Alternatives
Self-hosted alternatives to Perplexity Enterprise
Projects in the registry that can run on your own hardware and serve at least one of the same use cases as Perplexity Enterprise.
- Source
- Registry relations over fetched repository records — the evidence sits on each repository page
- Verified
- Evidence not verified
- Confidence
- High
01How this list was built
- Compared against
- Perplexity Enterprise
- Delivery
- SaaS products
- Shared use cases
- Company research, Sales research, Legal research, Internal company search
- Selection rule
- open source, or self-hostable, and shares a use case
- Candidates found
- 23
02Alternatives
AnythingLLM
Hybrid — hosted or self-hosted
Desktop and server application that turns a document set into a chat workspace, with per-workspace embeddings, multiple model back ends and a built-in vector store.
- Repository
- Mintplex-Labs/anything-llm
- Stars
- 65,673
- Licence
- MIT
- In stacks
- 0
Shares: Internal knowledge search
authentik
Hybrid — hosted or self-hosted
Identity provider with OpenID Connect, SAML and proxy-based authentication, application-level policies and a forward-auth outpost for services that have no login of their own.
- Repository
- goauthentik/authentik
- Stars
- 25,644
- Licence
- Other
- In stacks
- 0
Shares: Internal knowledge search
Chroma
Hybrid — hosted or self-hosted
Embedded and server-mode vector store with a small API surface, often used for prototypes and single-node retrieval before a larger engine is justified.
- Repository
- chroma-core/chroma
- Stars
- 29,329
- Licence
- Apache-2.0
- In stacks
- 0
Shares: Internal knowledge search
Dify
Hybrid — hosted or self-hosted
Platform for building LLM applications: visual workflow editor, retrieval pipelines, agent tools, prompt management and an API layer. Available self-hosted or as a managed cloud service.
- Repository
- langgenius/dify
- Stars
- 153,448
- Licence
- Other
- In stacks
- 1
Shares: Internal knowledge search
Docling
Libraries
Document conversion toolkit that parses PDF, Office and image files into structured Markdown or JSON, preserving reading order, tables and figures for downstream retrieval.
- Repository
- docling-project/docling
- Stars
- 65,519
- Licence
- MIT
- In stacks
- 5
Shares: Internal knowledge search
Flowise
Hybrid — hosted or self-hosted
Visual builder for LLM chains and agents, with retrieval nodes, tool calling and an API or embeddable chat widget for the finished flow.
- Repository
- FlowiseAI/Flowise
- Stars
- 55,469
- Licence
- Other
- In stacks
- 0
Shares: Internal knowledge search
Keycloak
Self-hosted projects
Identity and access management server providing OpenID Connect and SAML single sign-on, user federation, groups and roles for self-hosted applications.
- Repository
- keycloak/keycloak
- Stars
- 36,449
- Licence
- Apache-2.0
- In stacks
- 4
Shares: Internal knowledge search
Kotaemon
Self-hosted projects
Document question-answering application with a configurable retrieval pipeline, inline citations that highlight the source passage, and support for local or hosted models.
- Repository
- Cinnamon/kotaemon
- Stars
- 25,775
- Licence
- Apache-2.0
- In stacks
- 0
Shares: Internal knowledge search · Legal research
LangChain
Frameworks
Library for composing model calls, retrieval and tools into applications, with adapters for most providers and vector stores. A building block, not a deployable product.
- Repository
- langchain-ai/langchain
- Stars
- 146,657
- Licence
- MIT
- In stacks
- 0
Shares: Internal knowledge search
Langflow
Hybrid — hosted or self-hosted
Visual environment for composing LLM pipelines and agents from components, with export to a Python application or an API endpoint.
- Repository
- langflow-ai/langflow
- Stars
- 155,003
- Licence
- MIT
- In stacks
- 0
Shares: Internal knowledge search
Langfuse
Hybrid — hosted or self-hosted
Tracing, evaluation and prompt management for LLM applications, self-hostable so prompts and responses can stay inside the network being audited.
- Repository
- langfuse/langfuse
- Stars
- 34,243
- Licence
- Other
- In stacks
- 1
Shares: Internal knowledge search
LangGraph
Frameworks
Graph-structured agent framework with explicit state, checkpoints and interrupts — the mechanism behind a human approval step rather than a prompt asking for one.
