The fastest way to combine videos on your iPhone
You can merge two videos on your iPhone using the Photos app or iMovie, both of which come built-in. The Photos app works if you want a simple join with no transitions or effects — it takes about two minutes. iMovie gives you more control: you can add transitions between clips, trim the ends, adjust audio, and reorder the videos before combining them. Neither requires you to download anything or pay money.
The method you choose depends on what you want the final video to look like. If you just need the videos played one after the other with no changes, use Photos. If you want to trim clips, add fade effects, or adjust timing, use iMovie.
Key Takeaways
- The Photos app merges videos in under two minutes but offers no editing options — the videos play back-to-back as they are.
- iMovie lets you trim clips, add transitions, reorder videos, and adjust audio before you merge them into one file.
- Both apps save the merged video to your Photos library, where you can share it or delete the originals to free up space.
- If you have fewer than five videos to combine, the Photos app is faster; if you need to edit, iMovie is the better choice.
Merging videos using the Photos app
Open the Photos app and tap the Memories tab at the bottom of the screen. Tap New Memory in the top left corner. Select the two videos you want to merge by tapping each one — they will show a checkmark when selected. Tap Create Memory at the bottom right. The app will combine them automatically and add a piece of music in the background.
The finished video appears in your Memories section. To save it to your main Photos library, tap the video, then tap the three dots in the top right corner, and select Save Video. The merged video now lives in your Photos library alongside your other videos and photos.
This method is the fastest but also the most limited. You cannot control the order, trim the clips, or remove the background music. If you need any of those things, use iMovie instead.
Merging videos using iMovie
Open iMovie and tap the plus sign to create a new project. Select Movie. Tap the plus sign again to add media. Select the first video you want to merge, then tap Add. Repeat this step for the second video. Both videos now appear in the timeline at the bottom of the screen in the order you added them.
To reorder the videos, press and hold one video in the timeline and drag it left or right. To trim a video, tap it once to select it, then drag the edges of the clip inward to cut out the beginning or end. To add a transition between the two videos, tap the space between them and select a transition style — Fade, Dissolve, and Slide are the most common.
When you are finished editing, tap the arrow in the top left corner to go back to the project list. Tap the three dots next to your project and select Save Video. Choose the video quality — 1080p HD is standard and works for most phones and social media. The merged video saves to your Photos library.
Adjusting audio and adding effects in iMovie
If one video has sound you want to remove, tap that video in the timeline, then tap the speaker icon at the bottom of the screen. Slide the volume all the way to the left to mute it. If you want to lower the volume instead of removing it completely, drag the slider to the middle.
To add a fade effect at the beginning or end of the merged video, tap the first or last clip in the timeline. Tap the wand icon at the bottom of the screen and select a fade style. This makes the video fade in from black at the start or fade to black at the end, which looks more polished than a hard cut.
You can also add text, stickers, or filters to the entire video. Tap the plus sign at the bottom left of the screen and select Text, Stickers, or Filters. These changes apply to the whole merged video, not just one clip.
Saving space after you merge
After you save the merged video, you have two copies on your phone: the new merged video and the two original videos. If you want to free up storage space, you can delete the originals. Open Photos, find each original video, tap it, and tap the trash icon. Then open the Recently Deleted album and tap Edit in the top right corner. Select each video and tap Delete to remove it permanently.
Do not delete the originals until you have watched the merged video all the way through and confirmed it looks the way you want. Once you empty the Recently Deleted album, you cannot get the original videos back.
Sharing your merged video
Open Photos and find your merged video. Tap it to open it, then tap the share icon — it looks like a box with an arrow pointing up and to the right. You can send it via text message, email, AirDrop, or social media. If the file is too large to send by text or email, use AirDrop to send it to another iPhone or Mac, or upload it to a cloud service like iCloud Drive or Google Drive.
If you want to share the video on social media, tap the share icon and select the app — Instagram, TikTok, Facebook, or YouTube. The app will open and let you add captions or tags before you post.
Troubleshooting common problems
If iMovie crashes when you try to add a video, close the app completely and reopen it. If the problem continues, restart your iPhone by holding down the power button and sliding to power off, then turning it back on. This clears temporary files that may be causing the crash.
If the merged video plays but has no sound, check that you did not accidentally mute both videos in the timeline. Tap each video and make sure the speaker icon is not crossed out. If the audio is still missing, the original video file may be corrupted — try merging a different video to confirm iMovie is working.
If the merged video is too large to send by email or text, use the share menu to upload it to iCloud Drive or Google Drive instead. You can then send a link to the file rather than the file itself. Alternatively, reduce the video quality when you save it — 720p takes up less space than 1080p.
Frequently Asked Questions
Can I merge more than two videos at once?
Yes. In iMovie, tap the plus sign and add as many videos as you want to the timeline. You can reorder them, trim them, and add transitions between each pair. The Photos app only works with two videos at a time, so use iMovie if you need to combine three or more.
Will merging videos reduce the quality?
Not significantly. If both original videos are 1080p, the merged video will also be 1080p when you save it. The quality stays the same unless you choose a lower resolution when you save — 720p or 480p will look softer than the original.
How long does it take to merge two videos?
Using Photos takes about two minutes. Using iMovie takes five to ten minutes depending on how much editing you do. Saving the final video takes another one to three minutes depending on the length and quality.
Can I undo changes after I save the merged video?
No. Once you save the merged video to Photos, you cannot undo the merge in iMovie. If you need to make changes, open iMovie again, create a new project, and add the original videos. Keep the original videos on your phone until you are certain the merged version is final.
What if one video is vertical and one is horizontal?
iMovie will combine them, but the final video will have black bars on the sides of the vertical video or the top and bottom of the horizontal video. To avoid this, crop both videos to the same orientation before you merge them using the Photos app's crop tool.