Free Online QOI to PNG Converter

Our image converter tool can quickly convert your QOI to PNG while maintaining the highest level of quality and can accept up to 20 files at one time using our batch image file processor. When your PNG image files are ready, you can either download them individually or, for convenience, combine them within a ZIP file.

Select File(s)

Or drag and drop your files here to upload.
A maximum of 20 files can be uploaded at once.

Please note: Your QOI file, once uploaded to our server, will be deleted 15 minutes after upload, so please download your converted QOI file before this time.

Once you've selected your QOI files for upload, our image converter tool will provide you with the option to customize the processing of your images. To configure this, once you have selected an image, you will see a button, which you can click to reveal a set of image conversion options. These options include the ability to resize and rotate your image and to apply a grayscale or negative filter to your QOI.

How to Convert your QOI to PNG Online?

Here are two simple steps to convert your QOI to PNG using our fast and free QOI converter tool.

Upload your QOI file

Click the "Upload a QOI File" button, then select a QOI to upload. The maximum file size is 100MB.

Download your PNG

Click the download link to receive your PNG file.

Frequently Asked Questions

How can I convert my QOI file to PNG?

First, click the "Upload..." button and select your QOI file to upload. Your QOI file will be uploaded to our servers. When the QOI to PNG conversion has completed, you can download your PNG file right away.

How long does it take to convert my QOI to PNG?

We aim to process all QOI to PNG conversions as quickly as possible; this usually takes around 5 seconds; however, this can be longer for certain files, so please be patient.

How accurate is the QOI to PNG conversion?

We aim to provide the best conversion experience. Our tools are under constant review and development, with new features being added every week.

Is there any loss in quality when converting my QOI file?

If you are converting your QOI file to a format that implements lossy compression, then yes, the quality will be reduced; however, the loss in quality is usually not noticeable and can result in much smaller file sizes.

Will the conversion affect the resolution of my converted QOI file?

No. When converting your QOI file, our tool will not perform any resizing of your image, and the resulting file will have the same resolution as your uploaded QOI file.

File format information for QOI and PNG

Extension	QOI
Full Name	Quite OK Image Format
Type	Image
Mime Type	image/qoi
Format	Binary

Extension	PNG
Full Name	Portable Network Graphics
Type	Image
Mime Type	image/png
Format	Binary
Opens With	Paint.Net, Photoshop

PNG files are a widely used graphics file format used in areas where high-quality images (often with transparency) are required while also retaining a small file size. They are one of the most common formats of file used for web and print mediums and are particularly useful for logos, icons, and other images where multi-level transparency is desired.

The format itself was created in the 1990's with the main aim of storing computer graphics in a high-quality format while minimizing the required storage space. The longer-term aim was to displace the GIF file format and make PNG the number one format for non-lossy, high-quality image formats on the then-burgeoning world wide web.

One of the selling points of the PNG format is its support for multiple levels of transparency, making it superior to the GIF format, which can only handle a single level of transparency. Also, like GIFs, the PNG format supports palletizing image colors down to 256 or 16 colors to help reduce the file size of the PNG.

Information for converting from QOI to PNG

Our QOI imaging tool will accurately convert your QOI file into a PNG image file using our high-quality internal 2D rendering to create your final PNG ready for download. Your QOI file will be analyzed pixel by pixel in order to produce the most accurate conversion possible.