NodeDB

What it does

One database for everything your app needs. Store user data, cache sessions, build AI search, and map relationships: all in one place. Instead of duct-taping Postgres, Redis, a Vector DB, and a Graph DB together, NodeDB gives you all of it in a single system.

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  LatticeDB – Like SQLite but for graph databases12d ago · github.com · ▲190

  We have been using graph DBs more and more at work. I found them painful to work with locally and decided to try and build something better.

• HO
  HelixDB – Open-source vector-graph database for AI applications (Rust)2025 · github.com · ▲237

  Hey 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.…

• PA
  Postgres as a VectorDB GUI2024 · github.com · ▲162
• VD
  Visualize database schemas with a single query2024 · github.com · ▲227

  Hey HN! We are Jonathan & Guy, and we are happy to share a project we’ve been working on. ChartDB is a tool to help developers and data analysts quickly visualize database schemas by generating ER diagrams with just one query. A unique feature of our product is AI-Powered export for easy migration. You can give it a try at https://chartdb.io and find the source code on GitHub. Next steps ---> More AI. We’d love feedback :)

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  bit.io2021 · ▲130

  All your data in one place

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  Serverless PostgreSQL Platform by Xata2024 · ▲152

  Postgres, powered up

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  Dograh▲592

  The open source VAPI alternative

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  Meridian▲530

  Don't let your work go unnoticed. Get promoted!

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  Lovable for iPhone apps go from idea to App Store

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  The first open-source price index for GPU compute

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  OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.

  Dev tools · 2d ago · opentrailpaper.com

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  The GTM Co-Founder▲402

  Open-source GTM skills for technical founders

  Dev tools · 29d ago · gtmcofounder.com

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  Like Claude design for email marketing

  AI · May 2026 · brew.new

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  Parallel agents, diff reviewer, and multi-model comparisons

  Dev tools · May 2026 · kilo.ai

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  Grow your store profits with agents that know how to sell

  AI · May 2026 · storeclaw.ai

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  PollyReach▲796

  Give your agent a real number and voice to make calls.

  AI · May 2026 · pollyreach.ai

• NW
  Needle: We Distilled Gemini Tool Calling into a 26M Model▲776

  Hey HN, Henry here from Cactus. We open-sourced Needle, a 26M parameter function-calling (tool use) model. It runs at 6000 tok/s prefill and 1200 tok/s decode on consumer devices. We were always frustrated by the little effort made towards building agentic models that run on budget phones, so we conducted investigations that led to an observation: agentic experiences are built upon tool calling, and massive models are overkill for it. Tool calling is fundamentally retrieval-and-assembly (match query to tool name, extract argument values, emit JSON), not reasoning. Cross-attention…

  Life & fun · May 2026 · github.com

• FM
  Files.md – Open-source alternative to Obsidian▲730

  Dev tools · May 2026 · github.com