AVI Video Format Converters

Before you start

An AVI video format converter changes an AVI file into a more compatible format such as MP4 or MOV. This guide covers local conversion using desktop software. You need the AVI file available on the device, enough free disk space for the new file, and a converter that supports the version and codec inside your AVI. Keep the original file until you have checked the result.

Step-by-step instructions

The exact labels differ between tools, but the process is similar in most desktop converters.

• Open the converter and add the AVI file.
• Choose an output format such as MP4, MOV, or MKV. If the option is available, select a preset for the device or platform where the video will be used.
• Open the advanced settings before converting if you need to change resolution, frame rate, or bitrate. Leave these on automatic or source settings when you only need a compatibility change.
• Set the destination folder and output file name.
• Start the conversion and wait for the progress indicator to finish.

Some applications show separate controls for video and audio encoding. If the conversion fails or produces no audio, choose a common audio codec such as AAC or MP3. Avoid changing the recording format unless the target player requires it.

Check the output

Open the converted file in the player or editing tool where it will be used. Confirm that the picture and sound are synchronized throughout the file, not only at the start. Check the file size and duration against the original when possible.

If the program reports the details, compare the output resolution, frame rate, and bitrate with your chosen settings. A converted file may be larger or smaller than the AVI depending on the codec and encoding options. That difference alone does not mean the file is damaged.

Common problems and next steps

A common issue with AVI files is missing or unsupported codecs. If the converter cannot open the source, identify the video and audio codecs used in the file or try a converter with broader format support. When the output is too large, reduce the video bitrate or use a more efficient codec before converting again.

If the audio is out of sync after conversion, check whether the AVI was recorded with a variable frame rate. Some conversion tools handle that poorly. In that case, try another converter or change the output frame rate handling. If no tool can read the capture source correctly, repair or re-export the recording from the original camera or screen recording application.