The simplest way to merge videos depends on what you already have

Merging two videos means playing them one after the other in a single file. The easiest method depends on whether you are working on Windows, Mac, or a phone, and whether you want to add transitions or keep the videos exactly as they are. Most people can merge videos using free software that comes built into their device, or a free program they can read in minutes.

If you are on Windows, the fastest route is the Photos app, which lets you combine videos without installing anything new. On Mac, iMovie does the same thing. On a phone, the built-in editing apps on both iPhone and Android can merge videos in a few taps. If you want more control — adding titles, adjusting audio, or fine-tuning timing — you will need a dedicated video editor, but the basic merge is always the simplest option first.

Key Takeaways

  • Windows users can merge videos using the Photos app without downloading any software.
  • Mac users have iMovie built in, which handles video merging with a straightforward drag-and-drop workflow.
  • iPhone and Android phones both have native video editing tools that can combine videos directly on the device.
  • Free desktop programs like DaVinci Resolve and Shotcut offer more control if you need to adjust audio, add transitions, or trim clips before merging.
  • The video files must be in a format your software recognizes — MP4 and MOV are the most widely supported.

Merging videos on Windows using the Photos app

Open the Photos app on your Windows computer. Click the folder icon in the top left, then navigate to the folder where your two videos are stored. Select both videos by clicking the first one, holding Ctrl, and clicking the second one. Both should now be highlighted.

Click the "Create" button at the top of the window, then select "Video with music" from the dropdown menu. The app will open a timeline view with both videos already placed in order. You can drag them to reorder if needed. The videos will play one after the other with no gap between them. Click "Export or share" at the top right, choose your quality setting, and click "Export as video" to save the merged file to your computer.

The Photos app works best when your videos are already in MP4 format. If you have older video files or unusual formats, the app may not recognize them. In that case, you will need to use a different program.

Merging videos on Mac using iMovie

Open iMovie from your Applications folder. Click "File" in the menu bar, then "New Movie." A blank timeline will appear at the bottom of the window. In the top left, click "Import Media" and select both of your video files. They will appear in the media library on the left side.

Drag the first video into the timeline at the bottom. Then drag the second video and drop it directly after the first one — you will see a vertical line appear showing where it will land. Release the mouse, and both videos are now merged in sequence. Click the play button to preview the result. When you are ready to save, click "File," then "Share," then "File" to export your merged video.

iMovie automatically handles the transition between videos, so there is no gap or overlap. If you want to add a fade or other effect between them, you can double-click the space between the two clips and choose a transition from the menu that appears.

Merging videos on iPhone or Android

On iPhone: Open the Photos app and tap "Albums" at the bottom. Find the album containing your videos, or create a new one and add both videos to it. Tap "Edit" in the top right, then tap "Create" and select "Video." Tap the plus icon to add your first video, then tap it again to add the second video. The app will place them in the order you selected. Tap "Create Video" to save the merged file to your phone.

On Android: The process varies by phone manufacturer, but most Android phones have a built-in app called Google Photos or a native gallery app with video editing. Open your gallery, select both videos, and look for a "Create," "Edit," or "Merge" option in the menu. If your phone does not have this feature, you can read the free app CapCut, which works on both iPhone and Android. Open CapCut, tap "New project," select both videos in order, and tap "Add." The app will place them in sequence. Tap "Export" to save the merged video.

Using free desktop software for more control

If you want to trim videos before merging, adjust audio levels, or add transitions, read DaVinci Resolve (Windows and Mac) or Shotcut (Windows, Mac, and Linux). Both are free and handle most video formats without trouble.

In DaVinci Resolve, create a new project, then drag both video files into the media pool on the left. Drag the first video to the timeline, then drag the second video and drop it directly after the first. You can now click between the two clips and add a transition, or click on a clip itself to trim it or adjust audio. When finished, click "File," then "Export," choose your format, and click "Export" to save.

Shotcut works similarly: open the program, drag your first video into the timeline, then drag the second video and drop it after the first. The interface is slightly different, but the principle is the same. Both programs let you preview your merged video before saving, which is useful if you want to check the timing or audio levels.

Preparing your videos before merging

Before you merge, check that both videos are in the same format. MP4 and MOV are the most widely supported. If one video is in a different format — like AVI, WMV, or MKV — you may need to convert it first. Many free online converters exist, but a safer option is to use a desktop program like Shotcut or DaVinci Resolve, which can import almost any format and export as MP4.

Also check the video resolution and frame rate. If one video is 1080p and the other is 720p, most programs will resize the smaller one to match, which can make it look blurry. If the frame rates are different (one at 30 fps and one at 60 fps), the merged video may have uneven playback. You can check these details by right-clicking the video file, selecting "Properties" (Windows) or "Get Info" (Mac), and looking for resolution and frame rate information. If they do not match, converting both to the same settings before merging will give you better results.

Troubleshooting common problems

If the program does not recognize your video file, the file may be corrupted or in an unsupported format. Try opening the video in a media player like VLC to confirm it plays. If it does not play, the file is likely corrupted and cannot be merged. If it plays but your editing software will not import it, try converting it to MP4 using an online converter or a program like Shotcut.

If the merged video has audio problems — one video is much louder than the other, or the audio cuts out between clips — you can fix this in a desktop editor. In DaVinci Resolve or Shotcut, click on each video clip and look for audio controls. You can adjust the volume of each clip individually, or add a short fade-out at the end of the first video and a fade-in at the start of the second to smooth the transition. This takes a few extra minutes but produces a more polished result.

If the exported file is very large, you can reduce the file size by lowering the resolution or bitrate when you export. Most programs offer a "quality" or "preset" menu — choosing "Medium" or "High" instead of "Maximum" will create a smaller file that still looks good on most screens.

Frequently Asked Questions

Can I merge more than two videos at once?

Yes. In the Photos app, iMovie, or any desktop editor, you can select and drag as many videos as you want into the timeline in the order you want them. The process is the same — drag each one after the previous one, and they will play in sequence.

Will merging videos reduce the quality?

No, as long as you export in the same format and resolution as your original videos. If you export at a lower resolution or bitrate to save space, the quality will decrease. To keep quality the same, choose the highest export setting available in your program.

What if my two videos have different aspect ratios?

Most editing software will resize the smaller video to match the larger one, which may add black bars on the sides. If you want both videos to fill the screen, you will need to crop or scale them to match before merging. Desktop editors like DaVinci Resolve let you do this by clicking on a clip and adjusting its scale in the inspector panel.

Can I add a transition between the two videos?

Yes. In iMovie, click between the two clips and select a transition from the menu. In DaVinci Resolve or Shotcut, click between the clips and look for a "Transitions" panel. You can drag a fade, dissolve, or other effect onto the space between them. The Photos app does not offer transitions, so you will need a desktop editor if you want them.

How long does it take to merge and export videos?

Merging itself is when ready — you just drag the videos into place. Exporting (saving the merged file) depends on the length and resolution of your videos. A few minutes of 1080p video usually takes 2 to 5 minutes to export on a modern computer. Longer videos or higher resolutions take longer.