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@korablev • 10,907 subscribers

@21st_dev (YC W26)

Shorts

What happened with The Browser Company? They were so careful about details, and now it's just junk. This bug has lasted for months.

What happened with The Browser Company? They were so careful about details, and now it's just junk. This bug has lasted for months.

35,068 views

21st Agents is now in Public Beta. The infra layer to ship Claude Code & Codex agents inside your product. In minutes. Comment for free credits to try 🧵

21st Agents is now in Public Beta. The infra layer to ship Claude Code & Codex agents inside your product. In minutes. Comment for free credits to try 🧵

84,086 views

Videos

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As a visual person, I hate working in the CLI. But after using Claude Code a few times, it’s impossible to go back. The problem isn’t Claude. It’s the interface around it. So we built the best Claude Code client we could imagine. Runs fully in the browser. Parallel branches and projects. Live previews for every change. A calm, clean UI. Free to use with your own Claude keys. Reply if you want early access 👀

As a visual person, I hate working in the CLI. But after using Claude Code a few times, it’s impossible to go back. The problem isn’t Claude. It’s the interface around it. So we built the best Claude Code client we could imagine. Runs fully in the browser. Parallel branches and projects. Live previews for every change. A calm, clean UI. Free to use with your own Claude keys. Reply if you want early access 👀

251,410 views • 8 months ago

The best products of the 21st century have yet to be shipped. With 21st, any idea can find its aesthetic and design, even if you aren’t a designer. Meet the first vibe crafting tool for everyone…. So every product can have soul.

The best products of the 21st century have yet to be shipped. With 21st, any idea can find its aesthetic and design, even if you aren’t a designer. Meet the first vibe crafting tool for everyone…. So every product can have soul.

224,871 views • 10 months ago

Introducing 1Code Open source Cursor-like UI for Claude Code. 🧵

Introducing 1Code Open source Cursor-like UI for Claude Code. 🧵

135,868 views • 7 months ago

I had 14 tabs open just to keep up with AI. arXiv, Papers With Code, every leaderboard, HuggingFace, half a dozen RL-env hubs... So I built one screen for all of it. The Bloomberg terminal for AI research. It's called Sophon 🧵

I had 14 tabs open just to keep up with AI. arXiv, Papers With Code, every leaderboard, HuggingFace, half a dozen RL-env hubs... So I built one screen for all of it. The Bloomberg terminal for AI research. It's called Sophon 🧵

48,025 views • 2 months ago

Introducing 21st Agent Elements Diffed edits. Plan approvals. Clarifying questions. Sub-agents. Tool cards. The pieces every "agent UI" lib skips. 25 shadcn /ui components built for the new generation of agents that use your computer. Open-source. Link in thread 🧵

Introducing 21st Agent Elements Diffed edits. Plan approvals. Clarifying questions. Sub-agents. Tool cards. The pieces every "agent UI" lib skips. 25 shadcn /ui components built for the new generation of agents that use your computer. Open-source. Link in thread 🧵

44,036 views • 4 months ago

What if your Claude Code client worked beautifully on mobile? Same calm UI. Multiple branches. Live previews. And the ability to keep working without your laptop. Free to use with your own Claude subscription Reply if you want early access

What if your Claude Code client worked beautifully on mobile? Same calm UI. Multiple branches. Live previews. And the ability to keep working without your laptop. Free to use with your own Claude subscription Reply if you want early access

50,041 views • 8 months ago

Introducing Agents by 21st (alpha) We love Claude Code. We hate living in the CLI. So we built a calm, visual client for real code work: • works with your own Claude subscription • local work with worktrees + multiple sessions • multiple terminals per worktree • diff viewer, commits, PR control Built for people who think visually.

Introducing Agents by 21st (alpha) We love Claude Code. We hate living in the CLI. So we built a calm, visual client for real code work: • works with your own Claude subscription • local work with worktrees + multiple sessions • multiple terminals per worktree • diff viewer, commits, PR control Built for people who think visually.

29,238 views • 7 months ago

We're launching 21st Agents in beta. It's the infrastructure layer for Claude Agent SDK - runtime, sandboxing, billing, UI, streaming - so you can ship agents to production without building infra from scratch. Think Vercel for Claude Agent SDK. Full walkthrough in the video below 👇

We're launching 21st Agents in beta. It's the infrastructure layer for Claude Agent SDK - runtime, sandboxing, billing, UI, streaming - so you can ship agents to production without building infra from scratch. Think Vercel for Claude Agent SDK. Full walkthrough in the video below 👇

22,589 views • 5 months ago

21st lets you work on real frontend code in the browser you can iterate on multiple branches and projects in parallel, with live previews it’s my favorite tool for frontend (and yeah, i’m building it using itself) p.s. comment if you want free tokens 👀

21st lets you work on real frontend code in the browser you can iterate on multiple branches and projects in parallel, with live previews it’s my favorite tool for frontend (and yeah, i’m building it using itself) p.s. comment if you want free tokens 👀

13,626 views • 8 months ago

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