8 AVI Joiners: How to Combine AVI Files into One

Combining AVI Files: User Queries

Q1. "I have around 20 avi files I'm trying to combine into one big file ranging from 500 mg to 1.4 gb and was wondering the best way to do this on mac. " - by AbilityOk1503 from reddit.com

Q2. "I have two .avi files I want to combine so I can get the TV episode order to show correctly. I thought Handbreak would do this but apparently it doesn't." - by vaporking23 from reddit.com

Combining AVI files can be surprisingly tricky due to their often complex structure. Often originating from older cameras, AVI files frequently contain multiple video, audio, and subtitle tracks encoded with various codecs like H.264, HEVC, VP8, VP9, and DivX. This codec diversity can cause problems for many video joiners, as they may lack support for all of them, resulting in import errors or combination failures. Additionally, users often want to combine AVI files while minimizing the file size or keeping the original quality, making the task even more complex. Therefore, many people are looking for a capable AVI joiner that can combine AVI files into one without errors or hassles. And in this post, we'll share the easiest and 100% working method to combine AVI files, along with 8 of the best AVI joiners.

How to Combine Two or More AVI Files without Quality Loss

Combining AVI files can be easy like walking in the park, provided you're using VideoProc Converter AI. This one of the best AVI joiners supports 420+ popular and rare codecs, ensuring you can easily edit and join AVI, MP4, WAV, WMV, and other types of videos from DSLRs, web, or whetever sources without error. Check some of its highligh features:

• Click to combine 2 or more large AVI files into one.
• 29-Quick editing features: trim, split, merge, rotate, etc.
• Auto copy for losslessly joining AVI files in one second
• Compress large AVI file size to your desired size.
• AI upscale/enhance old AVI fiels to reach 4K quality.

Step 1. Add AVI Files

Free download, install and run VideoProc Converter AI. Hit Video. Drag the AVI files from your computer into this AVI joiner.

Step 2. Choose the Output Format

In the Target Format section, choose any output format you want the joined video to be. You can clikc the Target Format option to find more output formats. VideoProc Converter AI provides you 420+ output formats and codecs for you to choose.

Tips:

1. Have no ideas which format you should use?

• For smaller file size, sharing, or error-free playback: We recommend using MP4 H.264.
• For lossless combining of AVI files: Select AVI format with the same codec as your original AVI files. For example, if your original files are AVI Divx, choose AVI Divx as the output format.

2. Need to customize video codec, resolution, frame rate, or other settings? Click the gear icon in the upper corner of the chosen format option and you can find a plenty of customizable setting options.

Step 3. Edit AVI Files (Optional)

Hit Edit Video and then you can use editing tools like rotate, flip, playback speed, effects, contrast/brightness/hue/ saturation, subtitle, cut, and trim to enhance and polish your AVI files.

Step 4. Export the Combined AVI File

Enable the Merge feature. (If you need to lossly combine AVI files, you should also enable the Auto Copy feature.) Click RUN to start combining two or more AVI files into one.

Best 8 AVI Joiners

1. VideoProc Converter AI

The best AVI joiner in the market is VideoProc Converter AI. This amazing program supports the import of over 370 video and audio formats, so it can handle the AVI files in whatever codecs, be the ancient codecs like MPEG-2 and DivX or the latest ones like H.264 and HEVC. The handy drag-and-drop feature lets you combine multiple AVI files into one single file as well as make basic edits with minimum effort. Even better, this easy video joiner offers an awesome auto copy feature, allowing you to combine, trim, cut and split AVI, MP4, MKV, MOV, and other files without re-encoding or quality loss.

2. VirtualDub

VirtualDub is an open-source video capture and processing program, designed for compressing and combining AVI files on Windows. If you're on MacOS or Linux, then you'll need to install Wing for running this free AVI joiner. Though VirtualDub supports the AVI format, it might fail to decompress the loaded AVI files since it's only compatible with several old video and audio codecs. Besides, it might not be able to recognize the installed codecs on your computer, and in this case, you need to install third-party codec packs to successfully load your AVI files. The interface of VirtualDub is very outdated, so beginners might have to climb up the learning curve to find where the video editing tools are and how these tools can be applied to optimize the AVI files.

3. Avidemux

Avidemux is an open-source and lightweight video editing program. Underneath a simple and clear interface lies plenty of useful video editing tools that can help beginners make quick and basic edits. This easy AVI joiner supports dozens of popular video and audio formats including AVI, MKV, MP4, 3GP, VOB, and MOV. However, it only supports a very limited number of output formats which doesn't let you output MOV, 3GP, VP8, and many prevalent formats. Thus, it's not possible to combine AVI files without re-encoding or quality loss.

4. VLC Media Player

If you need to combine some AVI files with the same codec, frame rate, and resolutions into one single video file and you don't need to make any basic edits like cut and trim, it's worth trying VLC media player. This free piece of multiple media player can be used as a simple AVI joiner to combine AVI files on Windows, Mac, Linux, and other mainstream platforms. Asides, this capable tool supports all audio and video formats that are compatible with libavcodec and libavformat, namely it can also be utilized to play and combine video files in MOV, WebM, MKV, MP4, and other formats.

5. AVI Joiner from 123Apps

AVI Joiner from 123Apps is a web-based video editor that supports combing multiple AVI files under 700MB into one without requiring users to pay a penny. Its interface looks like a desktop-based video editing program where you can find a timeline and an extensive list of editing tools including text, opacity, rotate, trim, background color, etc. From my test, it can load AVI files with H.264, HEVC, DivX, and other trendy codecs. Unfortunately, this online AVI joiner might cause perceivable quality loss cause it doesn't offer advanced options to optimize the output encoding settings and a free account is limited export AVI files in 720P. Even worse? It saves the exported file in the MP4 format rather than AVI.

6. VideoCandy

VideoCandy offers a collection of online video editing tools that will allow beginners and average users to polish and spice up their videos to make their videos shine. It comes with a straightforward video joiner, with which we can merge MP4, MKV, MOV, and AVI files as well as add simple transitions, background music, and background images.

Sadly, just like the majority of other online AVI joiners, VideoCandy doesn't support customizing the codec, quality, size, and other properties for the output video files. Worse more? It will combine your AVI files into an MP4 file. If you're looking for an AVI joiner that can combine multiple AVI files into one without changing the original format or noticeable quality loss, then VideoCandy is not for you.

7. BRIZ AVI Joiner

The UI design of BRIZ AVI Joiner is very outdated, which may make you mistake it for some kind of open source or even discontinued software. However, it's actually a paid program with a high price tag - $ 19.95. I said it's priced high because its only function is to combine AVI files. There're no extra editing tools like trim and cut. Let's say you need to split AVI files, then you need to purchase the extra AVI splitter which costs $19.95. Exporting the combined AVI file can also be a nightmare. It doesn't support the latest codecs like VP8, VP9, and HEVC. The output setting panel display many unexplained terminologies such as Profile @ Level, Encoding type, and Target quantizer.

8. ImTOO Video Joiner

ImTOO Video Joine is a simple and basic AVI joiner that comes with no additional features. Its interface is pretty straightforward and won't take more than 5 minutes to get used to. The support for dozens of other popular formats ensures you're able to combine AVI, MP4, WMV, 3GP, H.264, MOV, and other files without trouble. Plus, it preset tons of options for popular devices and platforms which helps beginners quickly combine AVI files for playing or sharing on iPhone, iPod, Apple TV, game consoles, web, etc.