OnlookvsReplit Agent
Generated from the two spec rows. Green marks the better value where a spec has a clear direction. Everything else is just different.
Onlook
Onlook · Web app builder
#39OSS
Panel
7.01 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.”
Replit Agent
Replit · Web app builder
#132MCP
Panel
5.64 spec wins
- Reliability
- 5.3
- Usefulness
- 6.0
- Cost
- 4.7
- Longevity
- 6.5
“Bills per checkpoint with effort-based pricing, so the harder the bug, the more you pay to watch it try.”
Spec by spec
| Spec | Onlook | Replit Agent |
|---|---|---|
| Architecture | ||
| Category | Web app builder | Web app builder |
| Runs | cloud, sandbox, local | cloud |
| Platforms | web, macos, linux, windows | web |
| Context window | not documented | not documented |
| Protocols | ||
| MCP client | No | Yes |
| MCP server | No | Yes |
| Capabilities | ||
| Runs terminal commands | Yes | Yes |
| Multi-file edits | Yes | Yes |
| Git operations | Yes | Yes |
| Browser control | Yes | Yes |
| Sandboxed execution | Yes | YesEvery app runs on Replit's managed cloud compute, with Reserved VM publishing inside a dedicated single-tenant GCP project fully isolated from other customers' apps (https://docs.replit.com/learn/projects-and-artifacts/replit-deployments); the isolation is real but it is Replit's to configure, not yours. |
| Multi-agent orchestration | No | Yes |
| Headless / CI mode | No | NoNo CLI, REST API or CI runner is documented; the hosted MCP server is the only programmatic way to drive Agent. |
| Models | ||
| Backbone | OpenRouter | Claude, GPT, Gemini |
| Bring your own model | No | YesCore and Pro builders pick the primary model themselves (Anthropic, OpenAI or Kimi) in Agent Mode's Power and Max modes, but only from Replit's hosted list — no custom endpoint, gateway or key. |
| Local models | No | No |
| Cost | ||
| Pricing model | free | mixed |
| Starts at | n/a | $20/mo |
| Free tier | Yes | Yes |
| Bring your own key | No | No |
| Openness | ||
| Open source | Yes | No |
| License | Apache-2.0 | proprietary |
| GitHub stars | 26,849 | n/a |
Which one would each critic pick
| Critic | Onlook | Replit Agent | Pick |
|---|---|---|---|
| El Juez | — | — | not enough reviews |
| El Amigo | 7.3 | 6.3 | Onlook — Pick Onlook if you want a visual editor that writes directly back to your Next.js and Tailwind codebase. |
| El Crítico | 7.8 | 5.5 | Onlook — Onlook bridges React code and visual DOM styling, but it binds your workflow strictly to Next.js and TailwindCSS. |
| El Profesor | 6.0 | 5.8 | Onlook — A specialized visual editor for teams standardizing UI development on Next.js and TailwindCSS. |
| La Inversora | 7.0 | 7.5 | Replit Agent — Replit has consumer distribution and a hosting business that turns every generated app into a switching cost, and its shift to effort-based pricing is the tell that margins are being managed. |
| La Jefa | 6.5 | 5.3 | 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 | 7.3 | 3.5 | 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.