Comparison · AI coding environment in the browser

builder77 vs Bolt

Bolt (bolt.new by StackBlitz) runs a full JavaScript development environment in your browser and lets AI write code in many frameworks. builder77 focuses on getting non-developers to a published app quickly, with the backend, hosting and mobile path already in place.

Try builder77 free See the comparison

builder77 in one sentence

Best if you want to describe an app and publish it with a ready backend — no frameworks, terminals or deployment settings to think about.

Bolt in one sentence

Best if you're comfortable with code and want AI help across many JavaScript frameworks inside a real dev environment.

Side by side

Features, trade-offs included

Based on public information as of October 2026. Competitor prices change often, so we link to their pricing instead of quoting it.

	builder77	Bolt
How you build	Chat, click-to-edit in the preview, code editor	Chat plus an in-browser IDE with terminal
Frameworks	One opinionated stack, chosen for you	Many JavaScript frameworks (React, Vue, Svelte, Astro and more)
Database & auth	Built in: database, user auth, file storage, email and AI — nothing to connect	Via built-in or connected services depending on setup
Hosting	Included on paid plans (yourapp.builder77.com + custom domains with SSL from Starter)	One-click deploys to hosting providers
Mobile apps	Installable PWA for published apps + Flutter source code export	React Native apps via Expo
Languages	29 interface languages; the AI writes your app in the language you write in	Editor interface in English; prompts in other languages work
Pricing model	Free to build, preview and launch one app for 7 days; paid plans from $12/mo ($10/mo billed yearly)	Free tier plus token-based paid plans — see bolt.new

builder77 details from our pricing page. Free plan: build, share 7-day previews and launch one app free for 7 days; permanent hosting starts on Starter.

Which one fits?

Pick the tool that fits how you work

Choose builder77 when

You're not a developer and don't want to manage frameworks or deployments
You want the database, sign-in, email and AI already working in every app
You want a Flutter project for a native mobile build
You prefer a predictable per-message credit instead of token budgets for building

Choose Bolt when

You want to choose your framework and run npm packages and a terminal
You're building with React Native/Expo specifically
You want an AI pair programmer more than an app builder

The fairest test: build the same small app in both. builder77 is free to try without signing up.

FAQ

builder77 vs Bolt, answered

More comparisons: Lovable, Replit, v0, Bubble, FlutterFlow and base44.

For people who want a finished, published app rather than a development environment, yes. Bolt gives developers more framework freedom; builder77 gives everyone a ready backend, hosting and a mobile path.

Not on builder77 — everything works by describing and clicking, with a code editor if you want it. Bolt is easiest if you're comfortable reading code and terminal output.

builder77 mobile apps install as PWAs once published and export to a Flutter project. Bolt supports React Native through Expo. Both paths can reach the app stores with your own developer accounts.

See the difference for yourself

Describe your app and get a working first version in about a minute. No credit card required.

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Disclaimer
Bolt information is based on public sources as of October 2026; features and plans may have changed since. Bolt is a trademark of its respective owner; builder77 is not affiliated with or endorsed by Bolt. Spotted an error? Tell us through the contact form and we'll correct it.