Memory & PersistenceOpen Source✦ Free Tier

EverOS

Local-first, markdown-native memory runtime for agents

11,500 stars● Health 100/100 — Active· commit recency (40 pts) · star momentum (30 pts) · issue ratio (20 pts) · forks (10 pts)App Infrastructure

About

Open-source agent memory runtime storing state as plain markdown with hybrid BM25 + vector retrieval, plus 'self-evolving' skills that update from experience. Local-first alternative to hosted memory layers like Mem0 and Letta.

Choose EverOS when…

  • You want agent memory stored as plain, human-readable markdown files
  • You need local-first memory with no hosted service dependency
  • You want hybrid keyword + vector retrieval out of the box

Builder Slot

How does your AI remember?Optional for most stacks

Persistent memory layers that give AI agents long-term recall of users, sessions, and context across conversations

Dev Tools
Not applicable
App Infra
Optional
Hybrid
Optional

Other tools in this slot:

Alternatives to consider (2)

Pricing

✦ Free tier available
OSSFree

Pulse

● No incidents in the last 90 days

Recent Activity

View all activity for this tool →

Badge

Add to your GitHub README

EverOS on AIchitect[![EverOS](https://www.aichitect.dev/badge/tool/everos)](https://www.aichitect.dev/tool/everos)

Explore the full AI landscape

See how EverOS fits into the bigger picture — browse all 207 tools and their relationships.

Explore graph →