Image Format Converter
Drop an image here or browse files
PNG, JPEG, WebP, AVIF · conversion stays in your browser
- Convert PNG, JPEG, WebP, and supported AVIF
- Preview encoded output before downloading
- Tune quality for JPEG, WebP, and AVIF
- Compare original and output file sizes
- Transparent PNG/WebP stays transparent
- No upload — conversion runs in your browser
What is Image Format Converter?
An image format converter changes a picture from one file type to another.
SlapMyWeb's free image format converter previews the encoded result and compares file size before you download. Choose PNG for lossless graphics and transparency, JPEG for photographs, or WebP for smaller web images; AVIF appears only when your browser can export it. Adjust quality for lossy formats and compare the original with the new output. The conversion runs locally in your browser, so your image is not uploaded. JPEG does not support transparency, so transparent pixels are filled with white; PNG and WebP can preserve transparency.
How to use Image Format Converter
- 1
Choose an image
Drop a PNG, JPEG, WebP or another browser-readable image, or select one from your device. The image stays in your browser.
- 2
Pick a format and quality
Choose PNG, JPEG or WebP. AVIF is offered only if your browser supports AVIF export. Adjust quality for lossy formats and inspect the live preview and size comparison.
- 3
Convert and download
Select Convert and prepare download, then save the output. Your original file remains unchanged.
Everything this tool
does for you
- Convert to PNG, JPEG, WebP, or AVIF where browser encoding is supported
- Live preview responds to format and quality changes
- Compare original and output file sizes before downloading
- Adjust JPEG, WebP, and AVIF quality; PNG remains lossless
- Transparent areas remain transparent in PNG and WebP; JPEG uses white
- Local browser conversion keeps images on your device
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