Free Image Converter

PNG to WebP Converter

Convert PNG graphics to WebP online. Make smaller web-friendly images for websites and apps while preserving transparency when the PNG includes it.

登録不要 バッチ変換 Smaller web images
Image conversion icon
PNG
Lossless image
to
WEBP
Modern web image

またはここにファイルをドロップしてください。最大ファイルサイズは1GBです。

変換するファイルを選択してください。

PNG ファイルをアップロードした後、出力形式メニューから WebP を選択し、変換を開始します。

Why convert PNG to WebP?

PNG is reliable and lossless, but WebP can usually store screenshots, graphics, and web assets in much smaller files.

Transparency supported

When your PNG has a transparent background, WebP output keeps that transparency for logos, icons, UI assets, and overlays.

Built for faster pages

Use WebP copies for image-heavy pages, ecommerce galleries, app interfaces, documentation screenshots, and responsive web layouts.

オンラインで WebP に PNG を変換する方法

  1. 1

    Upload your PNG image file.

  2. 2

    Choose WebP as the output format and start the conversion.

  3. 3

    Download your WebP image when processing is complete.

よくある質問

Can I convert PNG to WebP for free?

Yes. Upload a PNG image, choose WebP as the output format, and download the converted file for free with no registration.

Does PNG to WebP keep transparency?

Yes. If the original PNG has a transparent background, the WebP output keeps transparency for web design, app UI, and publishing workflows.

Will PNG to WebP reduce file size?

Often yes. WebP can be much smaller than PNG for many graphics, screenshots, and mixed photo images while still supporting transparency.

When should I keep PNG instead of WebP?

Keep PNG when you need a lossless editing master, very broad legacy software support, or a workflow that specifically requires PNG input.

Can I convert multiple PNG files to WebP at once?

Yes. Add multiple PNG images, choose WebP as the target format, and convert them together. Each uploaded file can be up to 1 GB.

Are my PNG images private?

Files are processed securely and automatically deleted after conversion. Your images are not kept for long-term storage.

関連するイメージコンバーガンツール

JPG ウェブ

Convert JPG photos to compact WebP files for faster websites and sharing.

ウェブPNG

Convert WebP images back to PNG for editing tools and transparent graphics workflows.

タフPNG

Create lossless PNG files from TIFF scans, screenshots, and design exports.

☆☆☆ ☆ ジョン

Create compatible JPG files from PNG images when transparency is not needed.

画像コンバーター

Convert JPG, PNG, WEBP, HEIC, GIF, BMP, and more.

ウェブコンバーター

Start from the WebP format hub for more input and output options.

PNG 変換ツール

Browse PNG conversion workflows for graphics, transparency, and editing.

What happens when PNG becomes WEBP

変換元フォーマット

PNG uses lossless compression and supports full transparency.

ターゲットフォーマット

WEBP supports lossy and lossless compression, transparency, and animation.

どんな変化

The PNG pixels are decoded and written using WEBP compression and color capabilities.

何が保持されるか
Pixel dimensions and visible composition are preserved unless resize or crop settings are selected.
What may be lost
Layers, editable vectors, camera-raw controls, animation, high bit depth, and metadata are preserved only when WEBP supports them.
Codec and quality implications
Color profile handling, bit depth, chroma sampling, and compression settings can change appearance or file size.
Realistic limitations
Multi-page, layered, animated, camera-raw, or very large images may be flattened, reduced to one frame, or rejected if the decoder cannot safely read them.

変換ステップ

  1. Upload a PNG file no larger than 1 GB.
  2. Confirm that WEBP is selected as the target.
  3. Start the conversion. A healthy compatible worker begins processing immediately.
  4. Download the WEBP file and check the result before deleting your source.

トラブル解決

The PNG file is rejected or will not open.
Confirm that the file is not empty, password-protected, or corrupt and that its real format matches the extension.
The WEBP file is larger than expected.
Choose a more efficient codec or lower quality setting when available. Lossless and uncompressed targets are often larger by design.
Transparency, color, or animation changed.
Choose a target that supports the needed feature and keep the original file; JPG cannot store transparency or animation.

プライバシーとファイル保管

Uploads and converted files are processed automatically and irreversibly deleted within 24 hours. You can delete them sooner with the delete control. Convertr does not read, mine, sell, or manually review file contents.

Read the privacy policy

役に立つ選択肢

PNG to AVIF Use this when AVIF better matches the app, codec, or editing workflow you need. PNG to BMP Use this when BMP better matches the app, codec, or editing workflow you need. WEBP to PNG Use the reverse conversion when you need to return to the original format family.