ThreadlinesvsSynara
A Synara alternative with several agents in one thread
Synara began as a clone of T3 Code in March, and Threadlines grew from T3 Code too. Both are free and MIT-licensed. Synara adds hubs, where a coordinator runs workers on different agents, and a browser it shares with the agent. Threadlines lets two agents work in one thread at the same time.
| Feature | Threadlines | Synara |
|---|---|---|
| Price and license | Yes:Free, MIT | Yes:Free, MIT |
| Desktop | Yes:macOS, Windows, Linux | Yes:macOS, Windows, Linux |
| Phone | Yes:Home Screen web app with alerts | Yes:Web client, iPhone app in early access |
| Agents | Codex, Claude Code and seven more, plus community agents | Ten, including Devin and Factory Droid |
| Two agents in a thread at once | Yes:One can review the other's work | No:One at a time, by handoff |
| Your other computers | Yes:Yes, where the project is set up | Yes:Headless server, Remote in early access |
| Scheduled and event tasks | Yes:Schedules, GitHub issues, webhooks | Partly:Schedules |
| Agents in your terminal | Yes:Claude Code, Codex, Gemini CLI, Cursor, scripts | Yes:An MCP server for Codex or Claude Code |
| Git worktree per task | Yes:Per thread | Yes:Per task |
| Pull requests and CI | Yes:Beside the thread | Yes:Stacked PRs and auto-fix for CI |
| Built-in browser | Yes:Built in | Yes:Shared with the agent, computer use on macOS |
Pick Threadlines if
- You want two agents working in the same thread at once.
- You want phone alerts without signing in to anything.
Pick Synara if
- You want hubs, where a coordinator runs workers on different agents.
- You want the iOS Simulator, or computer use on macOS, beside the chat.
- You want a built-in code editor with a JavaScript debugger.
Questions
Is Synara a fork of T3 Code?
Its changelog says it started as a clone of T3 Code in March 2026. Threadlines also grew from T3 Code, and all three are MIT-licensed.
Can I use both?
Yes. They're separate apps, and both run the agent CLIs already on your computer with your own sign-ins.
We checked these facts about Synara on October 29, 2026, against Synara's README, website, handoffs, hubs, pull requests, browser verification, automations, external MCP, headless server, computer use, releases and changelog. Something out of date? Open an issue and we'll fix it.
See every agent Threadlines runs, or Threadlines vs Conductor, or Threadlines vs T3 Code, or Threadlines vs Codex app, or Threadlines vs Claude Code desktop, or Threadlines vs Orca, or Threadlines vs Paradev, or Threadlines vs Emdash, or Threadlines vs MonoCode.
Synara is made by Emanuele-web04. Threadlines is an independent open-source project and isn't affiliated with or endorsed by Emanuele-web04.