Cut a clip to the exact range you choose — recorded and re-encoded by your own browser.
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Select a video; it loads into a local player.
Set start and end points with the range controls or by seeking.
Export — the selected range plays through a local capture pipeline and is re-encoded in real time.
The output is re-opened to verify its duration is within tolerance, then downloads.
The exported clip is loaded into a local decoder and its duration is compared with your selected range within a stated tolerance; a mismatch marks the output Failed verification.
The tool uses the encoder built into your browser, which produces WebM. That keeps everything local with no multi-megabyte engine download. WebM plays in modern browsers, chat apps, and editors; if you specifically need MP4, most players and editors convert WebM losslessly enough for everyday use.
Yes, and the tool says so up front. Re-encoding at high quality is visually transparent for screen recordings and casual clips. Frame-exact stream-copy trimming requires a much heavier processing engine, which this tool intentionally avoids.
No. The file is opened with your browser's File API and processed by code running in your tab. You can confirm this yourself: open your browser's developer tools, watch the Network panel, and process a file — no request carries your file's bytes. See our How it works page for a step-by-step verification guide.
The same local tool, preconfigured for a specific job.
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Re-encode a video with the audio track entirely absent from the output file.
Resolution and bitrate presets re-encoded locally in real time, with before/after size reporting.
Decode a video's audio locally and export it as lossless WAV or compact WebM/Opus.