Made a quick tool for generating custom favicons. You can change the shape and how it looks on tab and in google serp. Also if you upload a svg then you can change the background colors and add padding.
➡️ <a href="https://png-to-ico.com" target="_blank" rel="noopener nofollow">https://png-to-ico.com</a>

Kristjan Retter

A web-based favicon generator tool that converts images to ICO format with customization options. Features include adjustable shapes, tab/Google SERP preview, and for SVG uploads, background color changes and padding controls.

Made a customisable img to ICO converter with Chrome/Google preview

There are plenty apps doing the same job on the internet, but the what I like the most here is the previsualisation and the amont of settings to configure the ico files.
Very nice work !

Great job, perfect implementation! 👍 Thanks for sharing. This favicons in “*.ico” format was always my headache. Has landed in my bookmarks.