MP4
Basics
A widely used container for H.264/H.265 video and AAC audio.
Advantages
Broad device, browser, editor, and social-platform compatibility.
Limitations
Quality can decline when a lossy MP4 is encoded again.
100% client-side processing
WebM Trim
Keep only the part of a local WebM video you need. Trim points are precise and your video never leaves your browser.
Choose a video to begin.
About WebM trim
WebM Trim in your browser
Trim a local WebM video to keep the section you need without uploading the file. Choose precise start and end times, preview the result, and download a compatible MP4 clip.
WebM is an open, web-focused video container commonly used with VP8, VP9, or AV1. It is well suited to efficient HTML5 video delivery in modern browsers.
Best for
Publishing video on modern websites and web apps.
Working with WebM
Keep the original resolution when visual detail matters; choose Strong compression for lightweight web previews.
1
Choose a video
Select a local file. It is processed only on your device.
2
Set the range
Enter the start and end time for the part you want to keep.
3
Download the clip
Preview the trimmed MP4 and download it when it is ready.
Supported input formats
Video formats this tool can process
MP4, WebM, MOV, MKV, AVI, FLV, and TS are accepted. A container alone does not guarantee compatibility: the video and audio codecs inside the file must also be available in the browser's FFmpeg runtime.
WebM
Basics
A web-focused container commonly paired with VP8, VP9, or AV1 video.
Advantages
Efficient for modern web playback and royalty-free workflows.
Limitations
Some older devices and desktop editors have limited support.
MOV
Basics
Apple QuickTime's container, often used by cameras and editing software.
Advantages
Strong fit for Apple and professional production workflows.
Limitations
High-quality files can be large and less convenient outside Apple tools.
MKV
Basics
A flexible Matroska container that can hold multiple audio, subtitle, and chapter tracks.
Advantages
Useful for archives and videos with multiple languages or subtitles.
Limitations
Native playback support varies across browsers, TVs, and phones.
AVI
Basics
A legacy Microsoft container used by older Windows applications.
Advantages
Often useful for preserving or importing older media libraries.
Limitations
Files tend to be larger and are less suitable for current web playback.
FLV
Basics
A legacy Flash Video container from earlier web-video workflows.
Advantages
Helpful for converting older archives into modern files.
Limitations
Flash is deprecated and current browser support is limited.
TS
Basics
An MPEG Transport Stream container common in broadcast and HLS segments.
Advantages
Resilient for transmission and common in streaming pipelines.
Limitations
Less convenient for editing, sharing, and seeking than MP4.
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MP4 Trim
Trim MP4 videos directly in your browser. Keep the part of your video you need.
MOV Trim
Trim MOV videos directly in your browser. Keep the part of your video you need.
MKV Trim
Trim MKV videos directly in your browser. Keep the part of your video you need.
AVI Trim
Trim AVI videos directly in your browser. Keep the part of your video you need.
FLV Trim
Trim FLV videos directly in your browser. Keep the part of your video you need.
TS Trim
Trim TS videos directly in your browser. Keep the part of your video you need.