Underpass
Works with

Works with what you have.
No plugins needed.

Install the app on the computers and servers you already run. Then reach any app on them, the same way you would in the office.

Works with

Runs on the computers and clouds you already have. Reaches every app you already use.

If it runs on your network, you can reach it from anywhere: no special plugins, nothing to change.

soon
soon
Runs on

Where the app runs.
Today, and next.

One small app per device. On servers it runs in the background and comes back after a reboot.

  • WindowsWindows 10 and 11, desktop app and background serviceAvailable
  • Linuxx86-64 and ARM64, runs as a system serviceAvailable
  • Raspberry PiAny Pi running 64-bit LinuxAvailable
  • Docker and WSLRuns inside containers and Windows Subsystem for LinuxAvailable
  • macOS, iPhone and AndroidOn the waySoon
What you can reach

If it has an address,
you can reach it.

Everything below works out of the box, because it's just your apps talking over a private network.

01

Remote access

SSH, Remote Desktop, VNC

02

Databases

Postgres, MySQL, MongoDB, Redis

03

Web apps and dashboards

Grafana, internal tools, admin panels

04

Files and media

Shared folders, NAS, Plex, Jellyfin, Immich

05

Developer tools

Git servers, CI runners, package caches

06

Home

Home Assistant, Pi-hole, cameras

FAQ

Questions about compatibility.

Something we didn't cover? Write to us and we'll help you get set up.

Ask us anything
  • No. Once two devices are connected, anything that listens on an address and a port works, as it would on the same local network.

/ Independent · bootstrapped · no investors

Built by a person,
not a fund.

I'm Endi, and I build Underpass myself. No investors to answer to, only the people who run their networks on it. Every message that comes in reaches me directly.