Why choose AVIF?
AVIF can compress photographic content efficiently. Quality and resizing controls help create an image suitable for your own website or sharing workflow.
What changes in this conversion?
AVIF encoding takes more time and memory than JPEG or PNG. Smaller output is not guaranteed, and older software may not open AVIF. An already compressed JPEG cannot regain lost detail.
How to convert JPG to AVIF
- Choose a still JPG file with the file picker, or drag it into the workspace.
- Select AVIF as your output format. Resize to the dimensions your page uses, then compare the result at its intended display size. Keep the original JPEG for editing and compatibility.
- Choose Convert, then download your file. For a batch, Download ZIP collects successful results.
Limits and browser compatibility
A tested single-threaded WASM encoder supplies AVIF output independently of native canvas support. Output is lossy 8-bit SDR sRGB, up to 16 MP within the device’s pixel and memory budget. Mobile and low-memory devices may need smaller images. No accounts, uploads, external codec requests or special cross-origin isolation headers are needed.
Why does AVIF encoding take longer?
AV1 compression does more work than JPEG encoding. The worker keeps the interface responsive; cancellation terminates the encoder worker.
Will AVIF always be smaller than JPG?
No. Size depends on image content, quality and dimensions. Compare your downloaded result rather than relying on a fixed percentage saving.
Does my file leave my device?
No. The worker reads your file locally and creates your download in browser memory. Original metadata is always removed. The output uses 8-bit sRGB pixels.
Can I convert a batch?
Yes. Select up to 24 files within the 256 MB batch limit. Each file is processed separately, so a failed image does not prevent the others from completing.