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YaCy vs SearXNG: catalog facts
YaCy	SearXNG
Free Free and open source software.	Free Free and open source under the AGPL.
Web, Self-hosted	Web, Self-hosted
Decentralized peer-to-peer web index with no central operator Can run as a private crawler or intranet search portal	Aggregates dozens of engines, so results are not tied to one company's index Self-hosting keeps queries entirely under your control
Pre-compiled packages are not built regularly; compiling from source is recommended Peer-to-peer results are less complete than major web search engines	Public instances can be rate limited or blocked by upstream engines Running your own instance is ongoing maintenance
Downloadable app, Self-hosted	Self-hosted, Web application
Open source	Open source
License: GPL-2.0	License: AGPL-3.0
No account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.