Image Format Converter - JPG/PNG/WebP Online

Format	Best for	Transparency
JPG	Photos, documents, general use	Not supported
PNG	Screenshots, icons, lossless/transparent	Supports
WebP	Website images — smallest size at equal quality	Supports

About this Image Converter

The sign-up system wants JPG, the site backend only allows PNG, and the group chat would prefer a smaller WebP — format mismatch is part of daily image handling. Many online converters upload your images to a server, and sending sensitive photos through the cloud is uncomfortable.

This tool converts locally using the browser's native decoding and encoding: JPG/PNG/WebP interconversion, batch processing, adjustable quality (10%–100%). Images never leave your device; download as soon as conversion finishes.

How to use

Click or drop images (multi-select)
Pick the target format and quality (PNG is lossless; the quality option doesn't apply)
Click "Convert" and a download button appears beside each image

FAQ

Why did transparency turn white after JPG conversion?

JPG doesn't support transparency — transparent areas are filled with white. To keep transparency, convert to PNG or WebP.

Can I convert iPhone HEIC files?

Safari and recent Chrome can decode HEIC directly; other browsers can't yet. On iPhone, choose "Most Compatible" when shooting or use our on-site Image Compress tool (HEIC supported).

What quality should I pick?

For everyday use, 80–90% is visually lossless and small; for further editing choose 95%+ or convert straight to PNG.

Related:Image Converter · JPG to PNG · PNG to JPG · WebP Convert · Convert images online

Image Converter

Choose images

Image list

Choosing between the three formats

About this Image Converter

How to use

FAQ

Related tools

Image Compress (LitePic)

ID Photo Maker

PDF Toolbox