Convert image files with our easy-to-use and free tool. Our tool lets you upload a QOI (Quite OK Image Format) file and, from this, create a new image saved in the JPG (Joint Photographic Experts Group) format that you can then download and edit within image file editors or use for high-definition printing applications. Our conversion tool can also batch convert multiple QOI image files; up to 25 files at a time can be converted.
Along with converting QOI image files to JPG, our tool allows you to also adjust the image with some simple effects, such as applying a grayscale filter to the image. These additional options are available within the Options tab. Along with grayscale, you can also mirror or flip the image if needed. For single QOI file uploads, you will also see options to resize and rotate your image.
This option can be used to rotate the image in 90° increments.
When selected, this option will flip the image vertically.
When selected, this option will mirror the image horizontally.
When checked, this will apply a grayscale filter to the image, turning any color image into a grayscale image.
When checked, this will apply a negative filter to the image, inverting all the colors within the image.
| Extension | QOI |
| Full Name | Quite OK Image Format |
| Type | Image |
| Mime Type | image/qoi |
| Format | Binary |
| Tools | QOI Converters, Create Cookie Cutter, QOI Viewer |
The QOI file format is a modern image format capable of storing full color (32-bit) images in a compact format, with file sizes of QOI files similar to those of a PNG file.
QOI files are designed first and foremost with encoding and decoding speed in mind. It is many times faster to encode or decode an image into the QOI format than other formats, such as PNG.
| Extension | JPG |
| Full Name | Joint Photographic Experts Group |
| Type | Image |
| Mime Type | image/jpeg |
| Format | Binary |
| Tools | JPG Converters, Create Cookie Cutter, JPG Viewer |
| Open With | Paint.NET, Photoshop |
The JPG file format is a popular image format most commonly used for the storage of digital photographs. The format implements a lossy-compression technology that allows for high levels of file compression with little perceptible loss of image quality, making it an ideal format for photographs.
This format is one of the most used on the internet today, with its small file sizes making it ideal for website images. Although there are newer image formats that may offer higher compression and quality, the JPG is still an ideal format for digital photos.
First click the "Upload..." button, select your QOI file to upload. Select any configuration options. When the QOI to JPG conversion has completed, you can download your JPG file straight away.
We aim to process all QOI to JPG conversions as quickly as possible, this usually takes around 5 seconds but can be more for larger more complex files so please be patient.
We aim to create the most accurate conversions with our tools. Our tools are under constant development with new features and improvements being added every week.
Yes, of course! We do not store the QOI file you submit to us. The resulting JPG file, once created is deleted 15 minutes after upload and the download link will expire after this time.
Yes! Our QOI to JPG tool will run on any system with a modern web browser. No specialist software is needed to run any of our conversion tools.
Yes. Although you can use an Ad Blocker, if you like our QOI conversion tool please consider white-listing our site. When an Ad Blocker is enabled there are some conversion limits on some of our tools and processing/conversion times will be longer.
Yes. When you have converted your QOI to JPG, there is a "Feedback" option that you can use to let us know of any issues you encountered when converting your file.
Yes! Our QOI tool supports full batch conversions. You can upload up to 25 and QOI files at a time. Our tool will convert them all as quickly as possible. Once completed, you can either download the JPG files individually or download them all in a single ZIP file.
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