PNG to WebP
Convert PNG images to WebP. PNG is built for screenshots, logos, and anything with flat colour or sharp edges; WebP for the web, where it usually lands 25-35% smaller than an equivalent JPEG. WebP is lossy, trading some detail for a far smaller file. Keep the PNG if you still need the pristine original. Runs on your own Vistalyth Tools instance. Files never reach a third party.
Features
- Quality control over the WebP encode, so you choose the size-versus-detail point
- Batch conversion across a folder of PNG files
- Metadata and colour profile carried over wherever WebP can hold them
- Your PNG files are processed on your own server and never uploaded anywhere
What you can do
- Cut page weight by serving WebP instead of PNG
- Batch a folder of PNG files into WebP in one pass
- Satisfy an upload form or pipeline that takes WebP and rejects PNG
Self-hosted. Your files never leave your network.
Vistalyth Tools runs entirely on your own infrastructure. Files processed with PNG to WebP are never uploaded to third-party servers. Deploy a single Docker container and process files with full privacy, no watermarks, and no usage limits. Open source under AGPL-3.0.
Frequently asked questions
- Will converting PNG to WebP lose quality?
- Judge it at the size the image is actually viewed, not zoomed to 100%. Most photographs survive far more compression than people expect.
- Which quality setting should I use?
- Start at the default, then lower it until you can see the difference at the size the image is actually viewed. Most photographs hold up further down than people expect.
- Can I go back to PNG afterwards?
- You can, and if WebP is lossless the round trip is clean. If WebP is lossy, converting back gives you a PNG wrapper around already-degraded pixels rather than the original.
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