QOI to PNG Converter

KkConvert provides a free, secure, and fast QOI to PNG conversion tool that runs entirely in your browser. Your files never leave your device — all processing happens locally using modern web technologies. Supports batch conversion of up to 50 files at once.

Drag & drop QOI files here

or click to browse (max 50 files)

How to Convert QOI to PNG

Upload Files

Drag and drop your files or click to browse. Up to 50 files at once.

Adjust Settings

Set quality or other options if needed. Default settings work great.

Download

Click convert and download your files individually or as a ZIP.

Key Features

100% browser-based — no server uploads
Batch conversion up to 50 files
Adjustable quality settings
Download as ZIP for bulk results
Free, no registration required

Privacy & Security

All processing happens in your browser
No files are uploaded to any server
No data is collected or stored
Works offline after page loads

What is QOI (Quite OK Image Format)?

Definition

QOI is a fast, lossless image format designed for maximum encoding/decoding speed.

Features

•Extremely fast encoding/decoding
•Lossless compression
•Simple specification
•RGBA support

Advantages

✓40-50x faster than PNG
✓Good compression ratios
✓Tiny implementation (~300 lines)

Use Cases

▶Game development
▶Real-time applications
▶Embedded systems

How to Open

QOI-compatible viewers, custom tools.

Developer & Release

Created by Dominic Szablewski. Released in 2021.

What is PNG (Portable Network Graphics)?

Definition

PNG is a lossless image format supporting transparency, widely used for web graphics and screenshots.

Features

•Lossless compression
•Alpha channel transparency
•Up to 48-bit color depth
•Interlacing support

Advantages

✓Perfect for graphics and text
✓No quality loss on re-saving
✓Excellent transparency support

Use Cases

▶Web graphics and logos
▶Screenshots
▶Images requiring transparency

How to Open

All image viewers, web browsers, and operating systems.

Developer & Release

Developed as a replacement for GIF. Released in 1996.

Frequently Asked Questions

How do I convert QOI to PNG?

Simply drag and drop your QOI files onto the upload area or click to browse. Adjust quality settings if needed, then click "Convert All". Your files will be converted and available for download instantly.

Is the conversion free and secure?

Yes! KkConvert processes all files entirely in your browser. No files are uploaded to any server, making it 100% private and secure. The tool is completely free with no registration required.

Can I convert multiple files at once?

Yes! You can upload and convert up to 50 QOI files simultaneously. Download individual files or all results as a single ZIP archive.

What is the quality of the converted PNG files?

The conversion preserves high quality. For lossy formats like PNG, you can adjust the quality slider (10-100%) to balance file size and quality. For lossless formats, no quality is lost during conversion.