Convert one image or a batch to PNG, optionally resize, and download successful results individually or as a ZIP.
Image Converter
Convert one image or a batch to PNG, optionally resize, and download successful results individually or as a ZIP.
About the PNG converter
Lossless bitmap output
PNG conversion is useful when the output needs transparency, sharp text, logos, or UI screenshots. The tool redraws the decoded bitmap and exports image/png, so there is no quality slider; the optional maximum-width setting only changes dimensions while preserving the aspect ratio.
Input support follows the browser
Input formats depend on your browser. Supported JPEG, PNG, GIF, BMP, WebP, or AVIF images are decoded and exported as fresh PNG files. You can process one image or a batch; output does not preserve animation frames or original container metadata.
Convert a batch and download the results
Select multiple images to enter batch mode, keep PNG as the output format, and optionally set a maximum width before starting. Each file shows its own status. Download successful PNG files individually or collect the currently completed results in a ZIP. Changing the format or settings clears old outputs; start again to convert from the original images.
FAQ
Common questions and answers about this topic.
Are my images uploaded to a server?
No. All conversion runs in your browser inside a Web Worker, so your images never leave your device or get sent to a server.
When should I use PNG instead of JPG?
Use PNG for screenshots, logos, line art, illustrations, and any image with sharp edges, text, or transparency. JPG is better for photographs since it compresses smoother gradients more efficiently with lossy compression.
Will transparency be preserved?
Yes. PNG fully supports an alpha channel, so transparent regions in WebP, AVIF, or original PNG inputs are preserved in the output. Inputs without alpha (such as JPG or BMP) will simply produce an opaque PNG.
How many images can I convert at once?
A batch can contain up to 20 images, but file size, total pixels, and available device memory also limit what can run. Check the warning shown before starting. If the batch is too large, remove some files or split it into smaller batches; 20 files is a count limit, not a guarantee that every set will fit.
What if some files fail, and what does the ZIP contain?
Check each file status and its error message. You can retry failed conversions or remove problem files; files rejected during the initial check must be removed or replaced. Successful results remain downloadable. The ZIP contains only completed outputs, not failed, canceled, or unfinished files, so check the completed count before downloading.