Pick an output based on how the image will be used
For photographs, JPEG is a widely compatible lossy format. PNG can retain transparency and exact encoded pixel values, making it useful for graphics. WebP and AVIF can be useful for web delivery when the tools and browsers in the workflow support them.
Converting a file does not necessarily reduce its size or preserve every property. Animation, transparency, metadata, color profiles, and visual detail can change depending on the decoder and encoder.
Convert an image with Pixuna
Open Image Converter, choose one or more image files, and select an output format. Adjust the quality control when it applies to the selected format, process the files, and inspect the output before replacing the original.
The converter offers JPEG, PNG, WebP, AVIF, BMP, HEIC, GIF, TIFF, and ICO choices. Browser canvas support varies, and unsupported output types may be encoded differently by the browser. Check the actual downloaded file in your destination application.
Preserve transparency and avoid surprises
Do not choose JPEG when transparent pixels must remain transparent; JPEG has no alpha channel. Use PNG or another format that supports transparency and confirm that the output retains it.
Converting a transparent image to JPEG may flatten transparent areas against a background. Keep the source copy and avoid repeated lossy re-exports if you need to preserve detail.
Validate compatibility
Open the result in the application or browser that will use it, and verify the filename extension, decoded format, dimensions, transparency, and visual quality. A filename suffix alone does not prove that the file was encoded in that format.
Pixuna’s image conversion happens in the browser. Video conversion is a different workflow that uploads the selected video to an online service.