Sample input
Video: harmless 10 second screen-recording clip. Start: 1.25s. End: 5.25s.
FREE ONLINE TOOL
Video Trimmer
Trim a video to an exact start and end point with local preview, duration checks, and browser-based WebM export.
Reviewed June 14, 2026
Index eligible
Sample input + expected output included
No signup
Productivity
Video Trimmer Trim a video to an exact start and end point with local preview, duration checks, and browser-based WebM export.
What this tool does
- precise start and end time fields
- range duration and file-size checks
- preview selected clip before export
- exports a browser-encoded WebM copy
- works best on short social, demo, and tutorial clips
- honest fallback for unsupported browsers
- local-only standard processing
- no queue, watermark, or forced account
REVIEWED OUTPUT EVIDENCE
Sample input, expected output, and safe-use boundary
This page is not a generic directory entry. It gives a concrete control input, an expected result, real browser limitations, and a not-for boundary before the visitor uses a real file.
Expected output
Trimmed WebM should open, show the selected motion range, and be shorter than the source clip.
Proof checks
- Uses the same local media export path a real visitor uses.
- Preview step catches wrong start/end values before export.
- The page states WebM re-encoding and short-clip limits clearly.
When not to use it
Not for preserving original MP4 codecs, subtitle tracks, multi-hour files, forensic video, or certified production delivery.
Privacy boundary: Standard processing is designed to happen in your browser tab. The page can still load normal site scripts such as consent, analytics, ads, and third-party libraries where needed, so do not use regulated or confidential media unless your own policy allows it.
COMMON QUESTIONS
Before you process a real file
Is this different from Video Cutter?
It solves the same core job with trimmer wording for users searching to shorten a clip.
Can it trim a long movie?
The browser workflow is intended for short practical clips. Very large files should use a desktop editor.
Does it preserve the exact original codec?
No. Browser export normally re-encodes to WebM, so review the output before sharing.
Can I preview the cut?
Yes. Use the preview button before exporting the selected range.
Methodology, sources, and limitations
FastTool media tools use standard browser APIs such as File, HTMLMediaElement, Canvas, Web Audio, MediaRecorder, and optional lazy-loaded open-source encoders. The site intentionally surfaces browser limits instead of claiming cloud-editor fidelity.