Built in the open
v2026.03.18 — Open Source · Apache 2.0
Your AI forgets SynaBun remembers
Just like your memories, your AI memories should
also be personal, local and safe
Why Memory changes everything
Persistent AI Memory for Vibe Coding
Without memory, every AI session starts from zero. Every bug you fixed, every pattern you discovered, every decision you made, gone. SynaBun gives your AI a mind that grows wiser across sessions, projects, and time.
Recall by Meaning
Forget exact keywords. Just ask naturally and SynaBun understands what you mean. It connects your question to the right memory, even months later, even when you phrase it completely differently.
Your Knowledge, Alive
Memories are not a black box. Explore them in a living 3D space, organize them, shape them, and watch connections form on their own. A knowledge base you can see, touch, and understand.
Features Powerful by default Zero configuration
Session Start
Close your laptop. Open it tomorrow. Your AI already knows what you were building, what broke, and what's next. No "where were we?" ever again.
Save Anything
Tell your AI to remember a decision, a fix, an API quirk. It stores the full context with tags, importance, and file links. Not a bookmark — a memory.
Instant Recall
Forgot how you solved something three weeks ago? Describe it in your own words. SynaBun searches by meaning, not keywords — so "that auth thing" actually works.
Cross-AI Memory
Used Gemini for research? GPT for a brainstorm? Tell Claude what you found, it saves the knowledge. Switch models, switch providers — your context travels with you.
Update & Evolve
Decisions change. Code evolves. Update any memory in place — new content, new tags, bumped importance. Your knowledge base stays current, not fossilized.
Drift Detection
Refactored a file? SynaBun compares file checksums against stored memories and flags anything stale. Your AI never gives advice based on code that no longer exists.
Auto-Organized
Bug fixes go to bug fixes. Architecture calls go to architecture. Your AI reads category routing rules and sorts every memory on its own. One question pulls them all back.
Autonomous Loop
Give your AI a repeating task and walk away. It runs up to 50 iterations — fixing lint errors, migrating files, updating imports. You come back to a changelog.
Browser Control
A fully headed Chrome browser your AI controls directly. Opens pages, clicks buttons, fills forms, takes screenshots — with persistent sessions and cookies that survive across conversations.
Visual Whiteboard
Ask your AI to diagram an architecture, sketch a data flow, or map out a migration plan on the Neural Interface whiteboard. Visual thinking, on demand.
/synabun
One slash command, four tools. Brainstorm from your past work, audit stale memories, run a system health check, or deep-search everything you've ever saved.
Pattern Learning
Week one, it helps. Month three, it thinks like you. Accumulated memories teach your AI your conventions, your naming style, your go-to patterns. It stops guessing.
Technology Built on giants
Open protocols, best-in-class vector storage, and state-of-the-art neural embeddings. No vendor lock-in, no compromises.
Model Context Protocol
The open standard that lets AI talk to any tool. It's how SynaBun plugs into Claude and other assistants without locking you into one provider.
Embedded Database
Where your memories actually live. SQLite is a lightweight, zero-config embedded database that stores vectors and metadata locally — no server process, no Docker, no network overhead. Just a single file on disk.
Browser Automation
Give your AI its own fully headed Chrome browser. Not a headless scraper, a real browser it can see and control. Navigate, click, fill forms, screenshot, extract data, automate social media. Sessions and cookies persist across conversations. 38 Playwright-powered tools for true internet access.
JavaScript Runtime
The engine running under the hood. Node.js is trusted by millions of apps worldwide and keeps SynaBun fast, reliable, and easy to extend.
Local Embeddings
Neural embeddings that run entirely in Node.js. The all-MiniLM-L6-v2 ONNX model downloads once (~23MB) and generates 384-dimensional vectors locally — no API keys, no network calls, no cost.
3D Visualization
See your memories as a living 3D map you can spin, zoom, and explore. Connections between ideas appear naturally so you can understand how your knowledge fits together.
SynaBun MCP Bundle 67 tools
Memory, browser automation, visual workspace, and autonomous loops. One MCP connection. Install once, unlock everything.
SynApp Your AI workspace, visualized
{time_greeting} — Good morning / afternoon / evening{project_label} — Project display name{branch} — Current git branch{date} — Today's dateclaude — Default, uses system PATH/opt/homebrew/bin/claude — Custom Unix pathC:\Users\me\.npm\claude — Custom Windows pathwsl claude — Run via WSL on Windowswsl -d Ubuntu gemini — Specific WSL distro
your AI's Playground
Ask Claude to pin a memory and it appears here — architecture decisions, bug investigations, research notes, all summoned to a shared canvas you can drag, rearrange, and explore.
App Router for native RSC support, streaming SSR, and nested layouts. Trade-off: steeper curve, some libs not RSC-ready.
Bug: Two simultaneous task updates could cause stale data. Optimistic cache update + server response arriving out of order.
Fix: Added a version counter to each entity. Mutation includes expected version, server rejects stale writes with 409 Conflict. Client retries with fresh data.
Verified fix under load — 500 concurrent writes, zero data loss. P99 latency unchanged at 42ms.
Compared SQLite, Pinecone, and Weaviate. Winner: SQLite — zero-config, file-based, built into Node.js 22.5+, no external process needed.
Connects Every model, one memory
One MCP server syncs across every AI surface simultaneously. Switch tools mid-thought, your context is already there.
Install One command, you're ready
Install SynaBun, run the onboarding wizard, and your AI starts remembering. SQLite and local embeddings are built in — the wizard handles the rest.
localhost:3344100% free, 100% local (99% if you don't self-host your embedding key)