Open sourceTypeScript · ≈18k stars · MIT
Leon
Open-source, privacy-aware personal AI assistant with tools, memory and agentic execution.
Leon is an open-source personal AI assistant first released in 2019 as an intent-classification assistant and now being rebuilt around tools, context, layered memory and agentic execution in a 2.0 Developer Preview. It offers smart, controlled (deterministic native skills) and agent (step-by-step planning) modes, supports SKILL.md-backed agent skills, and includes progressively loaded computer use for desktop and browser interfaces. It can use local or remote AI providers to balance privacy and capability.
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Connections
Relations from the Harness Hub knowledge graph, as charted in the State of Harness reports.
Maintained by · 1
- Leon AIOrganisation
Sources
Verified Oct 29, 2026