How it works
Add your JPEG 2000 file. MimiFile checks the format, converts it to AVIF, and provides a temporary download when the result is ready.
Convert JPEG 2000 to AVIF with temporary processing. This page shows the supported input, output and current size limit.
JP2 → AVIF
Drag and drop, paste a file, or browse your device.
Files are temporary and deleted automatically.
Limits: 50 MB per file · 128 MB total per batch.
Add your JPEG 2000 file. MimiFile checks the format, converts it to AVIF, and provides a temporary download when the result is ready.
JPEG 2000 and AVIF can differ in compression, metadata, transparency, animation, container or codec support. The result follows the capabilities of AVIF.
Current source limit : 50 MB per file. Up to 10 files can be submitted in a batch, subject to the global batch ceiling.
JPEG 2000 is accepted here as image/jp2. The current source-file limit is 50 MB.
The result is produced as AVIF (image/avif). Features unsupported by the destination format cannot be preserved.
Use this when a service, device or workflow accepts AVIF but your source file is JPEG 2000.
JPEG 2000 and AVIF are not interchangeable containers. MimiFile decodes the visible image from JPEG 2000, normalizes it and writes a new AVIF file. AVIF is useful when reducing delivery size matters and the destination software supports modern AVIF decoding.
JP2 is processed as one static image for this conversion. Orientation is applied before the output is written, so the pixels are saved in the displayed orientation. Embedded metadata is stripped from the converted image.
AVIF supports compressed image encoding; the final size and visual fidelity depend on the encoder settings and the source content. MimiFile currently writes AVIF with an encoder quality setting of 82. AVIF can carry transparency, so an alpha channel present in the decoded source can be retained.
AVIF is useful when reducing delivery size matters and the destination software supports modern AVIF decoding.
Compare the AVIF result with the original JPEG 2000 before replacing your source, especially when color, transparency, small text or fine photographic detail matters.
The downloaded file uses AVIF. Check the result if the source contains transparency, animation, embedded fonts, metadata or other format-specific features.