How to use Trim Video
To cut near a selected time accurately, phase one may re-encode rather than promise keyframe-only lossless cutting. Time and frame boundaries can differ slightly.
- Choose video and wait for its complete duration.
- Enter the start and end times.
- Set quality and audio bitrate, then start processing.
- Check the first frame, last frame, and audiovisual sync.
Available controls
- Start time
- End time
- Quality / CRF
- Audio bitrate
What it helps with
- Time-range clip extraction
- Media is read and transcoded in this browser tab and is not uploaded to FreeTool to perform the task.
Compatibility and limits
- No promise of lossless or exact frame cutting for every codec
- Variable-frame-rate boundaries can shift slightly
- Damaged indexes or unsupported codecs fail
Frequently asked questions
Why is one frame extra or missing?
Timestamps and frame boundaries do not always align, especially in variable-frame-rate video.
Can trimming be lossless?
Keyframe copying works only for some files; this workflow may re-encode for timing and compatibility.
Is the file uploaded?
Media is read and transcoded in this browser tab and is not uploaded to FreeTool to perform the task.