Will the cut be exactly at my requested timestamps?

Yes — the clip is fully re-encoded rather than stream-copied, which is what makes frame-accurate cuts possible. A stream-copy trim would instead snap to the nearest keyframe, which can be visibly off.

What happens if my trim range is outside the video's length?

The request fails with a clear error rather than producing an unexpected result.

Will trimming reduce video quality?

The trimmed section is re-encoded, which involves a normal compression pass — noticeable mainly on already low-quality source video.

Why re-encode instead of just cutting the file?

A raw cut can only land on existing keyframes, which are often seconds apart — re-encoding is what lets the trim start and end exactly where you asked.

Trim Video

Upload an MP4, set a start and end time, and download just that clip — free, no account required.

Drop your file here, or click to browse

.mp4 · max 20 MB

FloxerFile cuts an MP4 video down to the exact start and end timestamps you choose, directly on our servers. Useful for pulling out a clip or shortening a recording. No software to install, no data stored after conversion.

How it works

1
Upload your MP4 file
Drag and drop your .mp4 file into the converter, or click to browse. Short clips up to 20 MB work best.
2
Set the start and end time
Enter the start and end timestamps, in seconds, for the section you want to keep.
3
Trim
Click Convert. The trim runs on our servers.
4
Download your clip
Download the trimmed MP4 directly to your device. Your file is never stored — it is deleted immediately after conversion.

Features

Frame-accurate cuts
The clip is re-encoded, not stream-copied, so cuts land exactly on the timestamps you request rather than snapping to the nearest keyframe.
Set start and end in seconds
Enter the exact start and end time for the section you want to keep.
Fast for short clips
Re-encoding a short trimmed segment is still fast — the tradeoff for frame accuracy is worth it at this scale.
Fails clearly on a bad trim range
Invalid or corrupted MP4 files, or a trim range outside the video's duration, are rejected with a clear error.

Supported formats

.mp4

MP4

The most common video container.

Output format: .mp4

Frequently asked questions

Will the cut be exactly at my requested timestamps?: Yes — the clip is fully re-encoded rather than stream-copied, which is what makes frame-accurate cuts possible. A stream-copy trim would instead snap to the nearest keyframe, which can be visibly off.
What happens if my trim range is outside the video's length?: The request fails with a clear error rather than producing an unexpected result.
Will trimming reduce video quality?: The trimmed section is re-encoded, which involves a normal compression pass — noticeable mainly on already low-quality source video.
Why re-encode instead of just cutting the file?: A raw cut can only land on existing keyframes, which are often seconds apart — re-encoding is what lets the trim start and end exactly where you asked.

Related tools

Crop Video

Crop an MP4 video to a specific width, height, and position.

Compress Video

Reduce MP4 file size by re-encoding at a lower quality.

Burn Subtitles into Video

Permanently burn SRT or VTT subtitles into a video's frames.