Merge Videos Online Free — Combine Multiple Clips

Merging video clips into a single file is a fundamental editing operation. Combine multiple takes into one final video, join highlights from different events, or stitch together screen recordings from a multi-part tutorial.

MiOffice merges videos in your browser using FFmpeg WebAssembly. Select your clips, click merge, and download one continuous file. No upload, no watermark, no signup.

How to Merge Videos Online

1. 1

   Open the Video Merger

   Go to the video merger.

2. 2

   Select Your Clips

   Upload 2-10 video files (MP4, MOV, WebM, AVI, MKV). They merge in the order selected.

3. 3

   Download Merged Video

   Click merge. Your single combined MP4 file is ready to download.

Common Merge Workflows

Tips for Better Merges

• --Trim first: Use Video Trimmer to cut each clip before merging to remove unwanted sections.
• --Match resolution: For best results, ensure all clips have the same resolution (e.g., all 1080p).
• --Compress after: The merged file may be large. Run through Video Compressor to reduce size.

Privacy

All clips are processed in your browser using FFmpeg WebAssembly. No files are uploaded to any server. The merged output is generated locally on your device.