Best Open Source Alternatives to Perplexity AI

Compare the best free and open-source alternatives to Perplexity AI — self-hosted and desktop replacements you fully control, ranked by GitHub stars, license and platform support.

Curated by open-source.store · Updated November 2026 · 2 alternatives

Perplexity AI

Proprietary SaaS

PricingFreemium

Platformsweb, mobile

WebsiteVisit site

Perplexity AI alternatives compared

Open-source alternatives to Perplexity AI, compared by stars, license and platform
Tool		License	Platforms	Self-hosted
Open WebUI	157,576	MIT	LinuxDocker	Yes	Nov 2026	Visit
LibreChat	46,674	MIT	LinuxDockerWeb	Yes	Nov 2026	Visit

Top open-source Perplexity AI alternatives

Open WebUI157,576MIT

Open WebUI is a self-hosted ChatGPT alternative that connects to local and cloud LLMs with built-in RAG, granular RBAC, and complete data privacy.

LinuxDocker

vs Perplexity AI: a free, open-source option you fully control, licensed MIT.

Visit Details

LibreChat46,674MIT

LibreChat replaces ChatGPT with a self-hosted AI chat interface, bringing multi-provider routing, MCP tools, and LDAP authentication under team control.

LinuxDockerWeb