- Repository
- langchain-ai/langgraph
- Stars
- 41,111
- Licence
- MIT
- In stacks
- 1
Shares: Internal knowledge search
LlamaIndex
Frameworks
Data framework for retrieval applications: loaders for many document types, indexing and query pipelines, and evaluation helpers for retrieval quality.
- Repository
- run-llama/llama_index
- Stars
- 52,226
- Licence
- MIT
- In stacks
- 0
Shares: Internal knowledge search
Marker
Libraries
PDF-to-Markdown converter aimed at long documents, with optional model-assisted correction. Published under a licence with a revenue condition — read it before commercial use.
- Repository
- datalab-to/marker
- Stars
- 39,841
- Licence
- Apache-2.0
- In stacks
- 0
Shares: Internal knowledge search
Milvus
Hybrid — hosted or self-hosted
Distributed vector database designed for large collections, with several index types, GPU indexing options and a separated storage and compute architecture.
- Repository
- milvus-io/milvus
- Stars
- 46,159
- Licence
- Apache-2.0
- In stacks
- 0
Shares: Internal knowledge search
MinerU
Libraries
Converts PDFs to structured Markdown or JSON, keeping reading order, tables and formulae. Handles Chinese layouts, which most Western-trained parsers do poorly.
- Repository
- opendatalab/MinerU
- Stars
- 80,242
- Licence
- Other
- In stacks
- 0
Shares: Internal knowledge search
Onyx
Hybrid — hosted or self-hosted
Open-source enterprise search and chat over company systems, with connectors to common SaaS tools, permission-aware indexing and a self-hosted deployment path.
- Repository
- onyx-dot-app/onyx
- Stars
- 31,754
- Licence
- Other
- In stacks
- 0
Shares: Internal knowledge search
Open WebUI
Self-hosted projects
Self-hosted chat interface for local and hosted models, with user accounts, groups, document upload and built-in retrieval. Runs in Docker against Ollama, vLLM or any OpenAI-compatible endpoint.
- Repository
- open-webui/open-webui
- Stars
- 149,870
- Licence
- Other
- In stacks
- 5
Shares: Internal knowledge search
pgvector
Libraries
PostgreSQL extension adding vector types and HNSW or IVFFlat indexes, so embeddings live in the same database and the same backup as the rest of the application data.
- Repository
- pgvector/pgvector
- Stars
- 22,735
- Licence
- Other
- In stacks
- 6
Shares: Internal knowledge search
PostgreSQL
Self-hosted projects
Relational database used here as the system of record for documents, metadata and job queues, and — with pgvector — for embeddings as well.
- Repository
- none linked
- Stars
- —
- Licence
- unknown
- In stacks
- 4
Shares: Internal knowledge search
Qdrant
Hybrid — hosted or self-hosted
Vector search engine written in Rust with payload filtering, hybrid search, quantisation and snapshots. Runs as a single container or a cluster, or as a managed cloud service.
- Repository
- qdrant/qdrant
- Stars
- 34,678
- Licence
- Apache-2.0
- In stacks
- 0
Shares: Internal knowledge search
RAGFlow
Self-hosted projects
Retrieval engine built around deep document parsing: layout-aware chunking of PDFs, tables and scans, citation-backed answers, and a visual pipeline for building knowledge bases.
- Repository
- infiniflow/ragflow
- Stars
- 90,113
- Licence
- Apache-2.0
- In stacks
- 1
Shares: Internal knowledge search
Unstructured
Hybrid — hosted or self-hosted
Library and hosted API that partition documents of many formats into typed elements for indexing, with connectors to common storage systems and vector databases.
