Atomic - A personal knowledge base that organizes itself.

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The open-source knowledge base that organizes itself, now hosted. Atomic auto-tags your notes, links them semantically, writes cited wikis, and runs research reports on a schedule. Pick a subdomain and go. Markdown export anytime. 14-day trial, no card.

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Hey PH 👋 Ken here. Atomic started as my own frustration: I capture a lot (articles, notes, half-thoughts) and organize approximately none of it. So I built a knowledge base where the organizing is the machine's job. You write markdown; Atomic tags it, embeds it, links it to related notes, and writes wiki-style summaries with citations back to your own words. The newest piece is Reports: give it a research prompt and a schedule, and it works through your knowledge base and connected sources, then files a cited report. Findings become notes themselves, so the next report builds on the last. It's the closest I've gotten to "my notes are doing something while I'm not looking." Atomic has been open source from day one (MIT, self-hostable, works with local models). Atomic Cloud is for everyone who liked it but did not want to run a server: pick a subdomain, and you're capturing in thirty seconds. And because hosted knowledge bases live or die on trust: everything exports as markdown at any time, you can migrate to self-hosted, and non-payment never deletes your data. I'd love to hear how you organize what you capture — that problem is the whole reason this exists.