magika

Why we included this project

Magika tackles a question that quietly breaks a lot of file-handling code: what kind of file is this, actually? Instead of trusting extensions or hand-written magic-byte rules, it runs a small deep-learning model, a few megabytes in size, that identifies content types in milliseconds on a single CPU across more than 200 binary and text formats. That makes it a natural fit for upload handlers, email filters, and malware triage, where a mislabeled file can cause real trouble. It ships as a command-line tool with Python, Node, and Go bindings, so teams can drop it into existing pipelines without changing their architecture. Google already uses it at scale to route files in Gmail, Drive, and Safe Browsing, and it has been integrated into VirusTotal and abuse.ch.