PCX to QOI converter
A free PCX to QOI converter for PiCture eXchange files. Browser-based pairs here usually run in this tab, with no file upload.
Drop your PCX files here
or browse your device · paste with Ctrl+V
Accepts .pcx files. You can queue several files; each is processed one after another on your own device.
Your files never leave this device — there is no upload and no server to delete them from.
- 01
Add your PCX files
Drop them onto the box above or click to browse. They are read straight from disk — nothing is sent anywhere.
- 02
Check the settings
QOI is already selected. Open the gear icon on any row if you want to change quality, dimensions or codec before converting.
- 03
Download your QOI
Press convert and wait for the row to finish. Convert several files and you can take them all as a single ZIP.
PCX
PiCture eXchangeOne of the first widely used PC image formats, from the DOS paint-program era. Simple run-length compression and a hard 256-colour ceiling.
- Developed by
- ZSoft
- Released
- 1985
- Extension
- .pcx
- MIME type
- image/x-pcx
- Compression
- Lossless
QOI
Quite OK Image FormatA lossless format whose entire specification fits on one page, encoding and decoding many times faster than PNG for a small size penalty. A favourite in game engines and hobby projects.
- Developed by
- Dominic Szablewski
- Released
- 2021
- Extension
- .qoi
- MIME type
- image/qoi
- Compression
- Lossless
- Specification
- Open
- Both PCX and QOI store every sample exactly, so nothing here is re-compressed — only the container changes.
Questions about converting PCX to QOI
Is this PCX to QOI converter free?
Yes. Converting PCX to QOI here is free, with no account, no watermark and no daily quota. The work runs on your own device, so there is no server cost to pass on to you.
Is my PCX file uploaded anywhere?
For browser-based pairs, your file is read locally and converted by Squoosh in this tab. No file payload is uploaded; you may still see analytics and engine downloads in network logs.
Is there a file-size limit for PCX to QOI?
There is no imposed upload cap when it runs in-browser, but each conversion still depends on your device and browser memory. Large videos are the first practical limit, then memory-heavy documents or images.
Does converting PCX to QOI lose quality?
No. QOI stores its data losslessly, so everything in your PCX file is preserved exactly.
Can I convert several PCX files to QOI at once?
Yes. Drop in several files and each gets its own row; they are processed one after another on your device. You can download them one by one or as one ZIP.
Does PCX to QOI work on a phone, Mac or Chromebook?
Most modern browsers on Windows, macOS, Linux, ChromeOS, Android and iOS work. Very large videos are often more reliable on desktop or a browser with more memory.
Why do some conversions take longer on first run?
The conversion engine has to download first. Small codec bundles are fast, while ffmpeg is commonly 12–30 MB; later conversions of similar type use the cached engine.
I converted a file and the output is blank or unusable. What should I check?
Start over with default settings, then change one option at a time (quality, bitrate, page size, or codec) to isolate what changed behavior. If it keeps failing, retry with a smaller file and confirm the source format matches the pair.
Convert other formats to QOI
16 formats can become QOI here.
Convert PCX to other formats
A PCX file can become any of these.
QOI to PCX
The reverse conversion
PCX to JPG
PCX to PDF
JPG to QOI
Images to PDF
Turn photos or scans into a single PDF document.…
Compress Image
Make images smaller while keeping the same format.…
Resize Image
Change the pixel dimensions of one image or a whole …
Rotate & Flip Image
Turn images by 90 degrees or mirror them.…