An open souce graph database written in Prolog and Rust
TerminusDB is a distributed, collaborative database designed for building, sharing, versioning, and reasoning on structured data. - terminusdb/terminusdb
An open souce graph database written in Prolog and Rust launched on February 1, 2020 with 29 votes, #639 of 3,162 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 6 years on.
In plain words
An open source graph database built with Prolog and Rust, launched in 2020. It is designed for developers who need to store and query interconnected data structures. The database combines Prolog's logical query capabilities with Rust's performance and safety features, making it suitable for applications requiring complex relational queries and reliable data management.
written from the facts on this page · September 2026
Does a similar job
all alternatives →- TATerminusDB – An open source in-memory graph database2020 · terminusdb.com · ▲231
HelixDB – Open-source vector-graph database for AI applications (Rust)2025 · github.com · ▲237Hey HN, we want to share HelixDB (https://github.com/HelixDB/helix-db/), a project a college friend and I are working on. It’s a new database that natively intertwines graph and vector types, without sacrificing performance. It’s written in Rust and our initial focus is on supporting RAG. Here’s a video runthrough: https://screen.studio/share/szgQu3yq. Why a hybrid? Vector databases are useful for similarity queries, while graph databases are useful for relationship queries. Each stores data in a way that’s best for its main type of query (e.g.…
OSS linked JSON knowledge graph2021 · github.com · ▲5TerminusDB is a distributed, collaborative database designed for building, sharing, versioning, and reasoning on structured data. - terminusdb/terminusdb
TerminusDB 2.0 - time traveling FOSS database that stores data like Git2020 · github.com · ▲13TerminusDB is a distributed, collaborative database designed for building, sharing, versioning, and reasoning on structured data. - terminusdb/terminusdb
Nebula – a distributed graph database written in C++2020 · github.com · ▲178A distributed, fast open-source graph database featuring horizontal scalability and high availability - GitHub - vesoft-inc/nebula: A distributed, fast open-source graph database featuring horizontal scalability and high availability
More dev tools this month
the category →
open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.
Dev tools · 28d ago · github.com
Contribute to reladraw/reladraw development by creating an account on GitHub.
Dev tools · 26d ago · github.com
OpenBot▲362Grok Bot alternative: free, local, open-source, multiplayer
Dev tools · 23d ago · openbot.run
Talanoa▲346Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…
Dev tools · 21d ago · talanoa.email
CoreSpeed▲332One MCP for everything your agents need: apps, memory, tools
Dev tools · 28d ago · corespeed.io
Source: Show HN post ↗
Launched alongside, February 2020
the whole month →
- SC
Dev tools · 2020 · grep.app
- PH
Profit Hunt | Discover ideas that make money
Commerce · 2020 · profithunt.co