Alternatives to LanceDB

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

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 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.

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 multimodal data engine for AI pipelines at scale

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

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

Open-source dataset labeling and AI evaluation for every data modality

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

Custom, ethically sourced video datasets and real-time human feedback for AI video model training and evaluation.

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

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

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

Open-source data annotation platform for vision AI teams

Private-deployment data annotation platform for multimodal AI training.

Free open-source admin UI for ChromaDB vector database

Crowdsourced data services for AI training, validation, and labeling at scale.

Custom multimodal data and evals for perceptual AI training.

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

Collect high-quality human data from verified participants for AI training, evaluation, and research.

Curated video datasets and evals for training spatial reasoning in multimodal AI.

Open-source Python framework for generating grounded synthetic datasets from real tool execution traces.

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

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

Unified lakehouse platform for data, analytics, and production AI

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

Multimodal video search API: find any scene by description in your object storage.