Launching today
1Code

1Code

Open source Cursor-like UI for Claude Code

240 followers

Whats 1Code? An app to run your Claude Code agents in parallel that works on Mac and Web. On Mac - run locally, with or without worktrees. On Web - run in remote sandboxes with live previews of your app, mobile included, so you can check on agents from anywhere. Running multiple Claude Codes in parallel dramatically sped up how we build features.
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Free Options
Launch Team
Anima - OnBrand Vibe Coding
Design-aware AI for modern product teams.
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What do you think? …

Serafim
Hi It’s Serafim and Sergey from 21st.dev, in the last 10 months we’ve built and launched 9 products, getting over 1 millions total users, $200k in revenue, and 10k GitHub stars. Motivation Claude Code has been our go-to for 4 months. When Opus 4.5 dropped, parallel agents stopped needing babysitting. You could finally run multiple and trust them. But the more agents we ran, the more the CLI felt like a limitation, not a feature. So we built 1Code.dev What’s next: Bug bot for identifying issues based on your changes; QA Agent, that check that new features dont break anything Adding OpenCode, Codex, other models and coding agents. API for starting Claude Codes in remote sandboxes. Debugging and spotting errors in AI Coding Era is more critical than ever Try it: We're open-source, so you can just bun build it. Paid tiers exist too - for us it’s gonna be highest signal that we're on the right track. Either way, we'd love to hear your feedback!
Austin Heaton

@serafimcloud congrats on the launch! Does it work with the regular Anthropic subscription as well, or only Claude Code?

Dima Sukharev

finally.. the TUI always jumps and jiggles, idk why anthropic cant fix it

Sergey Bunas

@sukharev made it for you!

Zeiki Yu

Huge congrats on the launch! Love the focused, parallel Claude Code workflow for serious shipping.

Sergey Bunas

@zeiki_yu thanks!

Sayyid Ali Aljufri⚡

NO WAY!!!

LOVE IT SO MUCH

Anna N

what a launch!!!

Sergey Bunas

@a_6 🚀🚀🚀

Van de Vouchy
Hey Serafim, that line about the CLI feeling like a limitation once you’re running multiple agents makes sense. Was there a specific moment where you were juggling several Claude Codes and thought okay this workflow is fighting against me?
Michael Vavilov

Who is your target audience?
Congrats on your launch!

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