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If you’re leaving 21st.dev because its free copying limits feel tight, these options may help with the next step: building or modifying UI in a coding workflow. But none is a direct replacement for a copy-ready component catalog. The picks below are coding tools, with listed starting prices from $8 to $20 for most options. Choose based on how you want to work with code, and keep a separate source for components if browsing and copying them is the main thing you need.
01Why people leave 21st.dev
Free copying feels too constrained
One Reddit thread reports a two-copy-per-day limit and an $8 monthly paywall. That can frustrate people who relied on browsing and copying components for free.
You need a coding agent instead
21st.dev is described as a component library, not a coding agent. If you want help building or changing UI in a coding workflow, consider a coding tool.
You want more places to source UI
A Reddit discussion asks for other places to find components and animations. The alternatives here are coding tools, so they won’t solve the need for a broader component catalog.
02The alternatives, ranked by fit
- Parallel agent workflows
CursorCursorSwitch to Cursor if the bigger need is working with AI inside coding projects, not browsing a component catalog. Its listing highlights parallel cloud agent workflows, review of AI-generated diffs, and access to OpenAI, Anthropic, and Gemini models. It starts at $8 with a free plan, according to the pricing page.
Trade-off: Pricing tiers and Grok restrictions may push cost-conscious developers elsewhere.
6.3/10from
$8/mofree plan - GitHub-based teams
GitHub CopilotGitHub CopilotGitHub Copilot fits developers already working in GitHub who want a coding assistant with multi-model flexibility. The listing names a free tier for solo developers and a $10 starting price. It’s a better fit when you want coding help in your existing workflow than when you want a library of copy-ready components.
Trade-off: It won’t replace 21st.dev’s component browsing; Reddit reports its value has eroded.
6.4/10from
$10/mofree plan - Long refactors
Claude CodeClaude CodeConsider Claude Code if your UI work is part of a larger refactor or migration. Its listing calls out multi-day refactors, Opus-tier users, and enterprise needs such as SSO and audit logs. The listed starting price is $17 with a free plan, but Reddit reports say the $20 plan runs out of Opus room quickly.
Trade-off: Opus usage can run out quickly on the $20 plan, per Reddit reports.
6.9/10from
$17/mofree plan - Persistent coding work
AmpAmpAmp is aimed at developers running long-lived coding agents and teams sharing threads, tools, and billing. Its listing also names self-hosted orbs as an option for individuals. The listed starting price is $20 with a free plan. It could fit ongoing coding work, but it is not a place to browse ready-made UI components.
Trade-off: Check hosted usage costs before committing.
7.4/10from
$20/mofree plan - Specs-first development
KiroKiroKiro is worth considering if you prefer to write specs before code rather than start by copying a component. Its listing also highlights review automation in CI/CD and parallel coding agents. It starts at $20 with a free plan, but the listing flags credit limits and mixed reports about the IDE.
Trade-off: Credit limits and mixed IDE reports are reasons to proceed cautiously.
5.8/10from
$20/mofree plan - Background coding agents
FactoryFactoryFactory targets teams automating recurring engineering work with background coding agents and enterprise controls. That makes it a more plausible fit for an engineering team changing how it handles code than for an individual seeking a component library. The listed starting price is $20, and the recommendation is to get a custom quote for enterprise value.
Trade-off: The listing gives no free plan; get a quote before comparing enterprise value.
6.8/10from
$20/mo
03Side by side
| Tool | Score | From | Free plan | Best for |
|---|---|---|---|---|
 21st.dev 21st.dev (current) | 7.0 | $6/mo | Yes | AI-assisted React and Tailwind developers |
| Cursor Cursor | 6.3 | $8/mo | Yes | Teams running parallel cloud agent workflows |
| GitHub Copilot GitHub Copilot | 6.4 | $10/mo | Yes | Teams already living inside GitHub |
| Claude Code Claude Code | 6.9 | $17/mo | Yes | Teams running multi-day refactors or migrations |
| Amp Amp | 7.4 | $20/mo | Yes | Developers running long-lived coding agents |
| Kiro Kiro | 5.8 | $20/mo | Yes | Developers who prefer specs before code |
| Factory Factory | 6.8 | $20/mo | No | Teams automating recurring engineering work |
Questions people ask
Are these direct replacements for 21st.dev?
No. The six options here are coding tools, while 21st.dev is described as a library for AI-assisted React and Tailwind developers to find components. They may help you build or modify UI, but the published information does not identify any of them as a copy-ready component catalog.
Which alternative should I choose to modify UI components?
Choose based on your coding workflow: Cursor lists parallel cloud agents and several model providers; Copilot is positioned for developers already using GitHub; Claude Code is aimed at multi-day refactors and migrations. These are not guarantees that a tool will fit your setup, and none replaces component browsing.
How much does 21st.dev cost now?
The published 21st.dev listing says it starts at $6 and has a free plan. One Reddit thread instead reports an $8 monthly paywall and a limit of two prompts or code copies per day. Those figures conflict, so check 21st.dev’s current pricing page before deciding.