Image Format Converter
Convert images between PNG, JPG, WebP, and AVIF. Batch mode, adjustable quality — all in your browser, nothing uploaded.
What is the Image Format Converter?
This tool converts images between common web formats: PNG, JPG (JPEG), WebP, AVIF, and GIF. All conversion uses the browser's Canvas API — your images are never uploaded to any server. You can convert single images or multiple files at once in batch mode.
When to use each format: WebP — best for web: smaller than JPG/PNG at equal quality. AVIF — next-gen format with superior compression. JPG — best for photos: good compression, no transparency. PNG — best for logos, screenshots, transparency.
How to Use
- Drag and drop images or click the upload area to select files.
- Choose the target format and adjust quality (80% is recommended for JPG/WebP).
- Click Convert and download each converted file.
Tips
Converting PNG to JPG removes transparency (filled with white). Use WebP to preserve quality at smaller sizes. The quality slider affects JPG, WebP, and AVIF only — PNG is lossless. For further optimization after conversion, use the Image Compressor. For changing dimensions, try the Image Resizer.
Frequently Asked Questions
What is the best format for web images?
WebP offers the best balance of quality and file size for web. AVIF is even better but has slightly less browser support. JPG is best for photos, PNG for transparency.
Does converting PNG to JPG remove transparency?
Yes. JPG does not support transparency. Transparent areas become white. Use WebP or PNG to keep transparency.
Are my images uploaded to a server?
No. All conversion happens in your browser using the Canvas API. Your images never leave your device.
What quality setting should I use?
80–85% is a good balance for JPG and WebP. Above 90% has diminishing returns. Below 70% may show visible compression artifacts.