Merge Videos Fast with Online Video Mergers

What is video lossy or lossless merging?

Video lossy merging: refers to re-encoding each video before merging.

In general, since the encoding method used by the video is a lossy compression mode (after re-encoding, the image quality will be more or less affected), so re-encoding the video and then merging is also called lossy merging.

Lossless video merging: It refers to merging directly without re-encoding each video, which will not affect the quality of the video.

What can go wrong with video lossy merging?

Video can actually be regarded as a collection of bitmaps, and the size of the bitmap itself is very large, so the video without any compression processing will naturally be large in size.

When the video is lossy combined, in order to improve the compression efficiency, the video will be compressed in a lossy way. Although this compression algorithm will directly reduce the color richness of the video, it also reduces the video volume to a certain extent. .

How to merge multiple videos online?

“ACONVERT.COM” is a powerful online multimedia editing website, which can edit all kinds of PDF, documents, e-books, images, icons, videos, audio and compressed files online.

Note: Since the method of merging videos on this site is lossy merging, it may result in reduced video quality and sound quality.

1. First open ACONVERT.COM on the browser, select Video and check Merge.

Note that the supported video formats include MP4, AVI, FLV, MPG, MKV, WMV, M2TS, WEBM, ASF, MOV, M4V, RM, VOB, and OGV, and the video file size is limited to 1GB.

2. Select files one by one in order, and finally click Submit.

For example, the video files you want to merge are A, B, and C. After you add files one by one in order and press “Submit”, the output video file will be the video file combined by A+B+C. Note that the format of the video submitted here must be consistent.

3. After the video files are merged successfully, you can choose the way to download the files according to your needs. Please save the video locally as soon as possible as this site deletes the merged video after an hour.

What's wrong with merging videos online?

As we all know, when you merge videos online, you also actively upload the files to other people’s servers, so your information is likely to be leaked by someone with a heart. In order to avoid this situation, offline multimedia editing software may be a better choice.

How to merge multiple videos offline?

As mentioned above, although “ACONVERT.COM” is a very convenient online multimedia editing website, when it merges videos, the format of the videos must be consistent, which makes some users who need to merge different video formats use other encoding tools to make adjustments to the video. In the process, the quality of the video may also degrade.

Renee Video Editor Pro will first detect the added video, as long as conditions permit, it will give priority to the non-destructive method to merge the video.

If the source of the video is inconsistent, then when re-encoding it, it will automatically re-encode it without affecting the video quality, without requiring users to use complex encoding tools again. Bit rate and frame rate are reset. In addition, this software has no limitation on the size of the video.

Merge Video Files - Common Effects

1. Open Renee Video Editor Pro and select Video Toolbox.

2. In order to prove that this software can indeed merge video files in different formats losslessly, we first convert MKV videos to MP4 videos, and then merge them.

After Add Files, select Output Format and Output Folder. And then press the button Start to start converting video formats.

3. Click on Add files again and check Merge all files into one.

4. If you want to add a transition effect in the middle of the merged video, you can press the button Transition on the right.

This software has nearly a hundred transition effects to choose from, here we choose Blend/Pan and Zoom out effect with a duration of 1 second.

5. After confirming the transition effect, you can press the button Start to merge the videos.