Convert WebP to QOI Online Free
Convert WebP to QOI — a fast, lossless image format perfect for games and real-time applications.
ToFormat — free online converter
Upload your files
Max file size: 30MB · Up to 20 files at once
Why ToFormat?
Fast & Lossless
QOI (Quite OK Image) is designed for speed. It compresses losslessly with simple algorithms, making encoding and decoding extremely fast — ideal for real-time apps.
Excellent Compression
QOI achieves compression comparable to PNG but with much simpler code. Your WebP images become smaller without losing any quality.
Transparency Support
QOI supports RGBA with full alpha channel. If your WebP has transparency, it's preserved perfectly in the QOI output.
About the Formats
⚡ What is WebP?
WebP is a modern web format by Google (2010) with excellent compression. It supports lossy/lossless, transparency, and animation, but decoding can be slower.
All WebP conversion tools →⚡ What is QOI?
QOI (Quite OK Image) is a lossless image format created in 2021 by Dominic Szablewski. It features simple, fast encoding/decoding, good compression (often better than PNG), and supports RGB and RGBA. Designed for scenarios where speed matters.
All QOI conversion tools →How to Convert
Upload WebP
Drag and drop your WebP files. You can upload up to 20 at once.
Choose options
QOI is always lossless. Just select whether to include alpha (if your WebP has transparency).
Download QOI
Your QOI files are ready. Download individually or as ZIP. Files auto-delete in 10 minutes.
When to Convert WebP to QOI
🎮 Game Development
QOI's fast decoding is perfect for loading textures in games. Convert WebP assets to QOI for quicker load times and runtime performance.
💡 For GPU textures: try WebP to DDS →📱 Mobile Apps
On mobile, CPU time matters. QOI decodes faster than PNG, reducing app startup time and memory usage.
💡 For web: try QOI to PNG →⚡ Real-Time Applications
Any app needing instant image loading (UI frameworks, image viewers) benefits from QOI's simplicity.
💡 Alternative fast format: WebP to BMP →📂 Archiving Simple Graphics
For icons, UI elements, or pixel art, QOI offers lossless storage with good compression and fast access.
💡 Universal lossless: WebP to PNG →Format Comparison
| Format | WebP | QOI |
|---|---|---|
| Compression | Lossy | Lossless |
| Transparency | Yes | Yes |
| File Size | Smaller | Larger |
QOI is newer and less supported than PNG, but its speed is unmatched. For maximum compatibility, consider WebP to PNG. For games, WebP to QOI can be a game-changer.
💡 Pro Tips
- QOI is always lossless. You don't need to worry about quality settings — perfect for archival.
- Decoding QOI is extremely fast — often 2-3x faster than PNG. Great for games and real-time apps.
- The format is simple to implement — many developers add QOI support to custom engines easily.
- QOI files are typically 20-30% smaller than uncompressed BMP and often smaller than PNG for certain images.
- If your WebP is animated, QOI does not support animation. Use WebP to GIF instead.
- QOI supports RGBA transparency — we preserve full alpha channel from your WebP.
- For web delivery, QOI is not supported natively in browsers. Use PNG or WebP for websites.
How WebP to QOI Conversion Works
QOI is a simple lossless format that encodes pixel data using run-length encoding, differential encoding, and a small lookup table. When you convert WebP to QOI, our servers decode the WebP to raw RGB(A) pixels, then compress them using the QOI algorithm. The process is entirely lossless — every pixel is preserved exactly.
Because QOI is designed for speed, the conversion is very fast. Files are processed in memory and deleted after 10 minutes.
WebP vs QOI: Key Differences
WebP offers both lossy and lossless compression with excellent file sizes, and supports animation. Decoding WebP can be slower due to its complex algorithms. QOI is lossless only, with slightly larger files than lossless WebP, but decoding is much faster. QOI is also simpler to integrate into custom software.
Choose WebP for web delivery and compatibility; choose QOI for applications where decoding speed is critical, such as games or real-time systems.
QOI in Game Development
Game engines often need to load many textures quickly. QOI's fast decoding reduces level load times and texture streaming overhead. It's a drop-in replacement for PNG in many pipelines, with no patent issues.
You can also convert QOI back to other formats using our QOI to PNG or QOI to WebP tools when needed.