- Repository
- Unstructured-IO/unstructured
- Stars
- 15,454
- Licence
- Apache-2.0
- In stacks
- 1
Shares: Internal knowledge search
03Repository facts
| Repository | Stars | Health |
|---|---|---|
| Mintplex-Labs/anything-llmStop renting your intelligence. Own it with AnythingLLM. Everything you need for a powerful local-first agent experience | 66k | Maintenance 60%, Releases 60%, Contributors 50%, Issues 95%, Community 96%71 |
| goauthentik/authentikThe authentication glue you need. | 26k | Maintenance 80%, Releases 80%, Contributors 50%, Issues 57%, Community 88%75 |
| chroma-core/chromaSearch infrastructure for AI | 29k | Maintenance 80%, Releases 40%, Contributors 50%, Issues 70%, Community 89%69 |
| langgenius/difyBuild Agentic workflows, RAG pipelines, with rich AI model and tool support on one collaborative workspace. Deploy on cloud, VPC, or self-hosted, so teams move from prototype to production without rebuilding the stack. | 153k | Maintenance 60%, Releases 60%, Contributors 50%, Issues 94%, Community 100%72 |
| docling-project/doclingGet your documents ready for gen AI | 66k | Maintenance 60%, Releases 60%, Contributors 50%, Issues 85%, Community 96%70 |
| FlowiseAI/FlowisearchivedBuild AI Agents, Visually | 55k | Maintenance 0%, Releases 60%, Contributors 50%, Issues 81%, Community 95%51 |
| keycloak/keycloakOpen Source Identity and Access Management For Modern Applications and Services | 36k | Maintenance 60%, Releases 60%, Contributors 50%, Issues 14%, Community 91%62 |
| Cinnamon/kotaemonAn open-source RAG-based tool for chatting with your documents. | 26k | Maintenance 40%, Releases 40%, Contributors 50%, Issues 90%, Community 88%59 |
| langchain-ai/langchainThe agent engineering platform. | 147k | Maintenance 80%, Releases 60%, Contributors 50%, Issues 96%, Community 100%78 |
| langflow-ai/langflowLangflow is a powerful tool for building and deploying AI-powered agents and workflows. | 155k | Maintenance 80%, Releases 60%, Contributors 50%, Issues 93%, Community 100%78 |
| langfuse/langfuseOpen source AI engineering platform: LLM evals, observability, metrics, prompt management, playground, datasets. Integrates with OpenTelemetry, LangChain, OpenAI SDK, LiteLLM, and more. YC W23 | 34k | Maintenance 60%, Releases 60%, Contributors 50%, Issues 73%, Community 91%68 |
| langchain-ai/langgraphBuild resilient agents. | 41k | Maintenance 60%, Releases 60%, Contributors 50%, Issues 82%, Community 92%69 |
| run-llama/llama_indexLlamaIndex is the document processing platform for AI | 52k | Maintenance 80%, Releases 60%, Contributors 50%, Issues 85%, Community 94%76 |
| datalab-to/markerConvert PDF to markdown + JSON quickly with high accuracy | 40k | Maintenance 60%, Releases 60%, Contributors 50%, Issues 88%, Community 92%69 |
| milvus-io/milvusMilvus is a high-performance, cloud-native vector database built for scalable vector ANN search | 46k | Maintenance 80%, Releases 60%, Contributors 50%, Issues 69%, Community 93%74 |
| opendatalab/MinerUTransforms complex documents like PDFs and Office docs into LLM-ready markdown/JSON for your Agentic workflows. | 80k | Maintenance 80%, Releases 80%, Contributors 50%, Issues 99%, Community 98%82 |
| onyx-dot-app/onyxOpen Source AI Platform - AI Chat with advanced features that works with every LLM | 32k | Maintenance 60%, Releases 60%, Contributors 50%, Issues 87%, Community 90%69 |
| open-webui/open-webuiUser-friendly AI Interface (Supports Ollama, OpenAI API, ...) | 150k | Maintenance 60%, Releases 60%, Contributors 50%, Issues 99%, Community 100%72 |
| pgvector/pgvectorOpen-source vector similarity search for Postgres | 23k | Maintenance 60%, Releases 30%, Contributors 50%, Issues 99%, Community 87%63 |
| qdrant/qdrantQdrant - High-performance, massive-scale Vector Database and Vector Search Engine for the next generation of AI. Also available in the cloud https://cloud.qdrant.io/ | 35k | Maintenance 80%, Releases 60%, Contributors 50%, Issues 79%, Community 91%74 |
| infiniflow/ragflowRAGFlow is a leading open-source Retrieval-Augmented Generation (RAG) engine that fuses cutting-edge RAG with Agent capabilities to create a superior context layer for LLMs | 90k | Maintenance 60%, Releases 60%, Contributors 50%, Issues 82%, Community 99%71 |
| Unstructured-IO/unstructuredConvert documents to structured data effortlessly. Unstructured is open-source ETL solution for transforming complex documents into clean, structured formats for language models. Visit our website to learn more about our enterprise grade Platform product for production grade workflows, partitioning, enrichments, chunking and embedding. | 15k | Maintenance 60%, Releases 60%, Contributors 50%, Issues 80%, Community 84%66 |
04Ask about your own case
Which alternative is right depends on how many people will use it, what the data is and what you can operate. Ask and the answer is researched for your organisation.