The Grid is 13x's main workspace: a dense, monochrome tile layout where each cell is a real interactive PowerShell session rooted in the same project folder. Pick a count or a saved rig, hit LAUNCH, and watch every shell at once.
The Grid lays out 2 to 12 real interactive PowerShell shells side by side, all rooted in one project path. Each cell is a genuine PTY session — dev server, tests, git, and coding agents — so you can drive any of them by keyboard and zoom one to full screen without killing the rest. It replaces the chaos of juggling many terminal windows for a single project with one compact window you can watch all at once.
Each card is a genuine PowerShell session over a portable-pty/ConPTY pseudo-terminal. Prompts, ANSI output, and interactive CLIs like git, npm, cargo, and claude all work — output streams into xterm.js and keystrokes forward straight back.
The only process the Grid starts is the PowerShell shell itself. Terminal output stays on your machine — no cloud, no accounts, no telemetry, no network calls.
Pure black, white, and grayscale. ANSI colors are remapped to grayscale so colored CLI output stays legible without hue — workstation-grade minimalism, dense and dark-only.
xterm.js instances live in an imperative registry, not the React tree, so a terminal moves between its grid card and full-screen focus — or survives the grid unmounting — without losing scrollback or its PTY.
Arrow-key selection that matches the on-screen column layout, Ctrl+1..9 to zoom a pane, Ctrl+Space to jump to the agent that needs you, and clipboard-aware Ctrl+C/Ctrl+V inside terminals without losing SIGINT.
Sessions are tagged with a workspace. The grid, broadcast, tallies, and chords scope to the active workspace while other open workspaces keep running and updating live — kill one without touching the others.
Pick a path and a count
Choose a project folder, then pick a shell count — 2, 4, 6, 8, 10, or 12 — or load a saved rig layout instead. LAUNCH stays disabled until a project path is selected.
Launch every slot at once
Hit LAUNCH (or Ctrl+L). Each slot opens in the chosen folder, auto-start slots type their command, and the grid renders one card per slot from the frozen launched roster — best-effort, so a slot that fails to spawn is reported per-slot while the rest keep running.
Drive and zoom any pane
Click into a card and type; output streams back live. FOCUS or Ctrl+1..9 maximizes one terminal to full screen while every other session keeps running in the background. BACK TO GRID or Esc returns to the overview.
Control shells individually
RESTART relaunches a single shell in place, STOP terminates just that one, CLEAR wipes its scrollback, and REC/END captures a terminal's raw output as a run log. KILL ALL (Ctrl+K, with a confirm) tears down the whole active workspace.
Resume from a checkpoint
The grid silently checkpoints on launch, slot start/stop, kill-all, and every 30 seconds while running, writing to .13x/snapshots/latest.json so the whole rig can be resumed later.
Pick 2, 4, 6, 8, 10, or 12 shells for the default grid, or load a saved rig with its own slot layout. Every slot opens at once in the selected project path.
PowerShell only. Every slot runs pwsh, falling back to powershell.exe on Windows or a POSIX login shell as a last resort on macOS/Linux. There is no per-slot bash/zsh/cmd selection.
No. The Grid is fully local — the only process it starts is the PowerShell shell, and terminal output stays on your machine with no cloud, accounts, telemetry, or network calls.
Yes. Click FOCUS or press Ctrl+1..9 to maximize a pane full-screen; every other session keeps running in the background. BACK TO GRID or Esc returns to the overview.
13x is local-first and free of telemetry — your code, commands and shells never leave the machine. Join the waitlist for the next build.