Work · alternatives · 2026
24 alternatives to Galaxybrain.com – a JSON-based knowledge system
Hi HN, I’d like to share a project I’ve been working on called GalaxyBrain. It’s a tool for organizing information. Key features: Embeddable dynamic metadata: as you type, metadata is generated in the background. This metadata can be accessed and embedded directly into the page. Light programming concepts built in: you can add custom values (think variables) to any page, then reference those values across different pages to build dynamic relationships. Metadata can be chained together: referencing values on other pages, or by using a formula. Updates to anything flow through the entire…
Galaxybrain.com is a JSON-based knowledge organization system that generates metadata automatically as users type and allows embedding that metadata into pages. It includes lightweight programming features like custom… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
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GalaxyBrain▲97GalaxyBrain is a local-first knowledge system where pages have variables, formulas, and live references between them. Every page can have custom variables defined on it, like a lightweight programming environment inside a document. Those variables become metadata you can access and reference from any other page in the system. Change a value anywhere and everything connected to it updates in real time. All data is stored locally as structured JSON files. There's a built-in HTTP API and an MCP tool, so anything you can do in the app you can do programmatically. Point Claude Code, Codex, or a…
Apr 2026 · galaxybrain.com · its alternatives →
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I built this tool because I wanted a way to just take a bunch of URLs or domains, and query their content in RAG applications. It takes away the pain of crawling, extracting content, chunking, vectorizing, and updating periodically. I'm curious to see if it can be useful to others. I meant to launch this six months ago but life got in the way...
2024 · embedding.io · its alternatives →
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After two years of improvement, I think it's time to share it with you all. Here’s a quick overview: - Common features include validation, formatting, minification, and more. - Visualize JSON in a graph or table view. - Structured comparison with fallback to text comparison. - Navigate though JSON using JSON pointer. - Supports jq. Would love to hear the community's questions, thoughts and comments!
2024 · github.com · its alternatives →
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I think agent-first chat interfaces will be a primary software modality and busy dashboard/UI will go away. I’m not sure who exactly wins it, but I want my knowledge to grow/go with me. A lot of the “knowledge” ie research, analysis, reasoning will be done by agents as the primary user. Our current notes tools & tasks management systems were built for humans… I don’t care what the 17th thing on my bug backlog is. I want to conduct agents that can execute for me and do great work. What I built OzBrain to do: + Create a central place for agent reasoned knowledge to live + Be agnostic…
Aug 2026 · ozbrain.com · its alternatives →
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Hey HN, we’re building an open specification that lets agents discover and invoke APIs with natural language, built on the OpenAPI standard. agents.json clearly defines the contract between LLMs and API as a standard that's open, observable, and replicable. Here’s a walkthrough of how it works: https://youtu.be/kby2Wdt2Dtk?si=59xGCDy48Zzwr7ND. There’s 2 parts to this: 1. An agents.json file describes how to link API calls together into outcome-based tools for LLMs. This file sits alongside an OpenAPI file. 2. The agents.json SDK loads agents.json files as tools for an LLM that…
2025 · github.com · its alternatives →
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Understanding scientific articles can be tough, even in your own field. Trying to comprehend articles from others? Good luck. Enter, Now I Get It! I made this app for curious people. Simply upload an article and after a few minutes you'll have an interactive web page showcasing the highlights. Generated pages are stored in the cloud and can be viewed from a gallery. Now I Get It! uses the best LLMs out there, which means the app will improve as AI improves. Free for now - it's capped at 20 articles per day so I don't burn cash. A few things I (and maybe you will) find interesting: * This is…
Feb 2026 · nowigetit.us · its alternatives →
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I shipped a wiki layer for AI agents that uses markdown + git as the source of truth, with a bleve (BM25) + SQLite index on top. No vector or graph db yet. It runs locally in ~/.wuphf/wiki/ and you can git clone it out if you want to take your knowledge with you. The shape is the one Karpathy has been circling for a while: an LLM-native knowledge substrate that agents both read from and write into, so context compounds across sessions rather than getting re-pasted every morning. Most implementations of that idea land on Postgres, pgvector, Neo4j, Kafka, and a dashboard. I…
Apr 2026 · github.com · its alternatives →
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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.…
2025 · github.com · its alternatives →
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My personal knowledge base is hosted on GitHub at https://raphaelsty.github.io/knowledge/. It scans the documents I like every day using GitHub Action, Zotero, HackerNews upvote and Github Likes. It's not yet optimized for smartphones. It cost me $5 to host it for a year.
