Image Converter
No uploadConvert PNG, JPG, WebP and AVIF images in your browser. Batch convert, set quality, downscale — files never upload.
Drop images here, or click to choose files
PNG · JPG · WebP · GIF · BMP · SVG · AVIF — several files at once
Your files never leave this device — conversion runs entirely in your browser.
What does this image converter do?
This tool changes the file format of an image, for example from PNG to JPG, JPG to WebP, or WebP back to PNG, directly in your browser. You can drop several files at once, choose the output format, set the compression quality for lossy formats, optionally downscale to a maximum width, and download the results. Unlike most online converters nothing is uploaded, which makes it safe for screenshots of private dashboards, ID documents, client designs, or anything else you would rather not send to a server you do not control.
It accepts every format your browser can display: PNG, JPEG, WebP, GIF (first frame), BMP, SVG, ICO and AVIF. Output is PNG, JPG or WebP everywhere, plus AVIF in browsers that can encode it.
How to convert an image
- Drag your images into the drop zone or click it to pick files. Several files can be converted in one go.
- Choose the output format: PNG, JPG, WebP or AVIF.
- For JPG, WebP and AVIF, set the quality. 80 to 92 is the sweet spot for photos.
- Optionally enter a maximum width, for example 1920, to shrink oversized camera photos for the web.
- Click Convert, then download files one by one or all at once.
PNG vs JPG vs WebP vs AVIF
| Format | Compression | Transparency | Best for |
|---|---|---|---|
| PNG | Lossless, large files | Yes | Screenshots, logos, icons, UI mockups, text |
| JPG | Lossy, small | No | Photos, email attachments, maximum compatibility |
| WebP | Lossy or lossless, 25 to 35% smaller than JPG | Yes | Websites, app assets, anything measured by Core Web Vitals |
| AVIF | Lossy, about 50% smaller than JPG | Yes | Modern websites where every kilobyte counts |
Common conversions
- PNG to JPG to shrink a screenshot before emailing it or uploading to a form with a size limit.
- JPG to PNG when a website, form or printer insists on PNG.
- WebP to JPG or PNG to open images saved from the web in older software that does not understand WebP.
- PNG or JPG to WebP to cut page weight and improve Largest Contentful Paint scores.
- SVG to PNG to get a raster copy of a vector logo at a chosen width.
- Downscale 12-megapixel phone photos to 1920 pixels wide for social media, chat apps, or documentation.
Tips for smaller files
Quality above 92 rarely looks better but costs a lot of bytes; 85 is fine for most photos. Pick WebP when the image will be viewed in a browser. Set a maximum width: a 4000-pixel photo displayed at 800 pixels wastes 25 times the data. Keep PNG only for graphics with flat colours or transparency; a photo saved as PNG is usually five to ten times larger than the same photo as JPG.