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h2oGPT

Private chat and document Q&A with local LLMs

Self-Hosted AI Archived ★ 11.9k stars Medium setup Apache-2.0

This project is archived. Upstream development has stopped, so expect no new features or security fixes. Consider an actively maintained self-hosted ai alternative.

h2oGPT is an open-source platform for private question answering and chat over documents using local or remote LLMs. It supports many file types, web search, and an OpenAI-compatible server.

Official siteSource code

Key features

  • Document Q&A
  • Many file formats
  • OpenAI-compatible API
  • Local and remote models

Strengths

  • Released under the Apache-2.0 license
  • First-class Docker support for quick deployment
  • Mature project with 11.9k GitHub stars
  • Written in Python

Is h2oGPT secure?

1 known vulnerability affects h2oGPT's latest release (0.2.1) according to OSV.dev; the most severe is rated critical.

Affecting 0.2.1

AdvisorySeveritySummary
CVE-2026-65700Criticalh2oGPT 0.2.1 Path Traversal via OpenAI-compatible Files API

Source: OSV.dev, checked 2026-10-14. How this is measured.

h2oGPT replaces

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SelfHostIndex: 15 · archived

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