Containarium
AI Agents
v0.120.1
Containarium provides persistent, isolated Linux environments for AI agents.todayApache-2.0No DockerAdvanced
Self-hosted alternatives to Modal
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Also in AI Agents
Not listed as Modal alternatives, but they cover the same ground and are worth a look.
SandBase HarnessSelf-hosted, open-source runtime for AI agent sessions: sandboxes, MCP toolsets, credential vaults, memory, audit replay, and a built-in web Console.
TrinityTrinity is a self-hosted, open-source platform for running AI agents in production with human approval gates, git-native state, and audit trails.
open-managed-agentsSelf-hosted open-source agent platform managing sessions, execution, recovery. Supports any model, harness, sandbox via Docker, Node.js, Fly.io, Cloudflare.
bullxSelf-hosted AI agent platform with a Company Brain that learns from conversations. Agents run in isolated containers. Integrates with Slack, Teams, and other chat tools.
HexisHexis is a self-hosted, open-source platform for managing AI-agent skills, tools and context via a Git-backed repository, accessible through MCP.
oc8oc8 is a self-hosted, open-source platform for orchestrating AI agents that work across business software using the Model Context Protocol with human oversight.
About these Modal alternatives
1 open-source, self-hosted alternatives to Modal are listed here, ranked by popularity, maintenance and documentation.
- Highest rated
- Containarium (313 GitHub stars, Apache-2.0 license, written in Go)
- Recently updated
- Containarium v0.120.1 on 2026-10-28
Modal alternatives compared
| Project | License | Language | Stars | Docker | Setup | Latest release | Score |
|---|---|---|---|---|---|---|---|
| Containarium | Apache-2.0 | Go | 313 | — | Advanced | v0.120.1 | 49 |