Image Converter

Convert images in your browser

FormatKit focuses on browser-based image conversion where the current browser supports decoding and export. It is a practical choice when you want a quick file conversion without installing desktop software.

Key benefits

  • Designed for local processing where browser APIs support the format.
  • No registration or project setup.
  • Works for common image preparation tasks on desktop and mobile browsers.
  • Useful for WebP, PNG, JPEG, AVIF, PDF and favicon workflows.

Relevant tools

What browser-based means

The converter uses browser features such as image decoding, canvas export and client-side ZIP/PDF generation. If a browser cannot read a specific codec, the conversion may fail instead of silently sending the file elsewhere.

Best formats for browser conversion

  • PNG and JPEG are the safest compatibility choices.
  • WebP is usually a good balance of quality and file size.
  • AVIF and HEIC support can vary by browser and operating system.

FAQ

  • Are files uploaded to a server?
    FormatKit is designed for browser-based conversion where supported. Some formats depend on browser capabilities, and the privacy page explains current limitations.
  • Does every format work in every browser?
    No. Browser support varies for HEIC, AVIF, TIFF and some export formats. If one format fails, try PNG, JPEG or WebP.