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Myrlin Workbook logo

Self-host Myrlin Workbook

v0.8.6

Unified workspace for AI coding sessions with live terminals

AlphaOpen SourceAGPL-3.0
Updated9 hours ago
LanguageJavaScript
Setup difficultyEasy
MobilePWA
ThemeDark mode
Stars
388
Port
3456 (HTTP server)
Requires
Node.js
Install with NPM
Tour of the app: sidebar, terminal pane with scrollback, Codex session, phone layout, and cost panelSidebar showing Recent list, project folders grouped by directory, Discovered section with provider switcherTerminal pane with live output scrolled back through history and a selection dragged across itCodex project folders and sessions matching the ChatGPT app with session detail stripPhone layout with five tab bar, session opening, keyboard rising under terminal, long-press menuLight and dark chrome with four of the thirteen terminal palettes appliedCost panel with timeline chart and kanban board with card being dragged

What is Myrlin Workbook?

Myrlin Workbook is a local Node.js application that reads session data from Claude Code (/.claude/projects) and ChatGPT Codex (/.codex, including its SQLite database) and presents them in a unified browser-based interface. It provides real terminal access via xterm.js and node-pty with full scrollback through agent transcripts, cost tracking parsed from Claude's usage fields, a kanban board with git worktree integration, project documentation panels, conflict detection between sessions, port monitoring, and a responsive phone layout with five tabs. It runs via npx with no global installation, binds to localhost by default, and can be exposed to LAN or via Cloudflare tunnels. The project is licensed under AGPL-3.0 with no hosted version or paid tiers.

Should you self-host Myrlin Workbook?

Myrlin Workbook scores 47/100 on selfhost.directory (how scoring works) and ranks #98 of 166 in Developer Tools. It has 388 GitHub stars.

It shipped 4 stable releases in the past year. The latest, v0.8.6, came out on 8 March 2026.

Setup is easy: most people get it running in one sitting. It is AGPL-3.0-licensed and written mostly in JavaScript.

Its closest alternative on selfhost.directory is openhands (87/100, 92 068 stars). It scores higher overall, so compare the two before you pick. See Myrlin Workbook vs openhands side by side.

Features

  • 13 terminal color palettes
  • Cloudflare Tunnel management
  • Conflict Detection
  • Cost TrackingCodex shows token counts only (no published pricing)
  • Cross-provider search
  • Git worktree management
  • Kanban board with git worktrees
  • Live terminal with full scrollback
  • Port detection and resource monitoring
  • Project documentation panel
  • Pull request automation
  • Quick switcher (Ctrl+K)
  • Session templates
  • Unified session sidebar

Myrlin Workbook README

How to install Myrlin Workbook

Install Myrlin Workbook with NPM

Environment variables
CWM_PASSWORD (override generated password), CWM_HOST (bind address for LAN access), CWM_VT_SIDECAR=1 (enable headless VT sidecar)

npx myrlin-workbook@alpha # v1.3 alpha: Claude Code and ChatGPT Codex, redesigned, phone layout npx myrlin-workbook # v0.9 stable: Claude only, unchanged npx myrlin-workbook --demo # sample data, no real sessions needed

Runs directly from npm without global installation. Node 20+ required. C++ build tools needed for node-pty (terminal panes).

Myrlin Workbook releases & version history

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