Free Online PNG to QOI Converter

Our image converter tool can quickly convert your PNG to QOI 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 QOI 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 PNG file, once uploaded to our server, will be deleted 15 minutes after upload, so please download your converted PNG file before this time.

Once you've selected your PNG 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 PNG.

How to Convert your PNG to QOI Online?

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

Upload your PNG file

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

Download your QOI

Click the download link to receive your QOI file.

Frequently Asked Questions

How can I convert my PNG file to QOI?

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

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

We aim to process all PNG to QOI 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 PNG to QOI 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 PNG file?

If you are converting your PNG 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 PNG file?

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

File format information for PNG and QOI

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 colours down to 256 or 16 colours to help reduce the file size of the PNG.

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

Information for converting from PNG to QOI

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