Arc alternatives

Tools that do what Arc does, found by what they say they do rather than by shelf. Among the equally alike, the most used come first. Each line says how it differs from Arc.

Read 2026-10-21 · Arc itself: Free plan · From $129/yr

With a free plan or free to use: Shadcn Blocks, HextaUI Pro, Shadcn UI Blocks, 21st, GitHub, websim.ai, Cursor.

10 alternativesUnlike Arc

#1
Shadcn Blocks Developer tools
Copy-in React components for shadcn ui projects, plus full-stack Vercel AI SDK agent templates shipped as editable source code.
Open sourceMore widely used
805
Active
#2
HextaUI Pro Developer tools
Ships React components and chat blocks as source files you copy into a shadcn ui project with the shadcn CLI.
Open sourceMore widely used
9
Active
From $49 once
#3
Shadcn UI Blocks Developer tools
Provides 3,900 shadcn/ui React component blocks with visual editor, templates, and team workspace.
More widely used
203
Active
From $15/user/mo
#4
Microsoft Developer tools
Sells Windows, Microsoft 365 and Azure cloud services, plus Surface devices and Xbox consoles.
More widely used
135M
Active
1975
#5
Pi Coding Agent Developer tools
Minimal agent harness for building custom coding workflows with extensible skills and multi-model support.
More widely used
208k
Active
#6
21st Developer tools MCP · sign-in
Browse and copy 12,000 React components, templates, and themes as AI-ready prompts into your project.
More widely used
13.1k
From $6/mo
#7
GitHub Developer tools
Hosts Git repositories with pull requests, code review, issue tracking and Actions pipelines for building, testing and deploying code.
Also: Workflow automation, Code generationMore widely used
42M
From $4/user/mo
2007
#8
Progress Telerik Developer tools
Sells UI component libraries, reporting tools and testing tools for building .NET and JavaScript web, desktop and mobile applications.
More widely used
123k
Active
From $1,149/user/yr
2002
#9
websim.ai Developer tools
Create and share browser-based games and interactive applications without coding.
More widely used
143k
Active
Free
#10
Cursor Developer tools
AI coding agent that writes code, runs tasks, and reviews pull requests autonomously or with human direction.
More widely used
314k
Active
From $8/mo
2023

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How this list is made: the words Arc is described with (what it does, for whom, what it is used for) are matched against every tool in the Atlas. A tool on the same shelf, or doing the same kind of work, counts for a little more. Nothing here is paid for.