Bolt.new vs Replit Agent (2026)

Bolt.new

by StackBlitz

Replit Agent

by Replit

Pros

• ✓Builds, runs, tests and fixes full-stack web apps in the browser from a chat, with no local environment to set up.
• ✓Design system agents bring a team's own tokens, components and repositories into Bolt, and admins can set a default design system for every app.
• ✓Connectors run on MCP, with Notion, Linear, GitHub, Miro, Sentry, Context7, Granola and Jira built in and any remote MCP server addable.
• ✓Hosting, databases, user management, authentication and custom domains are built in, and Bolt holds SOC 2 Type 2.

Limitations

• –Apps run in a browser WebContainer, so work that needs native dependencies, GPU access or long-running background jobs has to move to other hosting.
• –Usage is metered in tokens that vary with the size of each build, with daily limits on Free and a monthly allowance on Pro.
• –From October 7, 2026, content on individual plans outside the EEA, UK and Switzerland can be used for model training and licensed datasets unless the user opts out.
• –SSO, audit logs and compliance support are on the quote-based Enterprise plan.

Pros

• ✓Builds, runs and publishes in one place: Agent plans and writes the app, provisions a managed database with separate development and production copies, handles auth and secrets, and publishes to Replit hosting with DDoS protection and a web application firewall.
• ✓Security across the whole lifecycle: Package Firewall blocks malicious packages at install, Security Agent combines model-based review with Semgrep and HoundDog.ai before publishing, and Auto-Protect watches published apps for new CVEs and prepares Agent patches.
• ✓Wide reach for an app builder: more than 70 read-and-write connectors, MCP support in both directions, a free Starter plan, Free Mode on paid plans and up to 10 parallel background tasks on Pro.

Limitations

• –Apps published on Starter, Core and Pro are hosted by Replit, and self-hosting a Replit-built app or running Replit in your own cloud is limited to Enterprise preview and early access.
• –Paid Agent work is billed per checkpoint by request effort, so heavy builds in Power or Max can use credits quickly, and the free Starter plan caps Agent use daily, allows one published app for 30 days and excludes connectors and Plan mode.
• –Core runs one background task at a time and includes up to 5 builders, so teams that want parallel work or more seats need Pro or Enterprise, and Pro credit tiers above the entry point run up to $2,000 per month billed annually.