How-To Guides & Tutorials

Plain-English guides on icons, favicons, image formats, file sizes and GIFs - each one with the free tool that does the job.

3 guides 3 topics Updated Oct 23, 2026

Guides tagged Conversion Show all guides

All guides 3

Tutorial

Turn any PNG into a real multi-size ICO in seconds - which sizes to pick for a favicon or a Windows icon, how to prepare your PNG…

4 min read Updated Oct 23, 2026 Read

Guide

Why does one image format have four names? The history behind JPG, JPEG, JPE and JFIF, why Windows saves .jfif files, and how to…

10 min read Updated Oct 14, 2026 Read

Comparison

HEIF is the container, HEIC is HEIF with HEVC compression - the format your iPhone shoots. Here is what that means, how to open b…

7 min read Updated Oct 14, 2026 Read