I wanted something like this for backing up my own boards and the existing Chrome extensions all felt sketchy, most need subscriptions, and some don't download videos.

Everything runs locally on your machine. No server, no cloud, no proxy. You paste a board URL and it extracts media, and downloads to a folder.

Built with Electron so works on MacOS, Windows and Linux

https://pinboard-download.vercel.app/ GitHub: https://github.com/pinboardapp/pinboard/releases/latest

Would love feedback, still early and actively working on it.