
Hob is a free desktop assistant that runs entirely on your own computer. Install it and it picks an open model that fits your machine, such as Google's Gemma or OpenAI's gpt-oss, then downloads and sets it up. After that you use it like ChatGPT, with one difference: your chats and files never leave the laptop. No account, no subscription, no telemetry, and it keeps working offline.
It does real file work. Point it at a folder and it can read a sales spreadsheet and chart revenue by region, fill out a PDF form, or edit a document. It asks before every change and lets you undo one it got wrong. On Mac, Mail and Calendar are built in. It needs 8 GB of RAM at minimum, 16 GB for everyday work, and 10 to 25 GB of disk. It runs on Apple silicon Macs, Windows, and Linux, and it's MIT-licensed by Frigade.
Everybody has a folder they won't upload: client contracts, salary sheets, a patient list, a draft nobody's seen yet. Hob is for that folder. The pitch isn't that it's smarter than ChatGPT, because it isn't. It's that a decent model on your own laptop can chart a spreadsheet or fill a form without a byte going to anyone's server, and Hob makes that a download instead of a weekend of setup.
LM Studio and Ollama are fine if you enjoy choosing models. Hob hides that choice and adds the file tools, which is what an office worker actually needs. Asking before every change, with an undo, is exactly right for an assistant that touches your documents.
Skip it on an 8 GB laptop if you expect ChatGPT-level answers. The lighter models it falls back to handle summaries and quick edits, not hard reasoning. Intel Mac owners are out entirely. Anyone with 16 GB of RAM and something private to work on should install it this week.