FontForge is a free, open-source font editor. When you open a .ttc file in FontForge, it will ask you which specific font from the collection you want to open. You can then use File > Generate Fonts to save that specific style as a standalone .ttf. Why Do This?
If you are comfortable with command-line tools or Python, you can use specialized libraries: Convert or extract TTC font to TTF - how to? [closed] convert ttc font to ttf work
Online tools are the fastest way to split a TTC file without installing software. They typically provide a ZIP file containing the extracted TTF files. Transfonter TTC Unpack : Upload your file (upstanding to 50MB) and download the individual components. Everything Fonts Technical Paper: Conversion of TTC (TrueType Collection) to
TTC (TrueType Collection) bundles multiple TrueType fonts in one file. To extract individual TTF files from a TTC, use one of the methods below. Why Do This
: Supports many formats, though it may sometimes only extract the first font in a collection. Transfonter Method 2: Software & Manual Tools For better control or privacy, use local software: (Windows/Mac/Linux) Open the TTC file.