Video Trimmer
Trim videos to a specific time range.
Drop your video file here
or click to browse · max 500 MB
Trim Settings
FFmpeg WASM (~25MB) will be downloaded on first use and cached by your browser.
Free Online Video Trimmer
Trim and cut video files to a specific time range directly in your browser. Set precise start and end times using the HH:MM:SS format, preview your video, and export the trimmed clip as MP4 with H.264/AAC encoding. No software installation required - everything runs locally using FFmpeg WebAssembly.
What is it used for?
- Creating short clips and highlights from longer video recordings
- Cutting videos to meet social media platform time limits (Instagram Reels, TikTok, Twitter)
- Trimming presentation and lecture recordings to relevant sections
- Removing unwanted intros, outros, or dead air from videos
- Extracting specific scenes for video editing projects
- Creating video previews and teasers
Step-by-Step Guide
- Click the upload area or drag and drop your video file
- Use the built-in video player to find your desired start and end points
- Enter the start time in HH:MM:SS format (e.g., 00:01:30 for 1 minute 30 seconds)
- Enter the end time in HH:MM:SS format
- Adjust the output quality with the CRF slider
- Click 'Trim Video' to process
- Preview the trimmed result and download the MP4 file
How it works
Upload a video file and set start/end times in HH:MM:SS format. The built-in video preview helps you identify the exact timestamps. When you click Trim, FFmpeg WASM processes the file using the -ss (seek start) and -to (seek end) parameters. The video is re-encoded with H.264 for the video track and AAC for audio, producing a universally compatible MP4 file. No data is uploaded to any server.
Tips & Best Practices
- Use the video player to find exact timestamps before trimming
- For social media, common limits are: Instagram Reels (90s), TikTok (3min), Twitter (2:20)
- Shorter clips process faster - trim a 10-second clip from a 1-hour video in seconds
- The output is always MP4 with H.264/AAC for maximum compatibility
- Files up to 500MB are supported, but smaller files process much faster
Frequently Asked Questions
What video formats can I trim?
You can trim virtually any video format including MP4, WebM, AVI, MOV, MKV, and more. FFmpeg WASM supports all major video codecs. The output is always MP4 (H.264/AAC) for maximum compatibility.
Is the trimming precise to the exact frame?
The trimming is accurate to the nearest keyframe when using stream copy, or to the exact frame when re-encoding (which this tool does). The HH:MM:SS format supports second-level precision.
Will the trimmed video quality be the same?
The video is re-encoded at CRF 23, which is considered visually lossless for most content. You can adjust the quality slider for more control.
How long can the video be?
File size is limited to 500MB. Video length is unlimited, but longer videos take more time to process. For best performance, work with videos under 10 minutes.
Privacy & Security
This tool uses FFmpeg compiled to WebAssembly (WASM). The WASM binary (~25MB) is downloaded from a CDN on first use and cached by your browser. All processing happens locally on your device - your videos are never uploaded to any server. This makes it safe for personal, private, or confidential recordings.