I've built a Cursor alternative in browser. AI Coding Agent.
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HN · launched Nov 28, 2025 · 6 upvotes (top 73%) · 1 view
Niche: ai code editors · 86 launches, 5 in the last 7 days · Explore this niche →
Category and tags
- Horizontal
- Agent / copilot
- Developer
- AI-native
- Commercial product
Visit website ↗ Source listing ↗
More like this: all 86 launches in ai code editors →
Could you build this?
No Building an in-browser AI IDE agent like Cursor requires complex sandboxed runtime execution (WebContainers or remote firecracker VMs), multi-file indexing, LSP protocol management, and agentic diff application.
What it would actually take: The system requires an embedded Monaco editor coupled with WebAssembly-based Language Server Protocols, secure remote microVMs (e.g., Firecracker or WebContainers) for file execution, tree-sitter AST parsing, and a streaming multi-step agent orchestrator. The hardest parts are maintaining fast, synchronized code editing across remote/in-browser virtual filesystems and reliably streaming atomic AST-aware file diffs. It demands deep systems engineering, compiler/LSP knowledge, and distributed infrastructure expertise.
Discussion
No comments on this launch.
Competitors
Other products that read as similar to this one : 2003 launches clear the similarity bar, closest 8 shown.
Attention rank: #1484 of 2004 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 30 days after the earliest competitor.
- Open-Source AI Native IDE Cursor Alternative · hn · 2026-07-02 · 5 upvotes · similarity 0.67
- We built Cursor, but for data transformations (open source) · hn · 2026-03-27 · 5 upvotes · similarity 0.63
- LeoBlaz · ph · 2026-11-02 · 1 upvotes · similarity 0.60
- Recto: A desktop app where you can design with AI, edit with your mouse · hn · 2026-11-03 · 8 upvotes · similarity 0.59
- cursor-plugin · github · 2026-10-15 · 14 upvotes · similarity 0.59
- Building Cursor for Traders · hn · 2026-06-19 · 7 upvotes · similarity 0.58
- swarm-cursors · github · 2026-10-14 · 28 upvotes · similarity 0.58
- cursor-cpa-plugin · github · 2026-09-18 · 12 upvotes · similarity 0.58
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