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Top 23 Memory Open-Source Projects
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Understand-Anything
Graphs that teach > graphs that impress. Turn any code into an interactive knowledge graph you can explore, search, and ask questions about. Works with Claude Code, Codex, Cursor, Copilot, Gemini CLI, and more. (by Egonex-AI)
Understand Anything — interactive code knowledge graphs
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AppSignal
AppSignal knows why the f*#k it crashed. Stop vibe-debugging. Every exception, every backtrace, grouped so you see patterns, not noise.
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mem0
The Memory Layer for AI Agents - Drop-in memory infrastructure for AI agents and apps. Context that persists. Built for production.
Mem0 is the shortest path from nothing to an assistant that remembers a user. Its API is four calls wide: add, search, update, delete. Apache-2.0 for the library, with a managed platform sold separately.
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Project mention: OKF Agent Memory – Git-native persistent memory for AI coding agents | news.ycombinator.com | 2026-09-05
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OpenViking
Self-evolving Context Database for AI Agents. Unify Agent Memory, Knowledge RAG and Skills.
Project mention: OpenViking’s Filesystem View of Agent Context Is a Welcome Escape from RAG Glue Code | dev.to | 2026-09-05git clone https://github.com/volcengine/OpenViking.git cd OpenViking pip install -e . python -m openviking.server --config config.yaml
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supermemory
Memory and context engine + app that is extremely fast, scalable, and can be run fully locally. The Memory API for the AI era.
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TencentDB-Agent-Memory
TencentDB Agent Memory is a team-level memory hub for AI Agents — turning conversations, docs, and code into four reusable memory assets (Chat Memory, Skill, LLM-Wiki, Code-Graph) that are governed, shared, and equipped across agents and frameworks.
Project mention: TencentDB Agent Memory: A team-level memory hub for AI agents | news.ycombinator.com | 2026-08-05 -
12-factor-agents
What are the principles we can use to build LLM-powered software that is actually good enough to put in the hands of production customers?
Project mention: 12-Factor Agents – Principles for building reliable LLM applications | news.ycombinator.com | 2026-08-16 -
Kargo
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The memory interface shapes everything downstream. Committing to Hindsight's retain/recall abstraction early made the rest of the code straightforward. The LLM layer doesn't know where notes came from. The Flask layer doesn't know how retrieval works. Those boundaries are cheap at the start and expensive to add later.
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Worth reading alongside these: agentmemory#648, a stability pass where two separate bugs turned out to share one root cause — a daemon wrapper surviving stop — and the dawnai memory-tooling commit, which adds a gated live-smoke suite for exactly the reason I am writing this post: some behaviors only appear against a real backend, so they gate a separate suite on a real key and keep it out of CI.
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memvid
Memory layer for AI Agents. Replace complex RAG pipelines with a serverless, single-file memory layer. Give your agents instant retrieval and long-term memory.
Project mention: memvid VS verified-memory-vault - a user suggested alternative | libhunt.com/r/memvid | 2026-08-26 -
Memori
Memori is agent-native memory infrastructure. A LLM-agnostic layer that turns agent execution and conversation into structured, persistent state for production systems. Built for enterprise, Memori works with the data infrastructure you already run, no rip-and-replace, and deploys across managed cloud, single-tenant cloud, VPC, and on-premises.
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Project mention: MemU – Personal Memory Shared by Codex, Claude Code, and Hermes | news.ycombinator.com | 2026-07-27
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Project mention: Dissecting Semantica’s Graph-Native Core: The Missing Layer Between Context and Accountability | dev.to | 2026-09-04
git clone https://github.com/semantica-agi/semantica.git cd semantica python3 -m venv .venv . .venv/bin/activate python -m pip install --upgrade pip python -m pip install -e .
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holaOS
Open-source agentic workspace enterprises can make their own. Connect the systems you already run — 100+ integrations, MCP, chat tools, apps, browser, local files — with shared memory. Any agent (Claude Code, Codex), any model, or BYOK. Set up in clicks, not months. Local-first: your data never leaves your machines.
Project mention: Show HN: HolaOS––An Opensourced workspace that alternative to Claude | news.ycombinator.com | 2026-09-11 -
MemOS
Self-evolving memory OS for LLM & AI Agents: ultra-persistent memory, hybrid-retrieval, and cross-task skill reuse, with 35.24% token savings and DeepSeek Harness support. (by MemTensor)
Project mention: Top 10 OpenClaw Development Patterns and Architecture Best Practices | dev.to | 2026-02-18Repository: https://github.com/MemTensor/MemOS Architecture Pattern: Layered Memory System
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memreduct
Lightweight real-time memory management application to monitor and clean system memory on your computer.
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Project mention: Dawarich: Self-Hostable Alternative to Google Timeline (Google Location History) | news.ycombinator.com | 2026-03-08
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PixelRAG
https://arxiv.org/abs/2606.28344. The end of web parsing. The beginning of scalable pixel-native search. link: https://pixelrag.ai/
Project mention: Using PixelRAG with Claude Code (August 2026) — Visual RAG for Documents with Tables and Diagrams | dev.to | 2026-08-16git clone https://github.com/StarTrail-org/PixelRAG.git cd PixelRAG ./plugin/setup.sh claude --plugin-dir ./plugin
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Understand-Anything
Graphs that teach > graphs that impress. Turn any code, or knowledge base (Karpathy LLM wiki), into an interactive knowledge graph you can explore, search, and ask questions about. Works with Claude Code, Codex, Cursor, Copilot, Gemini CLI, and more.
Project mention: Understand Anything – Graphs that teach the codebase | news.ycombinator.com | 2026-05-26 -
Pinned Honcho source tree
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Memory discussion
Memory related posts
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OKF Agent Memory – Git-native persistent memory for AI coding agents
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Show HN: Open-source agent memory layer, 96% on LongMemEval, local-first
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OpenViking’s Filesystem View of Agent Context Is a Welcome Escape from RAG Glue Code
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How do you keep your AI agent skills from rotting silently?
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Show HN: Knowl – agent memory with write-time supersession, 0.90 on MAB
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Show HN: ChatGPT plugin for deterministic world facts
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Show HN: Memanto Is a Memory Agent
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A note from our sponsor - Kargo
akuity.io | 12 Sep 2026
Index
What are some of the best open-source Memory projects? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | Understand-Anything | 81,691 |
| 2 | mem0 | 65,051 |
| 3 | mempalace | 58,991 |
| 4 | OpenViking | 36,658 |
| 5 | supermemory | 29,606 |
| 6 | TencentDB-Agent-Memory | 26,052 |
| 7 | 12-factor-agents | 25,799 |
| 8 | hindsight | 23,410 |
| 9 | agentmemory | 20,972 |
| 10 | memvid | 16,541 |
| 11 | Memori | 16,427 |
| 12 | memray | 15,218 |
| 13 | memU | 14,385 |
| 14 | Semantica | 12,710 |
| 15 | Agent-S | 12,262 |
| 16 | psutil | 11,272 |
| 17 | holaOS | 11,205 |
| 18 | MemOS | 11,203 |
| 19 | memreduct | 10,466 |
| 20 | dawarich | 10,325 |
| 21 | PixelRAG | 9,926 |
| 22 | Understand-Anything | 8,502 |
| 23 | honcho | 7,036 |
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