Munder Difflin
Verified Oct 15, 2026 ActiveOpen-source desktop harness that runs Claude Code, Codex and ten more terminal agents as one office of clones on your machine
Listed on EffectHub ·
Pricing
- Pricing model
- Freemium
- Paid options from
- $20/mo
- Billing
- Monthly
The Classic office is free and open source. Pro is a one-time payment for a fixed term — $20 for 30 days, or $150 for 365 days at the launch price (down from $200, as low as $100 with purchasing-power pricing) — with no auto-renewal and no refunds. Teams is priced on a call. Model usage runs on your own agent subscriptions.
Use tool ↗About Munder Difflin
Munder Difflin is a free, MIT-licensed desktop app for macOS, Windows and Linux that runs twelve terminal coding agents — Claude Code, Codex, Gemini CLI, Copilot, Cursor, Grok, Antigravity, Qwen and others — as a team of clones in a pixel-art office. An orchestrator splits one instruction into tasks, hands them to the right clone, and the clones share a task board, per-agent inboxes and a memory that persists between sessions, with a circuit breaker against runaway spend. The office itself is a simulation that uses no tokens; the work runs on the agent subscriptions you already pay for, and code and keys stay on your machine. Pro adds a sidebar workspace and the Stapler, a floating window for local dictation and meeting transcription. It is maintained by one developer in India.
- API
- Not confirmed
- Last verified
- Oct 15, 2026
Verified sources
- Free, open-source multi-agent harness for macOS, Windows and Linux driving twelve terminal agents on existing subscriptions; Pro $150 for 365 days (launch offer, from $200) or $20 for 30 days; Teams by call (15 October 2026)munderdiffl.in ↗
- Terms: maintained by Chaitanya Giri, an individual developer based in India, no company; Pro is a fixed-term one-time payment that does not renew; all payments final; Indian law (15 October 2026)munderdiffl.in ↗
- Source code and MIT licence published on GitHubgithub.com ↗
Is Munder Difflin legit?
We don’t label tools safe or unsafe. Below are the records we checked ourselves, each with the date we read it.
- Domain registered
- May 31, 2026Registry record (RDAP), registrar GoDaddy, looked up Sep 6, 2026
- TLS certificate
- Issued by Let's Encrypt, valid until Dec 29, 2026Seen in our own connection to the site on Oct 15, 2026
- Last checked
- Oct 15, 2026The site answered
- On the market since
- 2026The vendor's own material, read by us
- Operated by
- Chaitanya Giri, IndiaOur research, card verified Oct 15, 2026
Pros & cons of Munder Difflin
Munder Difflin is MIT-licensed and free at its core: the clones cost nothing beyond whatever Claude Code, Codex or Gemini plan you already pay for, and the orchestration, task board and memory are in the free app. Pro sells a different interface and local dictation rather than gating the multi-agent part, which is unusual for this category, but it is one person's project and all sales are final.
Pros
- Core harness is free, open-source, and MIT-licensed rather than a gated trial
- Runs locally on macOS, Windows and Linux, so code and keys stay on the machine
- Coordinates twelve established coding-agent CLIs instead of building a new one
- Pro is a fixed-term payment that never auto-renews
Cons
- Built and maintained by one developer with no company behind it, a real continuity risk
- Paid licences are non-refundable
- Agents stop when your machine sleeps; remote control and hosted sandboxes are not out yet
Best for
- Developers already paying for Claude Code or Codex who want their agents coordinated rather than run one at a time
- Solo builders juggling several projects, each in its own floor of agents
- People who want local meeting transcription handed straight to their coding agents
Not for
- Anyone without an existing coding-agent subscription — the harness itself doesn't include model access
- Teams needing hosted agents that keep working with the laptop closed (sandboxes are still listed as coming)
Watch out: Running several clones at once multiplies usage against your Claude or Codex plan's hourly limits, so a busy office can exhaust them quickly.
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