The built-in Photos app is your starting point for basic edits

Your iPhone comes with a video editor already installed. Open the Photos app, find the video you want to edit, tap Edit, and you can trim the length, rotate it, adjust brightness and color, and add filters — all without downloading anything. The edits happen in real time on your screen, so you see exactly what the final video will look like before you save.

This approach works well if you need to cut out the beginning or end of a video, fix the exposure because it was too dark, or add a straightforward filter. You can also straighten a tilted video or crop it to a different shape. When you finish, tap Done and choose whether to save the edited version or keep the original.

The limitation is that Photos does one video at a time. You cannot layer multiple clips together, add text overlays, or use transitions between scenes. If that is all you need, you are done. If you want to combine clips or add titles, move to iMovie or another app.

Key Takeaways

  • The Photos app on your iPhone can trim, rotate, adjust color, and explore filters to a single video without installing anything extra.
  • iMovie lets you combine multiple clips, add transitions, include titles and music, and export in different formats — and it is free on most iPhones.
  • Paid apps like Adobe Premiere Rush and CapCut offer more control over effects, color grading, and audio, but cost money or show ads.
  • Always save your original video before editing, because some apps replace the file instead of creating a new one.
  • Export your finished video in a format that matches where you plan to use it — Instagram, YouTube, or email all have different requirements.

iMovie is the free option for combining clips and adding transitions

If you want to put multiple video clips together in sequence, add transitions between them, or include titles and background music, iMovie is built into most iPhones and costs nothing. Open the app, tap the plus sign to start a new project, and choose Movie (not Trailer). Then tap the plus sign again to add clips from your camera roll.

Arrange your clips in the order you want by dragging them. Tap between two clips to add a transition — iMovie offers fades, dissolves, and other effects that play for a fraction of a second as one clip ends and the next begins. Tap a clip itself to trim it, adjust its speed, or add a filter. Tap the music note icon to add background music from your library or iMovie's built-in soundtrack collection.

To add a title, tap the plus sign at the top left, choose Titles, pick a style, and type your text. The title appears over your video for as long as you set it to. When you finish, tap Done, then tap Share to save the video to your camera roll or send it directly to YouTube, Facebook, or another platform.

Paid apps give you more control over effects and color

Apps like Adobe Premiere Rush, CapCut, and LumaFusion offer features that iMovie does not have: more precise control over color grading, keyframe animation, advanced audio editing, and a larger library of effects and transitions. Adobe Premiere Rush costs money but syncs your projects across iPhone, iPad, and desktop. CapCut is free but includes ads and watermarks unless you pay to remove them. LumaFusion costs a one-time purchase and works only on iPhone and iPad.

These apps are worth learning if you edit videos regularly or need a specific effect that iMovie does not offer. They have steeper learning curves than iMovie — the interface has more buttons and options — but they give you the precision that separates a polished video from a rough one. Start with iMovie if you are new to editing. Move to a paid app only when you hit something iMovie cannot do.

How to export your video in the right format

When you finish editing, the app asks where you want to save the video. Save to Photos stores it in your camera roll at full quality. Share lets you send it directly to a platform like YouTube or Instagram, and the app automatically adjusts the resolution and aspect ratio to match that platform's requirements.

If you are uploading to YouTube, Instagram, or TikTok, let the app handle the export — it knows the right settings for each platform. If you are emailing the video or storing it on a computer, choose a common format like MP4. Avoid exporting at the highest quality if the file is going to email, because the file size will be too large. Most email providers reject files over 25 MB.

Check the platform's requirements before you export. YouTube accepts MP4, MOV, AVI, and other formats. Instagram wants MP4 or MOV, with a minimum width of 600 pixels. TikTok accepts MP4 and MOV. Exporting in the wrong format means the platform will convert it for you, which can reduce quality.

Trimming and cutting clips without losing the original

All editing apps let you trim a clip — cut out the beginning, end, or middle — without permanently deleting the footage. In Photos, open the video, tap Edit, and drag the sliders at the bottom left and right to set the start and end points. In iMovie, tap a clip and drag the edges inward. In both cases, the original video stays in your camera roll untouched.

If you want to cut out a section from the middle of a clip — for example, a moment where someone stumbled — you need an app that can split clips. iMovie can do this: tap the clip at the point where you want to cut, then tap Split. This creates two separate clips from one, and you can delete the middle one. Photos cannot split clips, so if you need that feature, use iMovie or a paid app.

Adding music and managing audio

iMovie includes a library of royalty-free background music that you can use without worrying about copyright strikes. Tap the music note icon, choose Music, and scroll through the options. You can also use music from your own library — songs you own or downloaded. Tap My Music to add them.

Adjust the volume of the background music separately from the original audio in your video. Tap the music track at the bottom of the screen and use the slider to turn it up or down. If your video has dialogue and the music is too loud, lower the music volume so people can hear what is being said. If you want to mute the original audio entirely — for example, if you are using a voiceover instead — tap the audio icon on the video clip and drag the slider all the way down.

Paid apps like Adobe Premiere Rush give you more precise audio control: you can fade music in and out, adjust the volume at specific points in the timeline, and add multiple audio tracks. For most videos, iMovie's audio tools are enough.

Troubleshooting common editing problems

If your video is very long or has many clips, the app may slow down or freeze. Close other apps running in the background and try again. If the app crashes, restart your iPhone and open it fresh. Some apps require a certain amount of free storage space to work — if you are running low on space, delete old videos or photos to free up room.

If your exported video looks blurry or pixelated, you may have exported at too low a resolution. Check the app's export settings and choose a higher quality option. If the video is too large to email, export at a lower resolution or use a file-sharing service like Google Drive or Dropbox instead.

If you edited a video in iMovie and want to edit it again later, open iMovie and tap Projects to find it. The project saves all your edits, clips, and transitions. Do not delete the project file if you think you might need to make changes later.

Frequently Asked Questions

Can I edit a video that someone else sent me?

Yes. Save the video to your camera roll first — if it came through a messaging app, open the message, tap and hold the video, and choose Save Video. Then open it in Photos or iMovie the same way you would edit your own video. The editing apps do not care where the video came from.

Does editing a video use a lot of storage space?

The original video takes up space no matter what. When you save an edited version, it creates a new file, so you end up with two copies on your phone. If storage is tight, delete the original after you confirm the edited version looks right. In iMovie, projects themselves take very little space — the clips are stored separately.

Can I undo an edit after I save it?

In Photos and iMovie, yes — open the video, tap Edit, and you can change or remove any edit you made. The original file is always preserved. If you exported the video and then deleted the project, you cannot undo the export, but the original video is still in your camera roll.

What is the difference between a transition and a filter?

A transition is an effect that plays between two clips — it shows how one clip ends and the next begins. A filter is an effect applied to a single clip that changes how it looks, like making it black and white or adding a warm tone. iMovie includes both.

Can I edit a video on my iPhone and finish it on my computer?

Yes, if you use Adobe Premiere Rush — it syncs projects across devices. With iMovie, you can export the video from your iPhone and import it into iMovie on a Mac, but the project itself does not transfer. Most other apps work only on iPhone.