QOI File

What are QOI files and how to open them

Are you having problems opening a QOI file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a QOI file?

A .QOI file is a Quite OK Image Format Bitmap file.

Quantifying quality, optimizing output. QOI is an image format that melds the best of precision and speed. It both compresses losslessly, while encoding and decoding considerably faster than other formats.

Because it’s fast, simple and small, QOI can be integrated easily into any project. Plus its single-page spec makes implementation as straightforward as filling in the blanks.A reference en-/decoder fits in 300 lines of C.

How to open QOI files

Important: Different programs may use files with the QOI file extension for different purposes, so unless you are sure which format your QOI file is, you may need to try a few different programs.

While we have not verified the app ourselves yet, our users have suggested a single QOI opener which you will find listed below.

Last updated: February 9, 2023

Various apps that use files with this extension

These apps are known to open certain types of QOI files. Remember, different programs may use QOI files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about QOI file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.