Per-player limits and measured timings; no stability guarantees.
Classic Sandbox
Garry's Mod workshop
Facepunch Source Physics Sandbox · Physics Sandbox / Modded Community
Player tools indexed: 4
Admin consoles: 4
Sandbox limits, measured tick budgets, binds, download estimates, content checks and server configuration.
Player tools (4)
Instant interactive calculations and recipe plannersFind commands and bind a specific action.
Estimate transfer time from effective speed and cache share.
Check client, server, download and update issues.
Server admin and config generation (4)
Config files, startup scripts and command wizards for running a serverGenerate merge snippets while retaining existing credentials and settings.
Validate a SteamID and prepare a trusted-console command.
Separate collection installation from client item downloads; validate IDs.
Prepare mount.cfg entries; server mounts do not supply client assets.
Garry's Mod Ports & Protocols
| Port | Protocol | Purpose |
|---|---|---|
| 27015 | UDP | Game traffic + Steam server-list query |
| 27015 | TCP | RCON remote console |
| 27005 | UDP | Client outbound port (local; normally not opened on the server) |
| 27020 | UDP | SourceTV / HLTV relay (only if enabled) |
FAQ
- Which Garry's Mod server-admin tools are available?
- We list 4 tools for Garry's Mod: server.cfg & FastDL, ULX permissions, Workshop content delivery, Content mount configuration. All of them run straight in your browser.
- Which ports does Garry's Mod need open?
- UDP 27015 carries game and query traffic. TCP 27015 is RCON; allow trusted sources only when needed. UDP 27005 is a client port, normally not a server inbound rule; UDP 27020 is only needed with SourceTV enabled. Check actual launch arguments.
- How do I install a dedicated Garry's Mod server?
- Install it with SteamCMD — the dedicated server app id for Garry's Mod is 4020, so +app_update 4020 validate downloads or updates it. Config files usually live at garrysmod/cfg/server.cfg, garrysmod/cfg/mount.cfg, garrysmod/addons/.
- Do these tools cost anything or need installing?
- No. Everything runs in the page: no install, no sign-up, no cost. Enter your values and the result appears instantly, and you can copy the generated configs and commands with one click.