Free Tools / Media Tools
Free Audio & Video Trimmer Online
Use this free audio and video trimmer to cut a clip down to just the part you need. Upload a video or audio file, set your start and end points while previewing it, and download the trimmed result - all processed locally in your browser, with nothing uploaded to any server.
Select an audio or video file
or drag and drop it here (MP4, MOV, WebM, MP3, WAV, M4A...)
What is an audio and video trimmer and why it matters
An audio and video trimmer cuts a media file down to a shorter clip by removing everything before your start point and after your end point. This matters whenever you only need a portion of a longer recording - pulling a highlight from a long video, shortening a voice memo, or preparing a clip for social media - without needing to install dedicated video editing software for a simple cut.
How this trimmer works
This tool loads a WebAssembly build of FFmpeg, a widely used media processing engine, directly into your browser tab. Your file is read locally, trimmed between the start and end times you set, and the result is handed back to you as a downloadable file - at no point does the file leave your device. By default it uses a fast trim mode that cuts on the nearest keyframe (near-instant for most files); the "precise cut" option re-encodes the clip so the cut lands exactly on your chosen times, at the cost of taking longer to process.
Common searches this tool answers
- How do I trim a video online for free?
- How do I cut an audio clip without installing software?
- Is there a way to trim a video without uploading it anywhere?
- How do I shorten an MP3 or MP4 file online?
- How do I cut a video to an exact start and end time?
How to use it
- Select or drag and drop your audio or video file into the upload box.
- Preview the file and note the total duration shown.
- Play or scrub to your desired start point and click "Use current" under Start time (or type the time directly), then do the same for End time.
- Enable "Precise cut" if you need the trim to land on an exact frame rather than the nearest keyframe.
- Click Trim clip and wait for processing to finish - larger files or precise cuts take longer.
- Preview the trimmed result and click Download trimmed file.
Tips
- Leave "Precise cut" off for the fastest result when an exact frame doesn't matter - most clips only shift by a fraction of a second with the fast mode.
- Turn "Precise cut" on when you need the trim to start or end exactly where you specified, such as syncing to music or removing an exact unwanted section.
- For very large video files, expect processing to take longer since everything runs using your device's own processing power rather than a server.
- Keep the browser tab open and active while processing - switching away or closing the tab will interrupt the trim.
Frequently asked questions
Is this audio and video trimmer free to use?
Yes. It is completely free and does not require any sign-up or download of separate software.
Are my files uploaded to a server?
No. All trimming happens locally in your browser. Your file is never uploaded anywhere.
Why does the first use take longer than later ones?
The trimming engine is around 25 MB and needs to load once per browser session. After that initial load, trimming itself starts immediately.
What's the difference between fast trim and precise cut?
Fast trim cuts on the nearest keyframe in the file, which is very quick but can be off by a fraction of a second. Precise cut re-encodes the clip so it starts and ends exactly on your chosen times, but takes longer to process.
What file types are supported?
Common formats like MP4, MOV, WebM, MP3, WAV, and M4A are supported for both preview and trimming.
Is there a file size limit?
There's no hard limit set by this tool, but since processing happens in your browser using your device's memory, very large files (several GB) may be slow or run into your browser's memory limits.
