AVIF Uploader – Upload, Display and Fix AVIF Images
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About
Upload AVIF images, display them correctly, and generate the sub-sizes WordPress leaves out.
Security History
What It Does
AVIF Uploader patches gaps in WordPress core so that AVIF image files can be uploaded, displayed in the media library, and processed into standard subsizes without errors. It does not convert existing JPEG or PNG files to AVIF, nor does it optimize or compress your images. Think of it as an enabler that turns on a format WordPress would otherwise reject.
Who It's For
This plugin suits site owners who already have AVIF files ready to upload (for example, photographers or designers exporting directly to AVIF) and need WordPress to stop blocking them. It is also a reasonable pick for developers maintaining sites where the client supplies AVIF assets and the media workflow must accept them by default.
Who Should Skip It
If you need automatic conversion of your existing JPEG and PNG library to AVIF, or built-in compression and lazy loading, this plugin is not the right tool. Anyone using a full optimization suite like Smush, Imagify, or Converter for Media already gets AVIF handling bundled in.
The Bottom Line
AVIF Uploader does one focused thing and does it freshly and compatibly, which makes it a sensible micro-plugin for sites with an existing AVIF workflow. The downsides are the very small user base, few independent ratings, and no support history, plus the fact that any decent optimization plugin already covers this ground. Use it as a lightweight patch, not as an image strategy.
Related Plugins
Pick Smush when you want all-in-one compression, lazy loading, and AVIF or WebP delivery handled from one dashboard rather than a bare uploader.
Choose Converter for Media if your priority is bulk-converting your existing media library to next-gen formats including AVIF, which this plugin does not do.
Go with Imagify when you want a hosted optimization service that includes AVIF output alongside aggressive compression for new and existing images.
Imsanity is a better fit when the main problem is oversized uploads eating disk space, with format support being a secondary concern.
Firelight Lightbox solves a different problem entirely, so reach for it when you need a polished image lightbox rather than format support.