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Agentic Development Environment

Agentastic.dev is the first ADE for Agents–Human collaboration: isolation, terminal-first, browser-use, code-review, persistent remote SSH, Cloud Agent
Agent-agnostic, fully controllable and observable through the dev CLI.

Download

0.8.6 | macOS 14+

or brew install agentasticai/tap/dev

MacBook Pro running Agentastic.dev multi-agent IDE for macOS
Agentastic.dev desktop view with multiple AI coding agents running in parallel worktrees

One window. Every agent.

Code, terminals, git, a browser, and 30+ AI agents — together in a single native macOS workspace.

Agents
C
Claude Code
feat/auth-flow
Working
Done
C
Codex
fix/n+1-query
Working
G
Gemini
ui/kanban-dnd
Needs input
C
Cursor joined · docs/readme

Use any agent.

Agentastic.dev is agent-agnostic and works with 30+ coding agents. Switch between agents seamlessly.

[ Parallel Agents ]
mainfeat/auth-flow⑃ worktree · claudefix/n+1-query◆ apple container · codexui/kanban-dnd◇ docker · geminiapi/webhooks⑃ worktree · grok

Every change, fully isolated.

Each agent works in its own git worktree or container — both Apple containers and Docker are supported. Zero merge conflicts, zero cross-contamination.

[ Isolation ]
AuthService.swift
✓ Reviewed
11 func refresh(_ token: Token?) {
12- let value = token!.raw
12+ guard let token else { return nil }
13+ let value = token.raw
14 return validate(value)
🐰
CodeRabbit — the force-unwrap would crash on an expired session. The guard handles it cleanly.

Review every diff before it ships.

A native diff viewer plus agentic review from Claude, Codex, and CodeRabbit — catch issues before you merge.

[ Code Review ]
dev-server
acme-app · feat/auth-flow
claude-code
1+
2+
3
4+
5+
6
7+
SSH

Run anywhere. Even while you sleep.

Run agents on any dev server over SSH, or on Modal, Fly, and Vercel — persistent sessions that keep running 24/7, even after your Mac sleeps.

[ Remote & Cloud ]
localhost:3000
Design Mode
Ship faster
Get started
<CtaButton /> · 224×48
<CtaButton />
claude-code
element.html
styles.css
crop.png
Describe a change…

Agents test your app in a real browser.

A built-in browser agents can drive — full browser-use, React Grab, and one-click share, right beside your code. Design Mode: click any UI element in a real Chromium window to send its HTML, CSS, and a cropped screenshot straight into your agent's prompt.

[ Browser ]
Agentastic.dev — website-update-2
CodeEdit
Packages
src
main.rs
terminal.rs
watcher.rs
Cargo.toml
main.rs
zsh
53fn timestamp_utc() -> String {
54 let now = SystemTime::now()
55 .duration_since(UNIX_EPOCH).unwrap_or_default();
56 format!("{:04}-{:02}", year, month)
57}
main.rs — RustLn 55, Col 26
100 fps

Sometimes you just want to code.

A fast native editor, built in — tree-sitter syntax highlighting at a buttery 100 fps. Make the fix yourself without leaving Agentastic.

[ Built-in IDE ]

34 Supported Agents

Agentastic auto-discovers coding agents installed on your system, including Hermes Agent. Any terminal-based agent works out of the box.

Claude CodeClaude Code
CodexCodex
Command CodeCommand Code
Gemini CLIGemini CLI
Grok BuildGrok Build
DevinDevin
Hermes AgentHermes Agent
CursorCursor
CopilotCopilot
JunieJunie
Claude CodeClaude Code
CodexCodex
Command CodeCommand Code
Gemini CLIGemini CLI
Grok BuildGrok Build
DevinDevin
Hermes AgentHermes Agent
CursorCursor
CopilotCopilot
JunieJunie
OpenHandsOpenHands
Letta CodeLetta Code
Cortex CodeCortex Code
OB-1OB-1
AmpAmp
DroidDroid
OpenCodeOpenCode
Qwen CodeQwen Code
Kilo CodeKilo Code
ClineCline
OpenHandsOpenHands
Letta CodeLetta Code
Cortex CodeCortex Code
OB-1OB-1
AmpAmp
DroidDroid
OpenCodeOpenCode
Qwen CodeQwen Code
Kilo CodeKilo Code
ClineCline
ContinueContinue
GooseGoose
CharmCharm
CodebuffCodebuff
KiroKiro
KimiKimi
AuggieAuggie
Rovo DevRovo Dev
Mistral VibeMistral Vibe
PiPi
AiderAider
AutohandAutohand
mini-SWE-agentmini-SWE-agent
AgentasticAgentastic
ContinueContinue
GooseGoose
CharmCharm
CodebuffCodebuff
KiroKiro
KimiKimi
AuggieAuggie
Rovo DevRovo Dev
Mistral VibeMistral Vibe
PiPi
AiderAider
AutohandAutohand
mini-SWE-agentmini-SWE-agent
AgentasticAgentastic

How it works

1. Add your git repo

Agentastic.dev handles worktree creation and management.

2. Deploy agents

Each worktree gets its own Ghostty terminals. Run Claude Code, Codex, Command Code, Gemini, Grok Build, Junie, OpenHands, or any of the 30+ supported agents in an isolated workspace.

3. Review code

See who's working, what needs attention, and review code with built-in diff and merge tools.

Frequently asked questions

Free without limits. No sign-up required. No strings attached. We don't charge for the agents. For Agents, you'll need agent subscriptions (Claude Code/Codex/Gemini/Junie/etc) or API access. You pay vendors (Anthropic/OpenAI/Google/JetBrains/etc) directly.

Agentastic.Dev does not collect your source code, file contents, prompts, account details, email, name, or other personally identifiable information for training or analytics. We may send anonymous diagnostic data to Sentry to debug crashes and app hangs, such as an anonymous installation ID, app version, macOS/device context, stack traces, crash or hang details, and network failure metadata.

Each agent runs in its own isolated branch in Git worktree or docker container; they can work simultaneously without conflicts. You can monitor all agents in real-time and switch between them instantly.

Yes, each Agentastic workspace is a new git worktree. This allows each coding agent to work in complete isolation without conflicts.

We support 33 built-in CLI agents, including Claude Code, Codex, Command Code, Gemini, Hermes Agent, Cursor, GitHub Copilot, Junie, OpenHands, Letta Code, Cortex Code, OB-1, Amp, Droid, Goose, Aider, Cline, OpenCode, and more. Any terminal-based agent can also be added as a custom agent. We also support Claude, Codex, and CodeRabbit for code review. Want to see something else? Email us at hi@agentastic.ai.

Agentastic.dev requires macOS 14.0 (Sonoma) or later and runs on both Apple Silicon and Intel processors.

Right now Dev is still in closed development. But our goal is to build an open, community-driven ecosystem, and extensibility is on the roadmap. If you'd like to shape what that looks like, ping us on Twitter or join our Discord!

Dev supports hooks, including .agentastic/setup.sh, which executes upon worktree creation. You can setup your environment variables or copy them using this hook. See the documentation for more examples.

We’d love to hear from you