Comparison

1DevTool vs Herdr

Visual multi-agent workspace vs terminal agent multiplexer

Last updated August 26, 2026

Short answer

Herdr is a lean TUI agent multiplexer; 1DevTool is the full GUI workspace with Charts, Conversation Mode, and a 23-engine toolchain.

•1DevTool: Charts/pipelines, Conversation Mode, DB/HTTP/browser — From $29 one-time; stable Windows
•Herdr: free AGPL ~10MB binary, agent-state panes, SSH detach/reattach
•Both are agent-agnostic; 1DevTool adds visual Charts and built-in tools
•Pick Herdr if you want zero-deps TUI; pick 1DevTool for the full desktop stack

1DevTool

1DevTool is a visual multi-agent workspace: Charts, teams, pipelines, and Conversation Mode across 14 CLIs, with rate-limit fallbacks — plus Monaco, a 23-engine DB client, HTTP, browser profiles, Docker, and phone remote. From $29 one-time.

Herdr

Herdr is an open-source (AGPL-3.0) terminal-native agent multiplexer written in Rust — a single ~10MB binary with zero dependencies. Think tmux, but agent-aware: every coding agent gets a real PTY pane, and Herdr tracks each one's live state (blocked, working, done, idle). Sessions run on a background server you can detach from and reattach to over SSH — even from your phone — with a CLI and Unix-socket API for orchestration. Free, no accounts, no telemetry, no Electron.

Basics

Feature	1DevTool	Herdr
Price	From $29 one-time	Free (open source, AGPL-3.0)
Type	AI workspace + terminal	Terminal agent multiplexer
Interface	Native GUI	Terminal TUI (mouse-friendly)
Footprint	Desktop app	Single ~10MB binary, zero deps
Platforms	macOS, Windows, Linux	Linux, macOS; Windows (beta)

AI orchestration

Feature	1DevTool	Herdr
Run agents in parallel	Charts, teams & pipelines	Panes, tabs, workspaces
AI CLI agents supported	18 (Claude, Codex, Gemini, Cursor, Cline, Amp, OpenCode, Qwen, Grok, Kimi, Antigravity, Hermes, Pi, Aider, Devin, Kiro, Oh My Pi, Qoder)	Agent-agnostic
Draw org charts & pipelines	✓	✗
Automatic fallback when an agent is rate-limited	✓	✗
Answer agent questions in chat	Conversation Mode	✗
Live agent-state awareness (working / blocked / done)	Per-terminal status	Core feature
Git worktree isolation per agent	✓	✗
MCP server for agents	✓	CLI + Unix-socket API
Bring your own AI subscription (no per-seat AI fee)	✓	✓

Built-in developer tools

Feature	1DevTool	Herdr
Code editor	Built-in Monaco	✗
HTTP / API client	✓	✗
Database client	23 engines	✗
Embedded browser with per-tab profiles	✓	✗
Docker manager	✓	✗
Git graph + worktrees	✓	✗
Send-to-AI from tools	Browser / HTTP / DB → agent	✗
Plugin marketplace	✗	✓

Sessions, Access & Privacy

Feature	1DevTool	Herdr
Tmux-backed session persistence	Survives restart	Background server (detach / reattach)
Resume sessions from Ghostty / iTerm / Warp	✓	✗
Remote access from phone	Phone remote control	SSH thin-client
Local-first, no telemetry	✓	✓
Account required	✗	✗

What you get with 1DevTool

The tools that set 1DevTool apart from Herdr — built in, no plugins.

Multi-Agent Terminals

Popular

Run Claude Code, Codex, Gemini CLI, Amp, OpenCode, Qwen, and custom AI commands in dedicated terminal tabs with recognizable agent logos, custom colors, and status indicators.

Flexible Terminal Layouts

Popular

View terminals in 2×2 grid, side-by-side columns, or single fullscreen mode with resizable panes.

AI Activity Logs

Popular

Real-time activity feed that shows terminal completions and AI-generated files across all projects — with one-click navigation.

Channel Chat

Popular

Create named channels where AI agents and you communicate in real-time — with @mentions, operator orchestration, and multi-turn coordination.

Channel Templates

Popular

Start multi-agent workflows instantly from 10 built-in templates across Review, Build, Test, and Ops categories — each with pre-assigned agent roles.

AI Session Continuity

Popular

Reopen AI terminals with the best available context: native resume when a session is detected, or a saved fallback transcript when it is not.

Explore all 1DevTool features

The Verdict

Choose 1DevTool if...

✓You want Charts, Conversation Mode, and a full visual toolchain — not a terminal-only multiplexer
✓You want a 23-engine DB client, HTTP, and browser profiles wired into Send-to-AI
✓You want rate-limit fallbacks and agents handing work to each other
✓You're on Windows and want a stable desktop app (Herdr's Windows build is beta)
✓You want From $29 one-time with the whole stack included

Choose Herdr if...

•You want a free, open-source, single ~10MB binary with zero dependencies
•You live in the terminal and want tmux-style panes that are agent-aware
•You value live agent-state tracking (blocked / working / done) across the whole herd
•You want to detach and reattach agent sessions over SSH, even from your phone
•You prefer a lean, scriptable tool with a CLI and socket API over a full GUI app

Frequently asked questions

Is 1DevTool just a GUI version of Herdr?

No. Both multiplex agents, but 1DevTool adds Charts, Conversation Mode, rate-limit fallbacks, Monaco, 23-engine DB, HTTP, browser profiles, and Docker — a full workspace, not only panes.