FeedSieve

Open-source spam account blocker for X (Twitter) using a community blocklist.

Browser extensionfreeglobal

FeedSieve is an open-source Chrome extension that flags high-confidence spam accounts on X with a visible marker and lets users block them in one click, using a community-maintained blocklist. It suits X users who want spam accounts identified automatically instead of judging and blocking each one manually.

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Full match profile

Behind the summary, Matchbox keeps a richer profile of FeedSieve - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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