AI · alternatives · 2026
24 alternatives to Zerg Client
The coding agent harness that drives its own terminal panes
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 8 we have checked on their own sites, 8 of them free or with a free tier.
- 1
devpitfree▲117A native control room for your Claude Code agents
Oct 2026 · devpit.app · its alternatives →
- 2
Harness by Autonomousfree tier, from $149/mo▲295Every coding agent, every machine, one command center.
29d ago · autonomous.ai · its alternatives →
- 3
axel.md▲76Agent orchestration in the terminal, designed for Rex
10d ago · axel.md · its alternatives →
- 4

For almost two years, we've been developing Charlie, a coding agent that is autonomous, cloud-based, and focused primarily on TypeScript development. During that time, the explosion in growth and development of LLMs and agents has surpassed even our initially very bullish prognosis. When we started Charlie, we were one of the only teams we knew fully relying on agents to build all of our code. We all know how that has gone — the world has caught up, but working with agents hasn't been all kittens and rainbows, especially for fast moving teams. The one thing we've noticed over the last 3…
Jun 2026 · charlielabs.ai · its alternatives →
- 5
Runtimefree tier, from $99/mo▲299Sandboxed coding agents for everyone on your team
May 2026 · runtm.com · its alternatives →
- 6
OpenVibe▲68A canvas of real terminals for your AI coding agents
4d ago · openvibe.win · its alternatives →
- 7
nana▲86One terminal for every coding agent, on Windows
10d ago · nana.areshk.dev · its alternatives →
- 8
M9Rfree▲56Multiplayer space for your AI coding agents and teams
Sep 2026 · app.m9r.workers.dev · its alternatives →
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A lightweight, single-binary coding agent harness written in Go. Anthropic, OpenAI, Kimi, DeepSeek, Google Gemini, Ollama, managed llama.cpp models, five built-in tools, three run modes, extensions in any language, and a built-in Telegram bridge.
May 2026 · zot.sh · its alternatives →
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- 13
ESP-Mosaico▲109A modular development board built for agents
Sep 2026 · mosaico.ai · its alternatives →
- 14
Zest▲70Hold ⌥Space, flick, and an AI agent does the dev chore
19d ago · zest.dashovia.app · its alternatives →
- 15
Grovefree tier, from $5/mo▲101One terminal for you and your AI agent
Sep 2026 · grove.publishstudio.one · its alternatives →
- 16
Reika▲72A coding agent CLI designed around small local models first
Oct 2026 · reikacode.com · its alternatives →
- 17
Campfirefree▲84The shared workspace for humans and coding agents
Sep 2026 · boringinfra.company · its alternatives →
- 18
OpenVisio▲67One workspace for your team and its AI coding agents
8d ago · openvisio.io · its alternatives →
- 19
Harness Managerfree▲83Your AI coding stack manager, all in one place
Sep 2026 · harnessmanager.devmesh.xyz · its alternatives →
- 20
Firetower▲80Run coding agents on your own servers, from anywhere
Sep 2026 · usefiretower.com · its alternatives →
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A terminal-first development environment for agentic coding. Use Claude Code, Codex, Aider, and other CLI agents in a focused workspace.
May 2026 · zerminal.dev · its alternatives →
- 23
Palomino▲55Ultrafast workspace for agents to run in parallel
Oct 2026 · trypalomino.com · its alternatives →
- 24
Code▲20Hey HN, Today we're launching Code, a community-driven, open-source coding agent for your terminal. It's a fork of OpenAI's codex with a focus on developer ergonomics and local control. Key features: - Browser integration – attach to your Chrome via CDP or use a built-in headless browser. You can browse pages, run the CLI in a browser session, and even take screenshots from the terminal. - Multi-agent commands – /plan, /solve and /code orchestrate multiple models (ChatGPT, Claude, Gemini) to propose and implement solutions, with consensus or race options. - Diff viewer – see…
2025 · github.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →