AVIF PNG 変換 - 透明度保持対応
透明度を保持したまま、AVIFファイルを高品質なPNGに変換。100%無料で安全なクライアント側変換。
AVIFファイルをここにドロップ
またはクリックして選択。最大30ファイルまで。1ファイル10MBまで。
100% クライアントサイド処理で安全AVIFをPNGに変換する方法（透明度保持）
AVIFアップロード
.avifファイルを上のボックスにドラッグ&ドロップしてください。
フォーマット選択
JPG、PNG、またはWebPを選択し、品質設定を調整してください。
ダウンロード
変換された画像を個別またはZIPで即座にダウンロードできます。
AvifKitでAVIF PNG変換を選ぶ理由
Preserve transparency and quality in every conversion.
Client-side Privacy
Your AVIF files are converted to PNG entirely in your browser. No images are uploaded to any server – your data stays private.
Blazing Fast
Zero upload time. Zero download wait. Our WebAssembly engine handles the conversion instantly with full alpha channel support.
Lossless PNG Quality
PNG is a lossless format – every pixel is preserved perfectly. Transparency (alpha channel) from your AVIF files is maintained in the PNG output.
See the Difference: AVIF vs PNG
AVIF achieves much smaller file sizes than PNG. Converting to PNG gives you lossless quality with full transparency support for design work.
Drag the slider to compare image quality
When Do You Need PNG Format?
Transparent Graphics
Logos, icons, and UI elements with transparent backgrounds need PNG format. The conversion preserves the alpha channel perfectly.
Design & Editing
Photoshop, Figma, Sketch, and other design tools have full PNG support. Convert your AVIF files for seamless integration into your design workflow.
Screenshots & Documentation
PNG's lossless compression makes it ideal for screenshots, diagrams, and technical documentation where text clarity matters.
Print-Ready Graphics
PNG preserves every detail without compression artifacts. Convert AVIF graphics to PNG when you need pixel-perfect output for printing.
AVIF vs PNG – What's the Difference?
Choose the right format based on your specific needs.
| Feature | AVIF | PNG |
|---|---|---|
| Compression | Lossy & lossless (AV1) | Lossless only |
| File Size | 30-50% smaller | Larger (uncompressed pixels) |
| Transparency | Yes (alpha channel) | Yes (alpha channel) |
| Quality | Adjustable | Always lossless |
| Browser Support | Chrome, Firefox, Edge, Safari 16.4+ | Universal |
| Software Support | Limited | Universal |
| Best For | Web delivery & storage | Graphics, logos, screenshots |
| Color Depth | 8-bit, 10-bit, 12-bit | 8-bit, 16-bit |
Tool Specifications
Frequently Asked Questions
Yes! PNG fully supports the alpha channel. All transparent areas in your AVIF images will be perfectly preserved in the PNG output.
Yes, PNG uses lossless compression. Every pixel is preserved exactly as-is. This makes PNG ideal for graphics, logos, and screenshots where quality matters most.
Absolutely. Avifkit uses client-side processing technology. Your images are converted directly within your web browser memory and are never uploaded to any external server.
PNG uses lossless compression while AVIF uses advanced lossy compression (AV1). AVIF files are typically 30-50% smaller than PNG at similar visual quality. The trade-off is that PNG preserves every single pixel perfectly.
Yes! Avifkit works in any modern mobile browser (Chrome, Safari, Firefox). The conversion happens on your device, so no data is transferred over the network.
Each file can be up to 10MB. Since processing happens entirely in your browser, larger files may take slightly longer depending on your device's performance.
Yes! Upload up to 30 AVIF files at once. Click Convert All, then download them individually or as a ZIP archive. All conversions run in parallel for maximum speed.
Both support transparency. PNG is universally compatible and lossless, making it the safe choice. WebP offers smaller file sizes but with slightly less software support. For web use, WebP is often preferred; for design work, use PNG.
No. Avifkit is completely free with no registration, no watermarks, and no usage limits. Just open the page and start converting.
Related Conversion Tools
AVIF to JPG
Convert AVIF images to universally compatible JPG format.
AVIF to WebP
Convert AVIF to WebP for optimized web performance.
PNG to AVIF
Compress PNG images to smaller AVIF format.
JPG to AVIF
Convert JPG photos to next-gen AVIF format.
WebP to AVIF
Upgrade WebP images to superior AVIF compression.
AVIF to GIF
Convert AVIF images to GIF format.
AVIF to PDF
Embed AVIF images in PDF documents.
AVIF Viewer
Preview AVIF files and inspect metadata.
Avifkit.comは、メディアをある形式から別の形式に簡単かつ迅速に変換できる無料のオンラインファイルコンバーターです。AVIF、WEBP、HEICなどの多くの異なるソース形式と、JPG、PNGなどの出力形式をサポートしています。