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Alternatives · Research & Data Agents

Perplexity alternatives

Looking for an alternative to Perplexity? Below are the research & data agents in our index that do a similar job — open-source options are ranked by real maintained adoption (GitHub stars and recent commit activity), never by sponsorship. Perplexity is a commercial product, so the list below includes both other commercial options and open-source projects you can self-host.

26 alternatives · all research & data agents · how we rank

The product you're replacing

PerplexityAgentResearch & Data Agents

AI answer engine with deep research agents that cite their sources.

Freemium

Perplexity's own profile notes it may not be the right fit if you need auditable control over sources and retrieval — it is a consumer product. If that's you, the options below are worth comparing.

Commercial alternatives to Perplexity

Listed alphabetically — GitHub stars don't measure commercial adoption.

Open-source alternatives to Perplexity

Ranked by maintained adoption — self-hostable and free to run.

01firecrawlInfrastructureThe API to search, scrape, and interact with the web at scale.TypeScript · 143k stars · AGPL-3.0 · Jul 202602ScraplingInfrastructureAn adaptive Web Scraping framework that handles everything from a single request to a full-scale crawl!Python · 68k stars · BSD-3-Clause · Jun 202603TrendRadarAgentAI-driven public opinion & trend monitor with multi-platform aggregation, RSS, and smart alerts. 告别信息过载,你的 AI 舆情监控助手与热点筛选工具!聚合多平台热点 + RS…Python · 60k stars · GPL-3.0 · Jul 202604BettaFishAgent微舆:人人可用的多Agent舆情分析助手,打破信息茧房,还原舆情原貌,预测未来走向,辅助决策!从0实现,不依赖任何框架。Python · 42k stars · GPL-2.0 · May 202605khojAgentYour AI second brain. Self-hostable. Get answers from the web or your docs. Build custom agents, schedule automations, do deep research. Tu…Python · 35k stars · AGPL-3.0 · Jun 202606stormAgentAn LLM-powered knowledge curation system that researches a topic and generates a full-length report with citations.Python · 30k stars · MIT · Sep 202507FastGPTPlatformFastGPT is a knowledge-based platform built on the LLMs, offers a comprehensive suite of out-of-the-box capabilities such as data processin…TypeScript · 29k stars · Jul 202608gpt-researcherAgentAn autonomous agent that conducts deep research on any data using any LLM providersPython · 28k stars · Apache-2.0 · Jun 202609haystackFrameworkOpen-source AI orchestration framework for building context-engineered, production-ready LLM applications. Design modular pipelines and age…MDX · 26k stars · Apache-2.0 · Jul 202610DeepResearchAgentTongyi Deep Research, the Leading Open-source Deep Research AgentPython · 20k stars · Apache-2.0 · Feb 202611WeKnoraPlatformOpen-source LLM knowledge platform: turn raw documents into a queryable RAG, an autonomous reasoning agent, and a self-maintaining Wiki.Go · 18k stars · Jul 202612local-deep-researchAgent~95% on SimpleQA (e.g. Qwen3.6-27B on a 3090). Supports all local and cloud LLMs (llama.cpp, Ollama, Google,...). 10+ search engines - arX…Python · 8.6k stars · MIT · Jul 2026
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13MiroThinkerAgentMiroThinker is a deep research agent optimized for complex research and prediction tasks. Our latest models, MiroThinker-1.7, achieves 74.0…Python · 8.3k stars · Apache-2.0 · Apr 202614deep-searcherAgentOpen Source Deep Research Alternative to Reason and Search on Private Data. Written in Python.Python · 7.9k stars · Apache-2.0 · Nov 202515unstractPlatformLLM-Driven Extraction of Unstructured Data — Built for API Deployments & ETL Pipeline WorkflowsPython · 6.7k stars · AGPL-3.0 · Jul 202616ms-agentFrameworkMS-Agent: a lightweight framework to empower agentic execution of complex tasksPython · 4.3k stars · Apache-2.0 · Jul 202617DeepAnalyzeAgentDeepAnalyze is the first agentic LLM for autonomous data science. 你的AI数据分析师,自动分析大量数据,一键生成专业分析报告!Python · 4.3k stars · MIT · Jul 202618SidekickAgentA native macOS app that allows users to chat with a local LLM that can respond with information from files, folders and websites on your Ma…Swift · 3.3k stars · MIT · May 202619MiroFlowFrameworkTop-1 on 5+ benchmarks | Web UI | Supports MiroThinker, Claude, Kimi, OpenAIPython · 3.1k stars · Apache-2.0 · Apr 202620AdalaFrameworkAdala: Autonomous DAta (Labeling) Agent frameworkPython · 1.6k stars · Apache-2.0 · Jun 202621Auto-Deep-ResearchAgent"Your Fully-Automated Personal AI Assistant"Python · 1.6k stars · Oct 202522ToolUniverseSDK / libraryDemocratizing AI scientists with ToolUniversePython · 1.5k stars · Apache-2.0 · Jul 202623TrustRAGFrameworkTrustRAG:The RAG Framework within Reliable input,Trusted outputPython · 1.3k stars · Jan 2026

Compare Perplexity head-to-head

Frequently asked

What is the best alternative to Perplexity?
It depends on whether you'd rather self-host or buy a managed product. firecrawl is the most widely-adopted open-source alternative (143k GitHub stars); Consensus is one of the commercial options. Compare the full list above on adoption, license, and pricing.
Is there a free or open-source alternative to Perplexity?
Yes. firecrawl, Scrapling, and TrendRadar are open-source research & data agents you can self-host for free — you still pay for the infrastructure you run them on and any model or API usage. See the ranked open-source list above.
How are these Perplexity alternatives ranked?
Every product in the research & data agents category is a candidate. Open-source alternatives are ranked by maintained adoption — GitHub stars plus recent commit activity — so you see what's genuinely used, not abandoned. Commercial products are listed separately and alphabetically, because stars don't measure commercial adoption. Sponsored placement is always labeled and never affects the ranking.