Bolt
#4 Website Buildersby StackBlitz · Best in-browser full-stack builder
Bolt (bolt.new by StackBlitz) builds, runs, and edits full-stack web apps entirely in the browser using WebContainers, so it executes real code and npm packages live. The free plan includes 300K tokens per day (1M per month) with private projects and hosting; Pro starts at $25/month (around 10M tokens, with unused tokens rolling over one month). Token use can spike during heavy iteration.
Pricing
$25/mo
Free 300K tokens/day; Pro $25/mo (~10M tokens, one-month rollover); Teams $30/member/mo; token-based
Free tier: Yes · Open source: No
Strengths
- + True full-stack in-browser — runs real code and npm live
- + Token rollover and private projects on entry tiers
- + Built-in hosting and database integrations
Limitations
- − Token consumption can spike on iterative builds
- − Complex apps may still need developer cleanup
Best for
How Bolt works
Bolt (bolt.new by StackBlitz) builds, runs, and edits full-stack web apps entirely in the browser using WebContainers — StackBlitz's technology that runs Node.js and npm packages directly in the browser tab. That means Bolt executes real code live, not a simulated preview: you watch an actual app run, install packages, and hit real errors, all without any local setup.
That true in-browser full-stack capability is its differentiator versus front-end-first tools. The free plan includes 300K tokens per day (1M per month) with private projects and hosting; Pro starts at $25/month for roughly 10M tokens, with unused tokens rolling over one month, and Teams is $30 per member. Built-in hosting and database integrations round out the loop from prompt to deployed app.
The trade-offs are token-related and architectural: token consumption can spike during heavy iteration, and complex apps may still need a developer to clean up. For technical founders prototyping full-stack apps, developers shipping web apps quickly, and hackathon-style experiments, Bolt's run-real-code-in-the-browser model is a strong fit.
What people use Bolt for
Full-stack prototyping in-browser
Build and run real full-stack apps with live code and npm packages, no local environment to configure.
Fast web app shipping
Go from prompt to a running, hosted app for developers who want speed without leaving the browser.
Hackathons and experiments
Spin up working apps rapidly for time-boxed builds, with token rollover softening heavy iteration.
Bolt pricing in context
At $25/mo, Bolt starts 67% above the $15/month median entry price for website builders agents in this index. See the full AI agent pricing data for category medians and the verified pricing-change log.
Alternatives to Bolt
Other website builders agents in the index, ranked.
- 1.LovableBest AI website & app builder overall$25/mo
- 2.Base44Best AI builder for functional business apps$16/mo
- 3.v0 by VercelBest for polished front-end & UI generation$30/user/mo
- 5.FramerBest design quality for marketing sites$10/mo
- 6.Hostinger HorizonsBest value all-in-one (build + hosting)$7.99/mo
- 7.DurableBest for local & service businesses$15/mo
Bolt FAQ
Is Bolt free?
Bolt's free plan includes 300K tokens per day (1M per month) with private projects and hosting. Pro starts at $25/month (~10M tokens, with one-month rollover) and Teams is $30 per member per month.
What makes Bolt different from other builders?
Bolt runs real full-stack code live in the browser via WebContainers, executing actual Node.js and npm packages rather than showing a simulated preview, so what you see is a genuinely running app.
Does Bolt host the apps it builds?
Yes. Bolt includes built-in hosting and database integrations, so the full-stack apps you build can be deployed from the same browser-based environment.
What are Bolt's limitations?
Token consumption can spike during heavy iteration, and complex apps may still need a developer to clean up the generated code before production.