Last updated: May 11, 2026
Summary
Karmacrawl is a Chrome extension that helps you research topics on Reddit. We do not collect, store, or transmit any of your personal data to our servers — because we don't have servers. Everything happens locally in your browser.
What Karmacrawl accesses
- Reddit pages you visit: the extension's content script detects when you're on a Reddit thread, subreddit, or search page so it can extract data when you ask it to. It does not log your browsing.
- Reddit's public API: when you click "Extract" or "Find quotes," Karmacrawl makes requests to Reddit's public
.json endpoints to fetch comments and posts. These requests go from your browser directly to Reddit — Karmacrawl has no proxy or backend.
- Anthropic's Claude API (only if you provide an API key for the Discover feature): when you use the AI-powered Discover mode, Karmacrawl sends your search query and the fetched Reddit comments to Anthropic's API using your own API key. Anthropic's privacy policy applies to that data. Karmacrawl never sees your key — it's stored locally in your browser only.
- Jina Reader (only if you enable the Web Supplement add-on): your search query is sent to Anthropic to generate non-Reddit URL suggestions, then those URLs are fetched via Jina Reader (
r.jina.ai) to retrieve their markdown content. No personal data leaves your browser through this flow.
What Karmacrawl stores locally
All data is stored in your browser via Chrome's storage.local API. It never leaves your device unless you explicitly export it. Specifically:
- Your Anthropic API key (if you provided one)
- Your model preference (Haiku / Sonnet / Opus)
- A history of your discovery queries and their results
- A history of threads and subreddits you've extracted, including the full comments and posts (so you can re-open them without re-fetching)
- "Snapshots" of threads you've extracted, used to compute since-last-visit diffs
You can clear all of this at any time from Karmacrawl's Settings → "Clear all local data."
What Karmacrawl does NOT do
- Karmacrawl does not run analytics, tracking, or telemetry of any kind.
- Karmacrawl does not have a backend. We have no servers and no database. There is no account.
- Karmacrawl does not sell, share, or monetize your data — there is no data to sell.