2024 · github.com · its alternatives →
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We built Sortabase to let communities collaborate on visual databases of the things they know and care about. The fields of each database are defined by its moderators using a no-code drag-n-drop interface, and the resulting database is easy to search, filter, sort, and contribute to. The platform is 100% free to use - take a look, and feedback is appreciated!
2023 · sortabase.com · its alternatives →
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Hey HN! We're Paul, Preston, and Daniel from Zep. We've just open-sourced Graphiti, a Python library for building temporal Knowledge Graphs using LLMs. Graphiti helps you create and query graphs that evolve over time. Knowledge Graphs have been explored extensively for information retrieval. What makes Graphiti unique is its ability to build a knowledge graph while handling changing relationships and maintaining historical context. At Zep, we build a memory layer for LLM applications. Developers use Zep to recall relevant user information from past conversations without including the entire…
2024 · github.com · its alternatives →
- 13JJ
I created jendeley to help organize documents for programmers. - jendeley is JSON-based. You can see and edit your database quickly. - jendeley works locally. Your important database is owned only by you. No cloud. - jendeley is browser-based. You can run it anywhere node.js runs. Repository: https://github.com/akawashiro/jendeley
2023 · akawashiro.github.io · its alternatives →
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Effortlessly visualize JSON structures as dynamic tree diagrams - The-01-Company/jsontr.ee
2024 · github.com · its alternatives →
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A Notion template for staying organized and inspired
2023 · samstoof.gumroad.com · its alternatives →
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Hi HN, I started building Datastripes as part of my thesis, trying to answer a simple question: How can non-technical teams turn raw data into insights without relying on developers or BI tools? What began as research has now grown into a working product, built by a small team, focused on solving that exact problem. Datastripes is a no-code platform for creating dashboards and data visualizations in minutes: no SQL, no setup, no friction. What it does: Connects to CSVs, Google Sheets, or APIs Drag-and-drop dashboard builder Shareable via public links or embed Fully browser-based We’re…
Jan 2026 · datastripes.com · its alternatives →
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Hi HN, I have been working with regulation-heavy documents lately, and one thing kept bothering me. Flat RAG pipelines often fail to retrieve related articles together, even when they are clearly connected through references, definitions, or clauses. After trying several RAG setups, I subjectively felt that GraphRAG was a better mental model for this kind of data. The Microsoft GraphRAG paper and reference implementation were helpful starting points. However, in practice, I found one recurring friction point: graph storage and vector indexing are usually handled by separate systems, which…
Jan 2026 · github.com · its alternatives →
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a lightweight dependency free javascript micro-library for making collapsable trees with JSON
2017 · maxleiter.github.io · its alternatives →
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- 23JCJSON CMS▲37
Hey all, some time ago I already presented my idea on HN with a landing page. Your feedback has been great and very valuable, we continued iterating on the product with customers and now have our first public version online. StorageRoom is a cloud-based CMS built specifically for Mobile Apps. If you have your own mobile app or if you are an agency or freelancer developing apps for others you can use it to create apps faster and to combine the advantages of native mobile applications with the ease of maintenance of websites. http://storageroomapp.com What do you think? Do you see other use…
2011 · storageroomapp.com · its alternatives →
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Hello HN ! I'm Florian, and I would like to share with you a project I've been working on over the past few months: Hyper Workspace. Before working in tech, I have been in the finance industry for more than 10 years. During this time, I've experienced using Excel+VBA and Python notebooks as main interfaces, but never felt completely satisfied. Interfacing potentially complex and nested objects that you need to consume in your applications is still a pain. Modern browsers can offer much more in terms of UI / UX, especially when coupled with JSON data representation, but they require to…
2024 · hyper-workspace.onrender.com · its alternatives →
Also compare
- GalaxyBrain alternatives
- Turn any website into a knowledge base for LLMs alternatives
- JSON For You – Visualize JSON in graph or table views alternatives
- OzBrain, a shared brain for knowledge between agents and your team alternatives
- Agents.json – OpenAPI Specification for LLMs alternatives
- Now I Get It – Translate scientific papers into interactive webpages alternatives
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →