Image Tools
AVIF to PNG/JPG
Choose PNG or JPG and convert your AVIF images locally.
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Image Tools
PNG/JPG to AVIF
Convert PNG/JPG images to AVIF on your device. Review each result and download individual files or a ZIP.
PNG/JPG to AVIFOn-device processing
Preparing your tool…
How to use it
- 01Choose up to 8 supported images. File contents are checked instead of trusting the extension.
- 02Keep the required output format and adjust relevant optional settings if needed.
- 03Convert, review dimensions and actual file size, then download successful results.
Choose this conversion for the right reason
AVIF is a modern image format for compatible web workflows. A single-threaded libavif encoder loads when conversion is requested, with adjustable lossy color quality and lossless alpha. Encoding may take longer than JPG or WebP.
Files are processed one at a time in a worker to limit peak memory. Invalid or unsupported images are reported individually. Conversion changes format; it does not guarantee compression, remove a background or recreate missing source detail.
Practical check: Compare actual size and details with WebP or JPG, and verify that the receiving application accepts AVIF.
Useful details and limits
Creates a still, lossy 8-bit AVIF with lossless alpha. Encoding loads only after Convert. Maximum output: 4 million pixels. Limits: 20 MB per file, 40 MB input per batch and 120 MB combined results. General decoding is capped at 20 million pixels and 16,000 pixels per side. Metadata and color profiles are not preserved. Originals are not changed. A failed file receives its own error and does not stop the other conversions.
Questions about this tool
What kind of output does this tool create?
Creates a still, lossy 8-bit AVIF with lossless alpha. Encoding loads only after Convert. Maximum output: 4 million pixels.
What should I check before using the converted file?
Compare actual size and details with WebP or JPG, and verify that the receiving application accepts AVIF.
Are my images uploaded or stored?
No. Files, previews, conversion and ZIP creation remain on your device. A codec may load from Tool Fera when needed, but your image bytes are not sent with that request.
Understand the workflow
- JPEG, PNG, WebP or AVIF: choose the format for the job
Choose an image format by content and destination. Compare photos, text, transparency and browser support without assuming one format is always smallest.
- Image dimensions versus file size: pixels are not megabytes
Understand pixels, bytes, aspect ratio and compression. Choose resizing or quality changes for a real upload requirement and compare the final image.