PNG to QOI — Format Comparison & Online Converter
Fast, instant PNG to QOI conversion. No signup required. Just drop your .png file and get .qoi in seconds.
Batch Settings
在数字图像的世界里，兼顾文件大小与画质始终是大家关注的焦点。PNG作为一种无损格式，画质出色，但文件往往偏大，在传输或存储时可能会遇到一些不便。而QOI（Quite OK Image）作为一种新兴的无损图像格式，以其更小的文件体积和极快的编解码速度，正逐渐受到大家的青睐。它不仅能保持图像原有的细节和色彩，还能有效节省存储空间和带宽。如果您经常需要处理大量图片，或者希望在不牺牲画质的前提下提升加载速度，那么将PNG转换为QOI，无疑是一个值得尝试的优化方案。我们提供的转换工具操作简便，几步即可完成，让您的图片处理更加高效。
- 微信分享提速
- 游戏素材优化
- 移动端应用图片加载
QOI格式在亚洲地区，尤其是在注重效率和移动体验的中国大陆、台湾和新加坡市场，因其出色的性能表现，正被越来越多的开发者和内容创作者所关注和采纳。
About PNG to QOI Conversion
PNG (introduced 1996) and QOI are both image formats, but they differ in important ways. PNG uses lossless compression and supports transparency, making it perfect for graphics, logos, and screenshots. QOI is a widely used file format.
When you convert PNG to QOI, the goal is to convert between formats quickly. Converting PNG to QOI maintains high quality with CocoConvert's optimised encoder settings. Understanding these technical differences helps you choose the right format for your workflow.
Your PNG file is decoded and re-encoded as QOI. The conversion involves 4 steps: (1) your png file is uploaded and validated, (2) the file is decoded (parsed into its raw data), (3) the data is re-encoded in qoi format, (4) the converted file is ready for download.
CocoConvert's converter handles the entire pipeline server-side using FFmpeg, Sharp, and qpdf — battle-tested libraries used by streaming platforms and enterprise tools. Files are encrypted in transit and deleted within 24 hours.
This conversion is ideal when you When you need a QOI file. For the opposite direction, CocoConvert also supports QOI to PNG conversion.
How to Convert PNG to QOI
- 1
Upload .png file
Select your PNG file by dragging it to the upload zone or using the file picker. Batch upload is available for multiple files.
- 2
Choose .qoi
Set QOI as the output format. The converter uses optimal settings based on the PNG→QOI conversion profile.
- 3
Convert
The server-side engine decodes your PNG file and re-encodes it as QOI. Processing time depends on file size and complexity.
- 4
Download result
Grab your converted .qoi file. Multiple output files can be downloaded together.
What Happens When You Convert PNG to QOI
Your PNG file is decoded and re-encoded as QOI.
Your PNG file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in QOI format
The converted file is ready for download
Format Comparison
PNG
.png file
| Extension | .png |
| MIME Type | image/png |
| Category | Image |
QOI
.qoi file
| Extension | .qoi |
| MIME Type | image/qoi |
| Category | Image |
Should You Convert PNG to QOI?
When to Convert
- ✓When you need a QOI file
Frequently Asked Questions
What is the difference between PNG and QOI?
PNG uses lossless compression and supports transparency, making it perfect for graphics, logos, and screenshots. QOI is a widely used file format.
Does PNG to QOI conversion affect quality?
Converting PNG to QOI maintains high quality with CocoConvert's optimised encoder settings.
Which format has better compression, PNG or QOI?
PNG uses lossless compression. QOI is widely supported. The better choice depends on whether you prioritize file size or quality.
How long does PNG to QOI conversion take?
Most conversions finish in seconds. Larger files or complex image content may take 10–30 seconds. CocoConvert processes files in parallel for batch jobs.
Is PNG or QOI better for long-term storage?
PNG is better for archival since it's lossless.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.