Find the Best Image Format
Upload any image and we'll automatically recommend and convert it to the optimal format for web delivery.
Modern image formats each excel at something different, and choosing the wrong one wastes bandwidth, breaks compatibility, or both. ImageFixer's 'best format' mode looks at your image and the destination you have in mind, and tells you which format will give you the right balance of file size, quality, and compatibility. Then it converts to that format in one click.
Drop an image or click to upload
HEIC, AVIF, WebP, PNG, JPG supported · Max 50MB
About this conversion
How the recommendation engine works
We look at the image content (photographic vs graphic), the resolution, whether it has transparency, and the typical destination context. For most web-bound photos, the recommendation is AVIF. For graphics, screenshots, or anything with transparency, the recommendation is usually PNG or WebP. For email or print, JPG. The recommendation is a starting point — you can always override it.
Why a single format does not fit all
A photo published on a modern blog should be AVIF, because AVIF is the smallest format that every modern browser can display. The same photo emailed to a relative should be JPG, because their email client may not understand AVIF. The same photo printed at a lab should also be JPG, because lab equipment is decades behind in format support. The "best" format is the smallest one your destination understands.
When to second-guess the recommendation
Override the recommendation when you have specific knowledge the engine does not. If you are publishing to a platform that strips metadata, you may want to use a format that handles that gracefully. If you need the smallest possible file regardless of compatibility, push to AVIF even when JPG was suggested. ImageFixer is a tool, not a referee.
No upload, ever
The analysis and conversion both happen in your browser. We do not see your image or its content; the recommendation logic runs against pixel data already loaded into your browser tab. Convert as many images as you want — there is no per-image fee or rate limit.
Frequently asked questions
Is this free to use?
Yes. Single-image conversion is free with no signup required. Pro unlocks batch processing and more.
Are my files private?
Completely. All processing happens in your browser — no file is ever sent to a server.
What formats are supported?
HEIC, HEIF, AVIF, WebP, PNG, and JPG are all supported as input and output formats.