Perplexity answers questions with AI and cites live web sources, but it is a paid, closed product. Open-source AI search tools let you self-host the same experience — your queries stay private and you choose the model. Here are the best open-source alternatives to Perplexity, what each is best at, and how to run one yourself.
Updated regularly · curated by OpenSourceAI.tech
Run models on your own machine or servers so your prompts and data never leave your control — no third party sees them.
Run locally for free, or use a hosted option that is often far cheaper per token, with no monthly subscription.
Fine-tune on your own data, change behaviour, and integrate the tool deeply into your own products and workflows.
The software is yours to keep. No surprise deprecations, no forced upgrades, no sudden price hikes pulling the rug out.
These are open-source, self-hostable tools that deliver Perplexity-style answers with web sources, while keeping your queries private.
Perplexica (Vane)by ItzCrazyKnsThe most popular open-source, self-hostable Perplexity alternative — it reads the live web and answers with citations. Rebranded to Vane in March 2026, it bundles its own private search engine and works with local models via Ollama.
View Perplexica / Vane →
Morphicby miurlaA polished open-source answer engine with a generative UI that streams rich, interactive results as it responds.
View Morphic →
Khojby khoj-aiAn open-source AI assistant that searches both the web and your own documents, available as a desktop, web and self-hosted app.
View Khoj →
SearXNGby searxngA privacy-respecting meta-search engine that aggregates dozens of search engines without tracking — the search backbone many AI-search tools build on.
View SearXNG →
Onyxby onyx-dot-appAn open-source AI search and chat layer over your team's documents and apps (formerly Danswer), built for private, self-hosted knowledge search.
View Onyx →Most of these tools run as a single Docker container. Deploy it, connect a model, and you have a private answer engine in minutes.
Deploy Perplexica (Vane) or Morphic with a single container on your own server or PC.
Connect a local model so the entire search-and-answer stack runs offline and private.
The bundled meta-search engine fetches web results from dozens of engines without tracking you.
Want faster answers? Plug in a low-cost hosted model instead of running one locally.
Privacy note: when self-hosted with a local model, your queries and history never leave your hardware — no tracking, no ad targeting, no data sold.
Yes. Perplexica (rebranded to Vane in 2026) is the most popular open, self-hostable Perplexity alternative, with Morphic and Khoj as strong options.
Yes. Most of these run as a Docker container you deploy on your own server or machine.
Self-hosted, yes — your queries and history stay on your hardware, with no tracking or ad targeting.
No. Connect a local model via Ollama for a completely free, private setup, or use a cheap hosted API for faster answers.
Perplexica (Vane) most closely reproduces the Perplexity workflow of question, web research, then cited answer.
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