Browser-based image tools
FormatKit online image converter
Convert JPG, PNG, WebP, AVIF, HEIC, TIFF, GIF, ICO and PDF files directly in your browser. Choose the output format, process one or several files, and download the result without creating an account.
Convert an image
Input formats: PNG, JPEG, WebP, AVIF, HEIC, TIFF, GIF. Drag and drop a file or select manually.
Private by design
Most image conversion runs locally in the browser. Files are used only to create the requested output and are not kept as a public archive.
Practical output formats
Prepare lighter WebP or AVIF images, compatible JPEG files, transparent PNG graphics, PDF documents and ICO favicons.
No installation
The converter works on desktop and mobile browsers, so you can quickly process images without installing a separate editor.
Supported formats and when to use them
| Format | Best for | Note |
|---|---|---|
| JPG / JPEG | Photos, product images, screenshots without transparency | Small files and broad compatibility |
| PNG | Logos, UI graphics, images with transparent backgrounds | Lossless output with transparency support |
| WebP | Web pages, blogs, ecommerce images and previews | Modern compression with wide browser support |
| AVIF | High-compression web images where browser support is acceptable | Very small files with good visual quality |
| PDF / ICO | Documents, printable image sets and website favicons | Special-purpose output for sharing and publishing |
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How the converter handles files
FormatKit is built for everyday file preparation: website images, social media graphics, documents made from pictures, and favicons. The service does not require registration. If a browser does not support a particular codec or export format, choose a more widely supported option such as PNG, JPEG or WebP.