Magika 1.0 Goes Stable As Google Rebuilds Its File Detection Tool In Rust

BrianFagioli writes: Google has released Magika 1.0, a stable version of its AI-based file type detection tool, and rebuilt the entire engine in Rust for speed and memory safety. The system now recognizes more than 200 file types, up from about 100, and is better at distinguishing look-alike formats such as JSON vs JSONL, TSV vs CSV, C vs C++, and JavaScript vs TypeScript. The team used a 3TB training dataset and even relied on Gemini to generate synthetic samples for rare file types, allowing Magika to handle formats that don't have large, publicly available corpora. The tool supports Python and TypeScript integrations and offers a native Rust command-line client.

Under the hood, Magika uses ONNX Runtime for inference and Tokio for parallel processing, allowing it to scan around 1,000 files per second on a modern laptop core and scale further with more CPU cores. Google says this makes Magika suitable for security workflows, automated analysis pipelines, and general developer tooling. Installation is a single curl or PowerShell command, and the project remains fully open source. The project is available on GitHub and documentation can be found here.

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