Convert IFF to AVIF

Need to convert hundreds of IFF files to AVIF? reaConverter does it in one click. No file limits, no watermarks, no internet required.

Need to convert IFF to AVIF? reaConverter handles batch conversion with ease, processing hundreds of files at once while preserving quality. Your files never leave your machine. No third-party servers, no privacy concerns.

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How to Convert Multiple IFF Images to AVIF?

1. Download and Install reaConverter

reaConverter installs quickly on any Windows PC. No dependencies, no bloatware — just a clean setup that's ready to use immediately. Apply image edits like resize, crop, or color adjustment while converting.

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Install reaConverter

2. Load your IFF files

Launch reaConverter and load the IFF files you want to convert. Add a few files or thousands, batch processing handles them all.

Drag-and-drop IFFs directly into reaConverter or use the folder browser to load entire directories.

Load your IFF files into reaConverter

3. Select AVIF as output format

Set AVIF as output format and select where to save your converted files. Customize quality settings if needed.

Select AVIF as output format

4. Start IFF to AVIF conversion

Press Convert to begin processing. You can watch the progress or minimize and let it run in the background.

Start Conversion

Your converted AVIF files will appear in the destination folder as soon as processing completes.

IFF to AVIF Converter

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

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Do more with your images

Converting IFF images for use in a larger project? With reaConverter, you can convert, edit, and enhance your images in one streamlined process.

Our range of editing options includes such image processing actions as Resize, Rotate, Crop, Color Replace, Watermarks and more. Adjust actions include RGB, HLS, HSV, Brightness and Contrast. Auto-processing options are also available, such as auto-rotate and auto-crop.

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User Reviews

Average User Rating:
Last updated on January 15, 2026
"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
"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
"This software just works! My old laptop can’t handle Photoshop, but reaConverter flies through conversions without breaking a sweat. Wi-Fi gone? Still strong!"
Robert Williams
Robert Williams
Happy User
"Rare software that actually does it all! Converts anything, beautiful interface, and never lets me down. A must-have!"
Henry R.
Henry R.
Happy User
"For cross-platform compatibility, JPEG remains the gold standard. reaConverter’s precision conversions ensure perfect results every time, whether for presentations, websites, or client deliverables."
Paul Baker
Paul Baker
Happy User
"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

IFF to AVIF Conversion: FAQ

What are IFF files?

IFF is an old image format associated with Amiga computers — a brand connected to Commodore, which used to be popular in the 1980s and 1990s. Commodore was one of the first types of personal computers to gain wide popularity among home users. An IFF file most likely contains an image that was created or edited using an image handling program on an Amiga computer. IFF files are currently considered obsolete and uncommon, so opening them with regular image viewers might be difficult.

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 IFF to AVIF?

Yes! reaConverter instantly converts .iff 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.

What is reaConverter used for?

reaConverter is a software program used for converting images and other types of files from one format to another. It supports a wide range of file formats and allows users to convert multiple files at once, making it a valuable tool for graphic designers, photographers, and other professionals who work with digital images. reaConverter also includes features for resizing, cropping, and editing images, along with batch processing capabilities that help automate repetitive tasks.

Can I convert IFF to AVIF online?

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

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

The best way to change IFFs 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 IFF to AVIF.

How can I automate IFF 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 IFF 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 iff to avif converter for batch processing.

What else can I do with reaConverter?

Change format settingsChange DPISet manual file dateConvert PDF filesWatermark picture

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