HoTTY is an open-source terminal emulator for Windows. Connect over SSH, Telnet, Serial, WSL, or a local shell; arrange sessions in a multi-pane workspace; and call on the AI provider of your choice — only when you want it.
The protocols a Windows engineer reaches for day to day — each with the connection options the app actually exposes.
Host key verification with fingerprint display, private-key authentication, and configurable KEX, cipher, MAC, and host-key algorithms.
Plain Telnet with selectable text encoding per session — UTF-8, Shift_JIS, or EUC-JP.
USB / COM console access with configurable baud rate, data bits, parity, stop bits, and flow control.
Open any installed Windows Subsystem for Linux distribution directly, with distribution selection.
cmd, PowerShell / pwsh, and Git Bash run as ordinary sessions in the same workspace.
Reach Compute Engine instances through a Google Cloud IAP tunnel — no public IP needed, authenticated by gcloud. Pick project, zone, and instance.
Split the window into a grid, dock tool sidebars on any edge, and move sessions around by keyboard or drag.
1×1, 1×2, 2×1, 2×2, 2×3, and 3×2. The active pane is outlined and lit with an accent glow.
Collapsible left, right, top, and bottom panels, each resizable by a grip strip.
Move pane focus by keyboard; drag tabs to reorder them or to assign a session to a specific pane.
Bring your own API keys and pick a provider and model per session. AI is optional, and it never executes anything you haven't allowed.
A dedicated chat pane with streaming responses, switchable personas, and per-message token and cost tracking.
Right-click selected terminal output and run a built-in or custom prompt against it — explain an error, summarize a log.
The AI proposes and can run commands — gated by a managed Whitelist / Blacklist and a safety classifier, so risky commands aren't auto-executed.
Let the AI follow live terminal output and send captured logs to the model to surface anomalies as they happen.
Four built-in utilities that live in the same layout as your sessions.
Browse and read the session log files HoTTY writes.
Open, edit, and save files, with line-ending control.
Browse directories and drives; open files straight into the editor.
Watch multiple targets at once with configurable intervals.
The storage and verification details, stated plainly.
Stored credentials are encrypted with Windows DPAPI.
SSH host keys are verified, with the fingerprint shown for confirmation.
Multi-line clipboard content prompts a confirmation before it reaches the terminal.
Export and import your host tree as an encrypted .htree file.
Write a session to a log file, with per-session text encoding.
Configure KEX, cipher, MAC, and host-key algorithms; GCE IAP tunnels are supported.
Free and open source under GPL-3.0. Download a build from GitHub Releases, or build it yourself from source.