iPhone Video Merger
How to Combine iPhone 4K/HD Videos with/without Compression

How to Combine and Process iPhone 4K/HD Videos with/without Compression
By Eric Pascal, Updated: Jan 18, 2019

How can I combine short iPhone videos into one video for a home movie? I have a bunch of move videos from my iPhone from the first year of my son and I would like to make a home video and combine all of them. There is a lot of them. Please let me know the fastest and easiest way to do this on a Mac!
I tried using iMovie for joining two clips. It reduced the quality and removed the 60fps. Just needs to combine the two without additional compression.

iPhoto has built-in video trimming that let you extract your favorite segments on iPhone. But once you have multiple videos taken with iPhone, which you want to stitch them together to make one single file for later sharing, it will not work unless you own a third-party video combining app. We will have your needs covered and share the best video merge software for you.

Shall You Combine iPhone Videos with or without Compression?

This depends on you. If you just want to store multiple video tracks of data in its original compression format, frame rate, and data rate in a standalone MOV file on iPhone. There is no need for compression.

But chances are you'd like to play combined video file on certain player or share online, re-encoding is a must. Why? Most modern players want all video data processed to a single track for flawless playback or other purposes. There will be problematic for them to handle the final clip with multiple tracks and different settings. Coincidently, it will be safe to use a video combining software that is able to export a transcoded end result and give you full control over the output settings to maintain your higher 4k video resolution, 60fps frame rate, as well as the video quality.

To that end, a video combining app features the abilities to splice videos together and re-save the combine file with original settings or without re-encoding is much more preferred. VideoProc is just right for you.

combine iPhone videos
To Merge iPhone 4K/HD Videos with/without re-encoding
VideoProc Makes the Easiest Edits

How to Join Multiple iPhone Video Clips with VideoProc [on Windows & Mac]

Videoproc features the abilities to directly stitch together separate video clips without re-encoding and offers both cutting and combining options to help you remove redundant parts and observe your favorite segments only. You can follow the steps below. Prior to the video joining steps, make sure to download VideoProc on your computer and transfer videos from iPhone to your computer first.

download videoproc Free download video merger on Windows (Windows 10 included)

download videoprocFree download video merger on Mac (macOS Mojave included)

Step 1: Launch VideoProc and click Video button on the main interface to kick off the video processing window. Click +Video button to select the iPhone videos you want to combine. You can directly drag and drop the video clips into the screen.

VideoProc home screen

Step 2: Check the boxes Merge at the right corner of the interface to enable the video combining feature.

• To combing iPhone videos without re-encoding, you can check the box Auto Copy, which is enabled to stitch and process video clips without any compression if the output file is encoded with codec the same as the original files.

• For a transcoded video combination, leave the Auto Copy box unchecked and choose the output format from the Target Format section as per your needs. You can click Option, where you can adjust video codec (e.g. HEVC to H.264), resolution, frame rate, bit rate, aspect ratio, GOP, and more.

how to merge iPhone videos together using VideoProc

Step 3: Edit video (Optional): You can also do basic edits such as cut videos before merging, crop, trim, split, rotate, and professional edits like add effects, subtitles and watermark, deshake, denoise, speed up video, and more at your disposal.

Step 4: Click RUN button at the bottom to begin putting iPhone footages into one file.

What You Need to Consider before Combining iPhone Videos

1. The size of the final video should not exceed iPhone capacity. For example, 4k 60fps videos on a 64GB iPhone shall be stitched together under the maximum time of 2 hours, if without compression. See how to reduce video size for iPhone

2. Videos taken with iPhone can be combined without re-encoding, unless you change the recording mode between normal and high efficiency back and forth during the video shooting. For videos from different sources or with different codecs, compression is inevitable.

3. Make sure to have the right settings for sharing or playing without problem. E.g. videos taken with iphone 8 and saved in 4k 60fps generally won't share on YouTube, you need to compress them while combining them together. But VideoProc allows you to export the combined video file in 4K H.264, MP4 HEVC, AVI, MOV, MKV and any other preset settings purpose built for playing on iPhone, iPad, or sharing on YouTube, Facebook, etc.

How to Combine Videos on iPhone with iMovie [on iDevice]

iMovie is one of the most commonly used apps among iOS user to merge videos on iPhone. You can create a standalone movie, do some basic edits on iPhone and export the final project in 360p, 540p, 720p, 1080p and even 4k UHD. Follow the steps below to join multiple segments together to make a fresh video on iPhone using iMovie.

Step 1: Open iMovie app and click Project on the top.

Step 2: Tap Create Project, select Movie and then load the videos on iPhone.

Step 3: With your project open, scroll the timeline till the vertical line known as playhead appears where you want to add and combine another video clip.

Step 4: Click + to load other files from Camera Roll and add them to the timeline. Just do the same process mentioned above to get videos added in the timeline.

Step 5: Apply transition effect to the two separate video clips if you want.

Step 6: Tap Done and save the combined video on your iPhone Photo app. Or you can directly upload the merged video file to YouTube or iCloud as you like.

how to merge videos on iPhone

Note: iMovie won't upscale video, e.g. from 720p to 1080p or 1080p to 4k, and there is neither option of rendering and exporting 4k 60fps video nor preset profiles built for other devices, media players or so. If you want a wide output formats, VideoProc is your best bet. It is able to combine iPhone videos without re-encoding or losing quality, shrink the video file to smaller size to suit your needs, and create a new video file combined with multiple audio/subtitle tracks and levels of quality. On top of that, do the computer-demanding edits of 4K UHD videos can be butter-smooth without any lags or freezes on VideoProc. This is down to the unique application of level-3 hardware acceleration that great offloads CPU and speeds up the whole video processing without compromising quality.

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Eric Pascal

Eric Pascal previously held a senior editor role at Digiarty, covering almost any technology to do with Apple, from reviews, complex troubleshooting tips, to software related. Eric's quite adept with photographing & post production subjects. His journey into the world began somewhere in 2012, aiming to help photographer get out of sticky situations. He's also a keen musician and sportsman.

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