BoltvsOnlook
Generated from the two spec rows. Green marks the better value where a spec has a clear direction. Everything else is just different.
Bolt
StackBlitz · Web app builder
#159MCP
Panel
4.91 spec wins
- Reliability
- 4.5
- Usefulness
- 5.3
- Cost
- 4.3
- Longevity
- 5.5
“Open source until December 2024, metered ever since, and the meter mostly counts uploading your own files to the model.”
Onlook
Onlook · Web app builder
#39OSS
Panel
7.03 spec wins
- Reliability
- 6.7
- Usefulness
- 6.7
- Cost
- 8.0
- Longevity
- 6.5
“Lets designers edit real DOM nodes until they realize it only targets Next.js and Tailwind.”
Spec by spec
| Spec | Bolt | Onlook |
|---|---|---|
| Architecture | ||
| Category | Web app builder | Web app builder |
| Runs | sandbox, cloud | cloud, sandbox, local |
| Platforms | web | web, macos, linux, windows |
| Context window | not documented | not documented |
| Protocols | ||
| MCP client | Yes | No |
| MCP server | No | No |
| Capabilities | ||
| Runs terminal commands | Yes | Yes |
| Multi-file edits | Yes | Yes |
| Git operations | Yes | Yes |
| Browser control | NoNo browser-driving or app-testing agent is documented; Standard and Max differ only in how much the agent reasons per step (https://support.bolt.new/building/using-bolt/agents.md). | Yes |
| Sandboxed execution | Yes"Bolt relies on WebContainers, a browser-based runtime from StackBlitz that enables a full-stack development environment in the browser" — an in-browser VM, not a container you manage. | Yes |
| Multi-agent orchestration | No | No |
| Headless / CI mode | No | No |
| Models | ||
| Backbone | Claude | OpenRouter |
| Bring your own model | No"Bolt handles model selection behind the scenes" — no model or provider picker, custom endpoint or key. | No |
| Local models | No | No |
| Cost | ||
| Pricing model | subscription | free |
| Starts at | $25/mo | n/a |
| Free tier | Yes | Yes |
| Bring your own key | No | No |
| Openness | ||
| Open source | No | Yes |
| License | proprietary | Apache-2.0 |
| GitHub stars | 16,569 | 26,849 |
Which one would each critic pick
| Critic | Bolt | Onlook | Pick |
|---|---|---|---|
| El Juez | — | — | not enough reviews |
| El Amigo | 5.5 | 7.3 | Onlook — Pick Onlook if you want a visual editor that writes directly back to your Next.js and Tailwind codebase. |
| El Crítico | 4.8 | 7.8 | Onlook — Onlook bridges React code and visual DOM styling, but it binds your workflow strictly to Next.js and TailwindCSS. |
| El Profesor | 4.8 | 6.0 | Onlook — A specialized visual editor for teams standardizing UI development on Next.js and TailwindCSS. |
| La Inversora | 6.0 | 7.0 | Onlook — Treat Onlook as an open-source visual prototyping experiment while monitoring how the team monetizes its upcoming hosted tier. |
| La Jefa | 5.0 | 6.5 | Onlook — Open-source visual editor for Next.js, but lacks the audit logs, SSO, and centralized controls required for team adoption. Not yet. |
| El Hacker | 3.5 | 7.3 | Onlook — A visual Next.js editor with real Apache-2.0 code, held back by closed model plumbing and zero MCP support. |
Picks are derived from each critic's own scores. Humans vote on matchups on the duels page.