QOI to PSD Converter
Convert QOI to PSD in your browser. QOI files usually come from game engines, emulators and tools that want lossless images without a PNG library; PSD is the better fit for editing in Photoshop. You get an 8-bit RGB Photoshop document with one layer and a merged composite, RLE compressed, with transparency kept. Nothing is uploaded.
- Processed locally
- No upload, no wait
- No sign-up
- No watermark
Drop images here
or choose files · paste with Ctrl/⌘ V
QOI expected · other image formats also work
How to use QOI to PSD
- 1
Add your QOI files: drop them here, choose them, or paste from the clipboard.
- 2
There is nothing to tune: the PSD is written losslessly. Resizing and rotating are under More options if you need them.
- 3
Click Convert. Each file is decoded and encoded in a background thread on this device.
- 4
Download the .psd files one at a time or together as a ZIP.
Why use Aback Images for qoi to psd
Where the PSD goes next
PSD opens in Photoshop, Affinity Photo, GIMP, Photopea and Krita.
PSD next to QOI
Both sides are lossless, so the size depends on how well the PSD encoder handles this picture compared with the QOI's lossless, byte-aligned run, index, difference and literal codes.
Written without a lossy pass
The PSD is written losslessly, so the pixels decoded from the QOI arrive unchanged.
Processed on your device
Your images are decoded, edited and encoded inside this browser tab by Web Workers. Nothing is uploaded to a server.
QOI vs PSD
What changes from QOI to PSD
Encoding: the QOI uses lossless, byte-aligned run, index, difference and literal codes; PSD uses raw or RLE (PackBits) channel data, ZIP in some 16 and 32-bit files, and the download is an 8-bit RGB Photoshop document with one layer and a merged composite, RLE compressed, with transparency kept.
Bit depth: 8 bits per channel in the QOI; PSD allows 8, 16 or 32 bits per channel, and the PSD written here has 8 bits per channel.
Colour: RGB or RGBA, tagged sRGB or linear in the QOI; PSD supports RGB, CMYK, Lab, greyscale, indexed or multichannel, written here as 8-bit sRGB.
Transparency: the QOI stores it as a full 8-bit alpha channel; the PSD keeps it as transparent layers plus extra alpha channels.
Metadata: the QOI can carry none: a 14-byte header holds only size, channels and colour space; PSD can carry XMP, EXIF, IPTC and ICC in image resource blocks, but nothing is copied across.
About QOI
QOI is a modern lossless format that encodes 20-50 times faster than PNG with similar file sizes. It is popular in games and tools that value speed and simplicity.
A QOI file is a 14-byte header ('qoif', width, height, channels, colour space), a stream of chunks that each encode a run, an index into 64 recently seen colours, a small difference from the previous pixel or a literal value, and an 8-byte end marker.
QOI files usually come from game engines, emulators and tools that want lossless images without a PNG library.
About PSD
PSD is Adobe Photoshop's layered working format. It keeps layers, masks and effects, but almost nothing outside Photoshop can display it, so finished designs are exported to PNG or JPG.
A PSD has five sections: a header ('8BPS', channel count, size, depth, colour mode), colour mode data, image resources (thumbnail, ICC, XMP, resolution), layer and mask information, and finally the merged composite image that the Maximize Compatibility option saves.
When converting QOI to PSD makes sense
PSD is the better choice for editing in Photoshop, while QOI suits fast lossless storage in games and tools.
PSD strengths: Keeps every layer and edit. Drawbacks to weigh: Huge files; Cannot be viewed on the web or most phones.
Limitations
- QOI is lossless, so the pixels you get out are exactly the ones that went in.
- The Photoshop document holds the picture as a single layer: a starting point for editing, not a reconstruction of layers.
- Photoshop, Affinity Photo, GIMP and Photopea open it.
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Frequently asked questions
Does converting QOI to PSD lose quality?
PSD is written losslessly, so the pixels are stored exactly as decoded.
Is transparency kept in the PSD?
Yes. QOI stores it as a full 8-bit alpha channel, and the PSD is written with an alpha channel, so transparent areas stay transparent.
Which apps open PSD files?
Photoshop, Affinity Photo, GIMP, Photopea and Krita. It does not open in web browsers.
Are my images uploaded anywhere?
No. Processing happens inside your browser with WebAssembly and Web Workers. The site only downloads the app code and codecs; your files never leave your device. You can confirm this with the live upload counter on the tool, or in your browser's network panel.
Can I process many files at once?
Yes. Drop a whole selection or folder. Files are processed in parallel on several worker threads, each result can be downloaded on its own, and everything can be saved as one ZIP.
Is it free? Is there a file limit or watermark?
It is free with no account, no watermark and no daily limit. The only limit is your device's memory: very large images (over roughly 100 megapixels) may be refused to keep the tab from crashing.