Trim Videos to Exact Length in Your Browser Trim and cut video clips to the exact length you need in your browser.

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Video Trimmer

Trim and cut video clips to the exact length you need in your browser.

Upload Video

Drag and drop your video file or click to browse.

Set Trim Points

Use the sliders to set your desired start and end times.

Trim & Download

Click Trim and download your shortened video clip.

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What Is Video Trimmer?

The Video Trimmer is a free browser-based tool that lets you cut video clips to the exact length you need. Set precise start and end points using intuitive sliders, preview the selected segment, and export a trimmed video — all without uploading your files to any server. It's perfect for cutting out the best moments from recordings, trimming intros and outros, or creating short clips for social media. The tool uses HTML5 Video for playback and preview, with Canvas and MediaRecorder API for capturing the trimmed segment. Processing happens entirely on your device.

Why Use Video Trimmer?

Precise start and end time controls with visual preview
Your files stay on your device — nothing gets uploaded
No watermarks or software installation needed
Works with all common video formats

Common Use Cases

Social Media Clips

Trim long videos into short, shareable clips for social platforms.

Remove Intros/Outros

Cut unnecessary beginnings and endings from video recordings.

Highlight Reels

Extract the best moments from sports, gaming, or event recordings.

Presentation Prep

Prepare video clips at exact lengths for presentations and slideshows.

Technical Guide

The Video Trimmer loads the video using an HTML5 Video element and provides range sliders mapped to the video's duration. When trimming, the video element seeks to the start time and plays through to the end time while a Canvas captures each frame. The canvas MediaStream, combined with the video's audio stream via Web Audio API, is fed to a MediaRecorder. The recorder captures only the selected segment, producing a trimmed video file. Frame timing is maintained by using requestAnimationFrame to sync canvas drawing with video playback. The tool handles seeking accurately by listening for the 'seeked' event before starting capture. Audio synchronization is maintained through the MediaStream architecture.

Tips & Best Practices

1
Preview the selection before trimming to ensure accuracy
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Use the time inputs for precise down-to-the-second control
3
Shorter clips process faster and produce smaller files
4
The output format depends on your browser's MediaRecorder support

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Frequently Asked Questions

Q How precise is the trimming?

Trimming accuracy depends on the video's keyframe structure. Results are typically accurate to within a fraction of a second.

Q Is my video uploaded anywhere?

No. All trimming happens locally in your browser. Your video never leaves your device.

Q What formats are supported?

Any video format your browser can play — typically MP4, WebM, and MOV.

Q Can I trim very long videos?

Yes, but longer videos take more time. For best performance, keep source videos under 200MB.

Q Does trimming preserve audio?

Yes, both video and audio are preserved in the trimmed output.

About This Tool

Video Trimmer is a free online tool by FreeToolkit.ai. All processing happens directly in your browser — your data never leaves your device. No registration or installation required.