3 Best Open Source Amazon Neptune Alternatives
A curated collection of the 3 best open source and self-hosted alternatives to Amazon Neptune in 2026.
Looking for a free, privacy-friendly, or self-hosted replacement for Amazon Neptune in 2026? The top open-source alternative is Neon Postgres — Cloud-native, auto-scaling Postgres with instant branching, bottomless storage, and pay-per-use pricing.
Other highly rated open-source Amazon Neptune alternatives include OceanBase and Memgraph.
Cloud-native, auto-scaling Postgres with instant branching, bottomless storage, and pay-per-use pricing
Cloud-native, auto-scaling Postgres with instant branching, bottomless storage, and pay-per-use pricing
Scalable, high-availability database system supporting OLTP, OLAP, and hybrid transactional/analytical processing workloads.
Scalable, high-availability database system supporting OLTP, OLAP, and hybrid transactional/analytical processing workloads.
About Amazon Neptune
A fast, reliable, and fully managed graph database service that makes it easy to build and run applications that work with highly connected data.