AVI (Audio Video Interleave) is a popular video format, but it’s not always compatible with macOS apps like iMovie, Final Cut Pro, or QuickTime. If you need to play, edit, or share an AVI file on your Mac, converting it to a more Mac-friendly format (like MP4 or MOV) is the best solution.

In this guide, we’ll explore how to convert AVI video on Mac, including built-in tools, third-party software, and online converters.

Why Convert AVI Videos on Mac?

  • Compatibility issues – Some Mac apps don’t support AVI.
  • Large file size – AVI files are often uncompressed, taking up more storage.
  • Editing flexibility – Formats like MP4 work better in video editors.
  • Streaming & sharing – MP4 is widely supported by social media and websites.

Method 1: Convert AVI to MP4 Using QuickTime Player (Built-in)

QuickTime Player comes pre-installed on Mac and can convert AVI to MP4 or MOV if the file uses a supported codec.

Steps:

  1. Open QuickTime Player (Applications folder).
  2. Click File > Open File and select your AVI video.
  3. Go to File > Export As and choose MP4 or MOV.
  4. Select a save location and wait for the conversion to finish.

✅ Pros: Free, no installation needed.
❌ Cons: Limited codec support; may not work for all AVI files.

Method 2: Convert AVI with VLC Media Player (Free)

VLC is a versatile media player that also works as a video converter.

Steps:

  1. Download and install VLC (from videolan.org).
  2. Open VLC, then go to File > Convert/Stream.
  3. Click Open Media and select your AVI file.
  4. Under Choose Profile, pick H.264 + MP4 (MP4).
  5. Choose a destination folder and click Save.
  6. Press Start to convert.

✅ Pros: Free, supports most AVI codecs.
❌ Cons: Slightly complex interface.

Method 3: Convert AVI Using HandBrake (Free)

HandBrake is a popular open-source video converter with advanced settings.

Steps:

  1. Download HandBrake from handbrake.fr.
  2. Open the app and drag & drop your AVI file.
  3. Select a preset (e.g., Fast 1080p30 for MP4).
  4. Choose the output format (MP4 or MKV).
  5. (Optional) Adjust quality, resolution, or bitrate.
  6. Click Start Encode to convert.

✅ Pros: High-quality output, customizable settings.
❌ Cons: No batch processing in the free version.

Method 4: Online AVI Converter (No Installation Needed)

If you prefer a web-based tool, try CloudConvert or Zamzar.

Steps (Using CloudConvert):

  1. Go to CloudConvert.com/avi-to-mp4.
  2. Upload your AVI file.
  3. Select MP4 as the output format.
  4. Click Convert, then download the file.

✅ Pros: Works in any browser, no software needed.
❌ Cons: Requires internet; file size limits on free plans.

Method 5: Convert AVI with Movavi Video Converter (User-Friendly Paid Option)

Movavi Video Converter is a premium but easy-to-use tool for quick and high-quality conversions.

Steps:

  1. Download and install Movavi Video Converter from Movavi’s official site.
  2. Launch the app and click Add Media > Add Video, then select your AVI file.
  3. Choose an output format (e.g., MP4, MOV, or a device preset).
  4. (Optional) Use editing tools to trim, crop, or enhance the video.
  5. Select a save folder and click Convert.

✅ Pros:
Super intuitive interface
Supports batch conversion
Fast processing with hardware acceleration

❌ Cons: Paid software (free trial with watermarks)

Final Thoughts

Converting AVI videos on a Mac is easy with the right tool. For quick conversions, use QuickTime or VLC. For better quality and customisation, try Movavi Video Converter or HandBrake. If you need a no-download option, an online converter works well.