Does Zapwebp upload my files to any server?

No. Zapwebp executes 100% locally in your browser memory using Web Workers and Canvas. Your images never leave your device.

How does Zapwebp ensure transparency is preserved?

Zapwebp verifies alpha channels deterministically. Transparent inputs (SVG, PNG, WebP, AVIF, GIF) retain their transparency when converted to alpha-capable targets without accidental black or white background artifacts.

What image formats can Zapwebp convert?

Zapwebp converts between SVG, PNG, WebP, AVIF, JPEG, GIF, and TIFF, with options for quality, lossless compression, and Clean Mode metadata stripping.

Is Zapwebp free and open source?

Yes, Zapwebp is free and open-source under the MIT License.

Zapwebp — Transparency-Safe Image Converter

Drop images here or browse files

Select single files, batches, or folders.

SVG PNG WEBP AVIF JPEG GIF TIFF

Format

Scales

Quality 85%

Modes

Lossless Clean Mode

Convert correctly.

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