GalaxyBrain

An information operating system powered by local files

Visit site ↗Alternativestop 14% of April 2026

What it does

GalaxyBrain is a local-first knowledge system where pages have variables, formulas, and live references between them. Define a value on one page, reference it from another, and it stays in sync automatically. Like a programming environment crossed with a document editor. Everything is stored as structured JSON files on your machine. There's a built-in HTTP API and MCP tool so you can point Claude Code, Codex, or a local model at the same folder and build on top of it. No account needed.

Does the same job

all alternatives →

GalaxyBrain.com2025 · ▲65
A JSON-based information operating system
note.mdMay 2026 · ▲243
Local-first markdown based workspace for research writings
SpacebarX10d ago · spacebarx.app · ▲125
A keyboard-first outliner for notes, tasks and projects
Kobra2021 · ▲146
Visual programming for machine learning, like Scratch
PMBJun 2026 · ▲211
Stop re-explaining your project to AI coding agents
Contential2020 · ▲150
JSON, Excel to GraphQL in seconds - Blazing Fast Data Store

More work this month

the category →

Clipto MCP▲640
Let agents source clips from terabytes of your local video
Work · 18d ago · clipto.com
HyNote for Mac▲383
Free local transcription that is 100% Private
Work · 17d ago · hynote.ai
VoiceOS App Store▲330
The app store for voice native apps that lives in your notch
Work · 28d ago · voiceos.com
Scrimba Explain▲325
Ask any question, get a video back instantly
Work · 24d ago · scrimba.com
The New Calendly▲211
Handle all of the work before, during, and after meetings
Work · 17d ago · calendly.com

Launched alongside, April 2026

the whole month →

Brila▲1,367
One-page websites from real Google Maps reviews
AI · Apr 2026 · brila.ai
AG
A game where you build a GPU▲964
Thought the resources for GPU arch were lacking, so here we are
Life & fun · Apr 2026 · jaso1024.com
IB
I built a tiny LLM to demystify how language models work▲915
Built a ~9M param LLM from scratch to understand how they actually work. Vanilla transformer, 60K synthetic conversations, ~130 lines of PyTorch. Trains in 5 min on a free Colab T4. The fish thinks the meaning of life is food. Fork it and swap the personality for your own character.
AI · Apr 2026 · github.com
Fathom 3.0▲803
AI meeting notes: now bot-free, in ChatGPT & Claude + more
AI · Apr 2026 · fathom.ai
BC
Brutalist Concrete Laptop Stand (2024)▲786
Life & fun · Apr 2026 · sam-burns.com
IB
I built a frontpage for personal blogs▲783
With social media and now AI, its important to keep the indie web alive. There are many people who write frequently. Blogosphere tries to highlight them by fetching the recent posts from personal blogs across many categories. There are two versions: Minimal (HN-inspired, fast, static): https://text.blogosphere.app/ Non-minimal: https://blogosphere.app/ If you don't find your blog (or your favorite ones), please add them. I will review and approve it.
AI · Apr 2026 · text.blogosphere.app