Simple, transparent pricing

Handler is open source and free to self-host. No accounts, no limits.

Open Source

$0 forever

Full-featured, self-hosted on your own hardware. Your code never leaves your machine.

  • Unlimited sandboxes (Docker + Firecracker)
  • Visual canvas workspace
  • Agent detection & MCP server registry
  • Session persistence & tmux integration
  • Fork & clone sandboxes
  • MIT licensed · No accounts · Works offline
Get Started Free

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