compression artifacts are acceptable.
Worked example
Encode a meeting recording at height 720 with the balanced preset, then verify slide text and the speaker's audio.
Limitations
- A chosen height sets an explicit output height and can upscale a smaller source.
- Video is re-encoded as H.264 with 128 kbps AAC; a smaller file is not guaranteed.
Fields
| Field | Guidance and constraints |
|---|---|
| Target | Keep it sharp / Balanced / Smallest file |
| Resolution | Scaling down saves far more than any quality setting. 720p is usually indistinguishable on a phone. · Keep original / 1080p / 720p / 480p |
Data handling
Processing stays in the current browser tab; the site does not upload tool input for the calculation itself.
Sources
Frequently asked questions
Does choosing 1080 improve a 480p source?
It increases output dimensions, not captured detail; keep the original height or choose a smaller target.
What changes with the small preset?
It uses a higher CRF, which can remove more detail from motion and complex scenes.
Related tools
You do not need to start over. Continue with the tool that fits your next step.
