If you need a tool to figure out what fonts are used in an image or logo, Font Finder is a good option. This AI-based service compares uploaded images with more than 990,000 fonts, both commercial and free. You can upload a clean image of text, and the tool automatically breaks it down into individual letters and offers a list of matching fonts with links to download or purchase. Features include unlimited access to a large library of fonts, the ability to preview custom text, the ability to search Google Fonts, and advanced filtering.
If you're looking for a more general-purpose visual analysis tool that happens to include font identification, check out Visionati. Visionati has a range of AI-based features, including intelligent tagging, content filtering and facial recognition. It's geared more toward digital marketing, storytelling and data analysis, but it also includes brand and logo detection that could be useful for font identification.