Convert M8 to AVIF

M8 to AVIF made simple. Add files or folders, pick your settings, click Convert. reaConverter handles the rest — even thousands of files.

Online converters too slow for your M8 files? reaConverter works locally and handles unlimited batches. All processing runs locally on your PC, so your files stay private and secure.

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M8 to AVIF
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How to Convert Multiple M8 Files to AVIF?

1. Download and Install reaConverter

Download reaConverter and install it in seconds. The setup is straightforward — no complex configuration, no extra software required.

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Install reaConverter

2. Load your M8 files

Open reaConverter and add your M8 files. You can load individual files, entire folders, or even nested subfolders.

Drop your M8 files into the window or use File menu to browse and select folders.

Load your M8 files into reaConverter

3. Select AVIF as output format

Choose AVIF as the target format. Pick a destination folder or let reaConverter save files alongside the originals.

Select AVIF as output format

4. Start M8 to AVIF conversion

Hit Convert and let reaConverter do the work. The progress window shows status for each file in real time.

Start Conversion

After conversion, find your AVIF files in the output folder. Click 'Show converted files' to open it directly.

M8 to AVIF Converter

reaConverter offers the fastest, simplest solution for converting your M8 files into AVIF in seconds - all files processed on your PC for maximum privacy and speed.

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Do more with your files

Converting M8 files for use in a workflow? reaConverter offers many ways to process files, so you can customize them according to your requirements.

Our range of editing options includes auto-processing options such as auto-rotate, auto-crop, watermarking and more. Change Color Space, copy Metadata, set DPI, manage ICC Profile, control Bit Depth.

Conversion features
Image editing

User Reviews

Average User Rating:
Last updated on January 25, 2026
"Twitch thumbnails keep saving as AVIF and my editing software freaks out. reaConverter swaps them to JPEG instantly. Now I can actually post my ‘🔥HOT TAKES🔥’ without crying over file errors."
Amy Li
Amy Li
Content Creator
"Google Photos auto-saved my pics as AVIF files that won’t open anywhere. reaConverter rescued 3 years of memories AND kept the quality. Take that, ‘innovation’!"
Derek Snyder
Derek Snyder
Satisfied Customer
"We deployed reaConverter across our department to standardize file formats for our archives. The command-line support and automation features integrated perfectly into our systems. Stellar performance and zero crashes—it just works."
David R.
David R.
IT Solutions Architect
"So simple! I just needed to convert a couple of files to another format, and for such a straightforward task, the online converter worked perfectly — delivering the files I needed in no time. Excellent service!"
Kenneth D. Carter
Kenneth D. Carter
Satisfied Customer
"I run a small design agency, and reaConverter has saved me countless hours. The batch processing is lightning-fast, and the ability to convert hundreds of files into different formats at once is a game-changer. Highly recommend!"
Mark T.
Mark T.
Satisfied Customer
"An excellent program! I use it regularly in my work - it supports nearly every file format imaginable. The interface is intuitive and runs flawlessly every time."
Roger Cook
Roger Cook
Happy User

M8 to AVIF Conversion: FAQ

What are M8 files?

M8 is an image format associated with Heretic II, a popular video game from the 1990s. Heretic was considered an innovative first-person shooter at the date of its release, introducing several features that were previously unavailable in video games. An M8 file is also called a MipMap file, containing data related to textures used in the game.

What are AVIF files?

AVIF is a new image format launched at the end of 2020. AV1 Image File Format was developed by the Alliance for Open Media in collaboration with Netflix, Google and Cisco. This format was created to be an open-sourced and royalty-free image format with a super-compression efficiency. Multiple graphics compression tests show that the .avif format outperforms the JPEG, PNG and WebP image formats for its image quality to compressed file size ratio.

Can reaConverter convert M8 to AVIF?

Yes! reaConverter instantly converts .m8 to .avif with perfect quality preservation. With its batch processing feature, you can convert multiple files at once in just a few clicks. You can even convert images directly from Windows Explorer using the right-click menu — fast and convenient.

Can I convert M8 to AVIF online?

If you only need to convert a few M8 files to AVIF format, feel free to try our free online free online M8 to AVIF converter — perfect for small batches with no installation needed!

How can I turn M8 files into AVIF on my computer?

The best way to change M8s to AVIFs on your PC is to install a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from M8 to AVIF.

How can I automate M8 to AVIF files conversion?

reaConverter supports all the most useful automation features such as right-click сonversion and Watch Folders for the most efficient automated files conversion in any software of this type.

Is there a way to convert M8 files to AVIF using the command prompt?

reaConverter provides full access to all its features via Windows command line, including a high-performance command-line m8 to avif converter for batch processing.

What else can I do with reaConverter?

Convert RAW formatsSet file dateConvert GIS filesConvert CAD formatsSet picture bit depth

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