Top Free Vector Database Software - Page 2

Endee

Endee is an open-source, cloud-native vector database built for production AI workloads, delivering high-performance vector search with 10x less memory than traditional vector databases like Pinecone, Weaviate, or Qdrant. Designed for developers and enterprises alike, Endee powers the AI use cases that matter most Retrieval-Augmented Generation (RAG), semantic search, agentic AI pipelines, and AI-powered recommendation systems all at scale, without the infrastructure headache. Unlike legacy vector search engines, Endee is built from the ground up to be fast, scalable, and secure without compromising on developer experience. Its architecture handles billions of vector embeddings with low latency and high throughput, making it the right foundation for real-world AI applications, LLM integrations, and similarity search in production. Whether you're a startup shipping your first AI feature or an enterprise running mission-critical machine learning workloads, Endee gives you the performance edge and flexibility to grow open-source at its core, enterprise-ready when you need it.

Average Rating: 5.0/5.0

Total Reviews: 1

Tiger Data

Tiger Data, from the creators of TimescaleDB, is the #1 Postgres time-series database for developers, devices and agents. Keep sensor, on-chain, and customer data fresh while retaining years of history, all queryable in standard SQL. For IoT, Web3, and AI. Why teams choose Tiger Data: - Trusted by thousands of developers. 3M+ active databases, 2k+ customers - Up to 95% Compression. Keep years of history online at a fraction of the cost. - Production-ready without the operational pain. Multi-AZ HA, PITR, cross-region backups, SOC 2/HIPAA/GDPR, deep observability. - Scale effortlessly. Disaggregated compute & storage. Never pay for idle capacity. - Unified data architecture. Connect any data source and automatically sync it between your operational database, and data lake. - Hyperscaler procurement. Available on AWS Marketplace and Azure Marketplace. Key capabilities: - Automatic partitioning Ingest millions of data points per second without manual table management or sharding. - Incremental materialized views Precompute and cache rollups for instant dashboards and APIs. - Hybrid row/column storage Fast writes, compressed reads, optimized for real-time and historical queries. - Compression (up to 95%) Columnar encodings apply filters & aggregates directly on compressed data for faster queries and big savings. - Tiered Storage Automatically move older or less-frequently accessed data to low-cost object storage while keeping it fully queryable through the same SQL interface. - Fully managed Postgres Cloud Scale compute and storage independently, tier S3 storage to manage costs, deploy globally, and skip database ops. Industry verticals: Developers and platform teams in Industrial IoT, manufacturing, Crypto, SaaS/ML and DevOps tooling rely on Tiger to combine operational and historical data for real-time dashboards and mission-critical insights, queryable in standard-SQL. How to get started: Try Tiger Cloud for 1-month free with no credit card needed, or use us indefinitely as part of our free plan. Get started now - https://console.cloud.timescale.com/signup?utm_source=g2&utm_medium=referral&utm_campaign=free-trial-g2

Average Rating: 4.6/5.0

Total Reviews: 32

Hazelcast Platform

Hazelcast Platform is the Live Data Platform that delivers data at the speed of relevance, providing the in‑memory foundation for applications that act on data the instant it's created—ensuring businesses never miss a moment of opportunity. By converging distributed caching, compute, stream processing, and real‑time AI into one low‑latency runtime, Hazelcast delivers sub‑millisecond performance, linear scalability, and enterprise resilience. Global 2000 firms trust Hazelcast to simplify architectures, reduce costs, and power mission‑critical, time‑sensitive applications.

Average Rating: 4.3/5.0

Total Reviews: 12

VectorX DB

VectorX DB is a high-performance, secure vector database built for GenAI, RAG, and AI agent workloads. It offers ultra-fast hybrid search, queryable encryption, and memory-efficient indexing — ideal for production-grade AI applications. With native support for LangChain, LlamaIndex, and OpenAI models, VectorX DB helps developers build smarter, safer AI systems. Start free with $300 credits.