No. 1 The Fastest MP4 Joiner without Re-encoding - MacX Video Converter Pro
MacX Video Converter Pro is the fastest MP4 joiner software on the list, which can merge multiple MP4 videos into one in seconds thanks to HT and QSV acceleration. MP4 files you join can be in different resolution (4K UHD and 8K also supported), codecs, screen size etc. needless of manually re-encoding. The MP4 merger's built in High Quality Engine guarantees original quality. It supports to combine MP4, AVI, WMV, MKV, FLV, M2TS, AVCHD etc. any formats videos movies together. The multifunctional MP4 joiner can be also used to split, trim, crop video and add watermark/subtitles to videos, download MP4 videos movies and do other video MP4 editing jobs.
How to quickly join MP4 files needless of re-encoding
No complicated MP4 merging process. The MP4 joiner is very simple to use. Before you get started, free download the MP4 merger for macOS (macOS Sierral also incl.) or for Windows and run it, and follow steps below to learn how to quickly join separate MP4 video or movie file together with high quality without re-encoding.
Step 1: Click "Add File" icon on top-left corner and select MP4 files you want to join, the MP4 joiner will load files immediately.
Step 2: Switch the Merge All button to "ON" to activate the MP4 merger software and continue.
Step 3: Click "RUN" to process MP4 file merging with the MP4 joiner. It also works as an MP4 video splitter, editor, downloader and converter.
No.2 Free Online MP4 Joiner - aconvert
Aconvert is an online MP4 joiner that can join MP4 files from local drive or online. It requires no register like other online MP4 editor software, and it's free to use. The online free MP4 video merger can also combine AVI, FLV, MKV, M2TS, ASF, MOV, VOB etc. But the maximum file size is 200MB. The MP4 video files you want to join must have the same resolution, frame rate, screen size etc. Like other online MP4 joiner, the application is brimming with misleading ads. Learn how to use the free online MP4 joiner to do the video merging job below.
How to merge MP4 video file online with the same dimensions
Step 1: Head to the MP4 converter & joiner page. Click "Choose File" to select MP4 file from local drive. The MP4 joiner also supports to join online file URL.
Step 2: Click "Submit" to start to process the free MP4 file joiner. You can only submit video file one by one, and the latest video file the MP4 merger tool creates is the merged one. Note that the file size is limited to 200MB.
Step 3: On the Output Results section, click download icon below ACTION and save the merged MP4 file to Dropbox or save to Google Drive. Don't click the big green "START DOWNLOAD" icon, which is also advertisement. The free online MP4 joiner can do few editing job, learn how to add subtitle to MP4 if you need.
No.3 MP4 Merger Freeware - Format Factory
Format Factory is a multifunctional MP4 editor that can also work as an MP4 video joiner. It allows users to merge multiple MP4 files into one with options to adjust video quality and codec. The output quality is OK. Format Factory is an ads-supported MP4 joiner freeware, so, keep your eyes open while downloading and installing it. The interface design of the MP4 merger free software is not very user friendly, making it not easy for novice users to get started. Read our guide below to learn how to use the free MP4 joiner to join several MP4 file together.
How to use the MP4 joiner freeware
Step 1: download and install the MP4 merger freeware. You can uncheck the "Install Format Factory to system menu" and "Install Picosmos Picture Tools" box during the free MP4 joiner installation process.
Step 2: Click "Utilities" and you'll see "Video Joiner" section. Click on "Video Joiner" to enter the MP4 video combination interface.
Step 3: Click "Add File" under "Source File List" category and select MP4 file to merge, and click "OK".
The Output Setting part gives options to choose format, quality and size.
Step 4: Click the red "Start" button to process MP4 file joining.