YOUR EVERYDAY IMAGE WORKSPACE

Bulk WebP to AVIF Converter

Testing AVIF versions of existing website images. Convert a batch locally, inspect the results and download a ZIP.

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Free to useNo image uploadsNo account needed

Your images stay on your device

01 / PIXELSAAZ

A little less weight. A lot more room.

Processing stays on your device

Good images. Less baggage.

Drop your images here, or choose a batch from your device.

JPGPNGWebPAVIFHEIC / HEIF input

Shopify, Amazon, Daraz & more sizes

Your next batch starts here.

Preview, rename and download. All in one place.

Batch compressionLive progressZIP download

EXPORT SETTINGSAVIF · 92% quality

Your export settings

ON DEVICE

Download format

HEIC is accepted on upload. Save as JPG, PNG, WebP or AVIF.

Output locked to AVIF. Choose another format.

AVIF encoding takes longer. The local codec loads on first use.

Dimensions & platform sizes

Platform sizeOptional

Size your batch for Shopify, Amazon, Daraz, Etsy or eBay. Choose a preset before adding images, or re-compress an existing batch.

Some platform presets need JPG or PNG. Open all formats to use them.

Image dimensions

Keeps the full resolution. Files may stay large.

Quality & compression92%

Compression presetStart here

Image quality92%

Smaller fileMore detail

75% is a practical starting point for smaller files. Raise it when you need more detail.

File naming

Names update instantly for individual downloads and files inside the ZIP. No re-compression needed.

No uploads. No account.Everything is processed on your device.

Create AVIF delivery copies from WebP sources with a dedicated local encoder. Original dimensions and 92% quality are selected initially. Both formats can store transparency, but another lossy conversion can change fine detail and does not guarantee a smaller result. Compare real outputs before using them on a website.

How it works

Choose the WebP images needed for your AVIF workflow.
The page starts at original dimensions with AVIF output locked. Adjust dimensions or quality when needed, then use Apply & re-compress for existing files.
Compare the ready preview with the original and download individual AVIF files or the batch ZIP.

Tool comparison: WebP and AVIF

Source and output format comparison
Feature	WebP	AVIF
Workflow	WebP source files	Testing AVIF versions of existing website images
Background and alpha	Depends on the source image	An alpha channel is supported in the AVIF export
Resolution	Original decoded dimensions	Original dimensions initially; resizing is optional

Frequently asked questions

Is the downloaded file a real AVIF?

Yes. The converter uses a local WebAssembly AVIF encoder rather than renaming WebP or relying on an unsupported native canvas export.

Should I convert an already-small WebP to AVIF?

Only if the result helps your delivery workflow. Small or already optimized WebP files may gain little, while conversion can add another generation of loss. Compare size and visible detail first.

Are my WebP images uploaded for conversion?

No. The converter decodes, encodes and creates ZIP downloads on your device. Large images and batches still need sufficient local memory.

Can I rename all my AVIF downloads?

Yes. Keep original names, add a prefix, or choose a custom name plus number. The rule applies to individual downloads and the ZIP. Downloaded files use the actual exported format's extension.