Alternatives to Pdfstract

Open-source vector database for billion-scale AI similarity search.

Open-source vector similarity search for Postgres — store embeddings with your relational data, no extra database.

Open-source AI search platform unifying vector, text, and ML ranking for scalable applications.

Open-source, serverless vector search built on object storage that claims up to 10x lower cost.

Open-source distributed SQL database with vector search, ACID transactions, and HTAP for AI agent workloads.

Open-source real-time SQL analytics, full-text search, and vector database for AI.

Free open-source admin UI for ChromaDB vector database

Open-source, cloud-native data warehouse in Rust unifying analytics, vector search, and full-text search on object storage.

Zvec: open-source, in-process vector database with sub-millisecond search at billion scale.

Open-source protocol suite for standardizing LLM, vector, graph, and embedding infrastructure.

Open-source knowledge-graph RAG that maps entities and communities to answer complex, cross-document questions.

Open-source agentic AI data assistant for SQL, code, and reports

Open-source platform for building, hosting, and running language agents in the wild

Open-source Dreamer framework for self-evolving coding agents

Open-source RAG engine with advanced ETL, hybrid search, and visual agent orchestration for enterprise AI.

Open-source AI SQL client that turns natural language into optimized SQL across 30+ databases, local-first and private.

Open-source multimodal lakehouse for AI data curation, feature engineering, search, and training.

Microsoft's open-source, code-first agent framework for stateful, data-intensive conversational tasks.

Open-source lakehouse format for multimodal AI with hybrid search.

Open-source CLI that turns 18 source types into AI skills and RAG knowledge for 22 AI platforms.

Open-source content intelligence engine for CPU-only document extraction

Free open-source Python framework for LLM document extraction

Free, open-source document AI and team management for tech founders, self-hosted with your own API keys.

Open-source incremental data framework for AI agents, processing only deltas for always-fresh context.

Open-source agentic document extraction turning unstructured files into structured data

Open-source Python library unifying 10+ AI and traditional PDF parsing backends behind one consistent API.

Open-source Python library for zero-shot document AI with structured output.

Open-source context retrieval layer grounding AI agents in real-time data from your apps and databases.

Fully managed vector database for fast, accurate AI retrieval at scale

Automated data movement and transformation platform for AI-ready data pipelines