Show HN: 1Code – Open-source Cursor-like UI for Claude Code (github.com)

75 points by Bunas ↗ HN
Hi, we're Sergey and Serafim. We've been building dev tools at 21st.dev and recently open-sourced 1Code (https://1code.dev), a local UI for Claude Code.

Here's a video of the product: https://www.youtube.com/watch?v=Sgk9Z-nAjC0

Claude Code has been our go-to for 4 months. When Opus 4.5 dropped, parallel agents stopped needing so much babysitting. We started trusting it with more: building features end to end, adding tests, refactors. Stuff you'd normally hand off to a developer. We started running 3-4 at once. Then the CLI became annoying: too many terminals, hard to track what's where, diffs scattered everywhere.

So we built 1Code.dev, 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.

What’s next: Bug bot for identifying issues based on your changes; QA Agent, that checks that new features don't break anything; Adding OpenCode, Codex, other models and coding agents. API for starting Claude Codes in remote sandboxes.

Try it out! We're open-source, so you can just bun build it. If you want something hosted, Pro ($20/mo) gives you web with live browser previews hosted on remote sandboxes. We’re also working on API access for running Claude Code sessions programmatically.

We'd love to hear your feedback!

29 comments

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(comment deleted)
The idea is nice, but the pricing is odd. 20$/month (the cost of Claude Pro) just for a web interface and a sandbox seems very expensive.

I hope the business model works out for you, but I doubt the price is justified.

Also a better link is: https://1code.dev/

The repo doesn't have screenshots, so you might loose traffic just because of that.

Nevertheless, I'll try it out - looks nice!

Thanks for the feedback. We’ve added a short demo video to the repo to clarify the UX and direction. Our focus is earning trust by shipping.
I didn't quite understand what "Unlimited web & macOS apps access" means in the paid tier. Could you elaborate?
"Claude Code, but usable" might not be the best tagline. I find Claude Code extremely usable. In fact, it's the simplest product that "just works" I've ever used.
With Claude Code now available in the Claude desktop app, what are the key differentiators?

I’m all for new, better tools and will probably test this out over the weekend to see if the interface is more usable than Claude’s. Just curious if there’s anything you’re particularly excited about compared to the official release.

We started building this after trying existing tools like Claude Code desktop. We realized we couldn't fully transition to them — my co-founder went back to Cursor and burned tons of money on tokens.

So we decided to build a tool that WE would actually use, and once we succeeded with that, we open-sourced it. Since then we've received a lot of feedback on where to take this product - some use cases Anthropic will probably never do, like integrating Codex or adding other z.ai GLM subscription.

We're just trying to ship something we use ourselves, and maybe it could be useful to others, and see where it goes.

>Do I need a Claude subscription?

>Yes, 1Code works with your Claude Pro or Max subscription. Sign in with your Anthropic account and use your existing subscription. We charge separately for the 1Code app.

Is this even after the recent events; Anthropic banning 3rd-party access to the Claude Pro/Max subscriptions and only allowing API access? Tool is nice but most certainly not* 800$ nice.

*Based on heavy Claude Max users here, the people that will be running 3-4 agents, saying API would've cost them $1k+.

I’m happy to see another project monetizing built executables. I feel like it’s not a popular option to many, but to me I think it’s the best way to getting financial support from enterprises that would be more than happy to leech.
Thanks! for us monetization is more about signal - people who spend $20 are the ones who really want this to work, and we want to build for them. We have a private Discord with our Pro users where we discuss what to build next, share feedback and tips and tricks.
(comment deleted)
fyi: it does not build for me from the source code.

Rebuild Failed

An unhandled error occurred inside electron-rebuild node-gyp failed to rebuild '[...]/1code/node_modules/node-pty'

Error: node-gyp failed to rebuild '[...]/1code/node_modules/node-pty' at ChildProcess.<anonymous> ([...]/1code/node_modules/@electron/rebuild/lib/module-type/node-gyp/node-gyp.js:121:24) at ChildProcess.emit (node:events:508:28) at ChildProcess._handle.onexit (node:internal/child_process:294:12) node:child_process:1000 throw err; ^

The pricing is ridiculous. It doesn't include the Claude subscription so $20/m is way out of league for a UI.

And a "max" subscription for $200/m??? It makes no sense. It's not because LLM making companies have plans at $200 that any company should make a $200/m plan.

I hate to be that guy, but if anyone got excited about an interface where they could work with Claude, I'd say stick with the cli.

If you really want a 'different' UI thats unlike VSCode or Cursor already, I'd genuinely recommend checking out almost any other tool that pairs with CC.

> Mom I want 1Code

> Stop crying son, we have 1Code at home

> Shows tmux

Could you fix your video to not zoom in and out constantly like that? It's pretty hard to tell what's going on when it zooms right in every time you click something, and it's so fast it actually gave me a bit of motion sickness.
i would 100% pay for non-electron/non-vscode ui (sublime text? anyone?)

nothing specifically against vscode/electron/atom. i did use atom 10 years ago, then started sublime text 2, since then, it has been really hard to beat sublime text. the speed and rendering of sublime is much better.

i also have been using zed, which can be considered cloud-code ui too in certain terms, zed is quite more resource-intensive than the sublime and feels higher latency. (possibly because I use frosty-transparent theme...)

You shouldn’t start filenames or identifiers with digits.
Okay, so I want to like it and I think there is potential here.

I may be missing something in my setup, but I find these things happening in all Claude wrappers I have tried.

1. After a long stint of planning or back and forth exchange, I have to scroll to find the bottom of the conversation. Same with Claude itself.

2. I don’t want tabs as much as I want split window’s that I can label and highlight.

3. The more calm it is, I feel like I’m going to miss something that it’s fucking up. Sometimes in normal CC, I will look over and it’s making a large assumption and nuking a change we just made. I would love to control the verbosity or at least be able to peak behind the curtain at certain points.

4. I like the click flow for the planning Q&A but it wasn’t clear if I could add my own answer like I can in CC.

Other than these, I like it and want to use it more so than my current daily driver CLIManager. (Which has the overlap with points 1 and 2)

Nice work overall!

Thank you for the detailed feedback! Really appreciate you taking the time to share these points.

On point 4 (custom answers in Q&A): You're right, this is missing! I'll add the ability to write your own answers today or tomorrow.

On point 1 (scrolling): I pushed a batch of scroll fixes yesterday, but I see it's still not working optimally. We're actively working on improving this - it's definitely on our radar.

On point 2 (split windows): We're planning to add multi-window support soon - so you can have multiple chat windows open side by side, similar to how you'd work with multiple terminal windows, but with a nice UI. Stay tuned!

On point 3 (verbosity control): Great suggestion - sometimes you want to catch assumptions before they cause damage. Adding to our roadmap.

Thanks again, and glad you're finding it useful despite these rough edges!

Are there docs somewhere? I was looking to see if forgejo/gitlab/bitbucket are supported or if it's only github? Or if it even opens PRs on its own or not
I'm already using it I heard it from X

It's cool first time I see it I say NO WAY!!!

LOVE IT SO MUCH

Any plans for a mobile app? I'm trying to get into the flow of being able to work from my phone and delegate all coding to Claude, but the native Claude app isn't great.