Is this video trimmer free?

Yes, completely free — no account, no subscription, no watermark, no hidden fees. Open the page and start trimming.

Is my video uploaded to a server?

No. Your video never leaves your device. All trimming runs entirely in your browser using ffmpeg.wasm — nothing is sent to any server.

Will trimming reduce the video quality?

No. The tool uses stream copy, which cuts the video without re-encoding. The output keeps the exact same codec, resolution, and bitrate as the original — zero quality loss.

What video formats are supported?

The trimmer supports MP4, MOV, MKV, WebM, AVI, and most common video formats that your browser can read. MP4 (H.264) works best for maximum compatibility.

Does it work on mobile?

Yes. The trimmer works on modern mobile browsers (Chrome, Safari on iOS/Android). Processing large files may be slower on low-memory devices since everything runs in the browser.

✂️ Video Trimmer / Cutter — Free, Private, Browser-Only

Cut any video clip to exactly the segment you need — just set a start time and end time, and your trimmed video downloads instantly. Everything runs in your browser using ffmpeg.wasm; your video file is never uploaded to any server, stays completely private, and the tool works offline once loaded. Looking for a free Clideo alternative? Toolio’s version is completely free and needs no sign-up.

Choose a video

Start (s)

End (s)

Private by design. This tool runs entirely in your browser — nothing you enter is uploaded or stored, and it works offline.

About

This video trimmer uses ffmpeg.wasm — a WebAssembly build of the industry-standard FFmpeg library — to cut video clips entirely inside your browser. When you select a start time and end time, the tool performs a stream-copy cut (no re-encoding), which means the output is produced in milliseconds with zero quality loss. Because no re-encoding happens, the output file keeps the exact same codec, resolution, and bitrate as the original. Supported formats include MP4, MOV, MKV, WebM, AVI, and more. Since all processing happens client-side, your video never leaves your device — there is nothing to upload, no account to create, and no file-size limit imposed by a server. The tool also works offline once the page has loaded.

How to use

Click "Choose File" and select the video you want to trim (MP4, MOV, MKV, WebM, AVI, etc.).
Use the preview player to find your clip boundaries, then enter the start time and end time (HH:MM:SS or seconds).
Click "Trim Video" — ffmpeg.wasm cuts the clip in your browser using stream copy (no re-encoding, no quality loss).
Download the trimmed file — the output keeps the original codec and quality.

FAQ

Is this video trimmer free?: Yes, completely free — no account, no subscription, no watermark, no hidden fees. Open the page and start trimming.
Is my video uploaded to a server?: No. Your video never leaves your device. All trimming runs entirely in your browser using ffmpeg.wasm — nothing is sent to any server.
Will trimming reduce the video quality?: No. The tool uses stream copy, which cuts the video without re-encoding. The output keeps the exact same codec, resolution, and bitrate as the original — zero quality loss.
What video formats are supported?: The trimmer supports MP4, MOV, MKV, WebM, AVI, and most common video formats that your browser can read. MP4 (H.264) works best for maximum compatibility.
Does it work on mobile?: Yes. The trimmer works on modern mobile browsers (Chrome, Safari on iOS/Android). Processing large files may be slower on low-memory devices since everything runs in the browser.