Convert PNG to QOI

In your browser
No upload
Private by design

What happens when you convert PNG to QOI?

Animation becomes a still

Still image output. Animated files use only the first frame; animation is not preserved.

HDR to SDR

HDR is rendered to SDR using exposure and Reinhard tone mapping.

Lossless sample storage

QOI preserves 8-bit RGB/RGBA samples losslessly. Reducing 16-bit data or discarding profiles and metadata before encoding is outside that guarantee. QOI can store its supported image samples without lossy compression. This applies after rendering and sample conversion: it does not guarantee preservation of source precision, colour space or document structure, and cannot undo earlier losses.

8-bit destination samples

Pixel conversion only. Original EXIF, GPS, XMP and ICC profiles are not copied; processing uses 8-bit display pixels.

PNG

Source

PNG

Portable Network Graphics

Compression: LosslessTransparency: YesMetadata: Exif, ICC, Text

Lossless raster images with precise edges and optional transparency. The PNG standard also defines APNG animation.

Explore PNG format →

QOI

Target

QOI

Quite OK Image Format

Compression: LosslessTransparency: YesMetadata: Colour-space flag

A small lossless codec for 8-bit RGB and RGBA images, designed for simple, fast implementations.

Explore QOI format →

Is PNG → QOI right for you?

Good choice when

QOI fits your delivery use: Application assets & simple decoding.
You want a still illustration from an animated source.
You need an SDR delivery copy and can review its tone mapping.
You need a transparency-capable destination and will check its supported variant.

Probably not when

Motion, frame timing or loop behaviour must survive.
You need the original HDR range for relighting or grading.
You assume format-level alpha support guarantees matching transparent edges.
You expect lossless encoding to restore lost details or editing structure.

Conversion considerations

An animated PNG has a timed sequence; QOI is a still-image destination in this workflow. A still export loses motion and timing. Frame choice, blending and disposal must be defined by the future engine; a first-frame export is not promised.
If HDR source content is exported through an SDR representation, it needs a display rendering. Values outside the output range require tone mapping, scaling or clipping; brightness relationships can change. Tone mapping, exposure and colour handling depend on the future engine. Renaming or lossless compression cannot preserve out-of-range values.
The reviewed QOI representation uses 8-bit colour samples. If the source contains higher-precision samples, they must be reduced before encoding, even in a lossless output mode. Rounding, dithering and colour conversion are future engine decisions; lost precision cannot be recovered from this output.

PNG to QOI conversion details

Animation becomes a still: Still image output. Animated files use only the first frame; animation is not preserved.
HDR to SDR: HDR is rendered to SDR using exposure and Reinhard tone mapping.
Transparency representation: The implemented target supports alpha. Display-pixel processing can round translucent samples; archival sample equality is not promised.
Lossless sample storage: QOI preserves 8-bit RGB/RGBA samples losslessly. Reducing 16-bit data or discarding profiles and metadata before encoding is outside that guarantee. QOI can store its supported image samples without lossy compression. This applies after rendering and sample conversion: it does not guarantee preservation of source precision, colour space or document structure, and cannot undo earlier losses.
8-bit destination samples: Pixel conversion only. Original EXIF, GPS, XMP and ICC profiles are not copied; processing uses 8-bit display pixels.
Sample precision & colour: Pixel conversion only. Original EXIF, GPS, XMP and ICC profiles are not copied; processing uses 8-bit display pixels.
Metadata & colour: Pixel conversion only. Original EXIF, GPS, XMP and ICC profiles are not copied; processing uses 8-bit display pixels.
Compression: PNG: Lossless → QOI: Lossless PNG: PNG compression is lossless. Palette conversion, resizing or reducing bit depth before encoding can still discard information. Animation is the APNG extension included in the third edition. QOI: QOI preserves 8-bit RGB/RGBA samples losslessly. Reducing 16-bit data or discarding profiles and metadata before encoding is outside that guarantee.
Transparency: Transparency is replaced with white by default. Change the background in Advanced options.
Animation: Still image output. Animated files use only the first frame; animation is not preserved.
Colour depth: PNG: 1–16 bits/sample → QOI: 8 bits/sample
HDR: PNG: Third-edition signalling
Dimensions: Rendered image dimensions are retained within the converter limits; this tool does not offer resizing. Orientation handling depends on the source decoder.
Metadata: Pixel conversion only. Original EXIF, GPS, XMP and ICC profiles are not copied; processing uses 8-bit display pixels.

Common questions

Will the output keep animation?

Still image output. Animated files use only the first frame; animation is not preserved.

How will HDR brightness be mapped?

HDR is rendered to SDR using exposure and Reinhard tone mapping.

Does lossless output mean an unchanged source?

Are bit depth and colour values guaranteed to match?

Pixel conversion only. Original EXIF, GPS, XMP and ICC profiles are not copied; processing uses 8-bit display pixels.

Will metadata and colour profiles be retained?

Pixel conversion only. Original EXIF, GPS, XMP and ICC profiles are not copied; processing uses 8-bit display pixels.

Convert PNG to QOI

Drop a PNG file here

What happens when you convert PNG to QOI?

Animation becomes a still

HDR to SDR

Lossless sample storage

8-bit destination samples

PNG

QOI

Is PNG → QOI right for you?

Good choice when

Probably not when

PNG to QOI conversion details

Common questions

Related conversions

Other targets for PNG

Other sources for QOI