Bolt (StackBlitz)
Bolt builds, runs and deploys full-stack web apps from a prompt, entirely in the browser: the agent generates the project, a real runtime executes it instantly, and the live preview updates as you talk. Packages install in seconds and the terminal is right there when you want it.
It spans the modern JavaScript framework landscape, wires databases and auth through integrations, and deploys from the same tab. The in-browser runtime is the distinctive piece: no cloud VM, no local setup, just code running where you prompt.
It is a prototyping and building surface with real code underneath; production hardening remains a developer's job.
- Cost
- Freemium (Free tier + paid plans)
- Ease
- Model
- Hosted service
- Checked
- August 2026
Prices, plans and model versions change fast: this is a mid-2026 snapshot; check the tool's official site for the latest.
Best for
- Full-stack web apps generated and running in the browser
- Live preview that updates as you iterate by prompt
- Modern JavaScript frameworks scaffolded from a description
- Database and auth wired through integrations
- Deploying the prototype from the same tab
Less suited to
Bolt outputs real code that still needs a developer before production: security, error handling and integration depth are not prompt-solved. Complex external integrations also lean on higher tiers and hand-finishing.
It is web-app shaped: work outside the JavaScript web world, or teams with established repos and pipelines, will fit better elsewhere.
Costs & data, in short
Free tier with monthly token allowance; paid plans raise limits. Complex builds consume tokens unpredictably, so watch the meter early.
Projects run in-browser on StackBlitz infrastructure; exported code is yours to take anywhere.
Plans
| Free | Free |
|---|---|
| Pro | from $25per monthbilled monthly |
| Teams | from $30per user, per monthbilled monthly |
| Enterprise | Price on applicationno list price published |
Prices as of August 2026. Prices and plans change regularly. Check with the provider before you buy.
In practice
How Bolt (StackBlitz) is used, area by area.
Jobs
Founders & entrepreneurs
Bolt suits the throwaway phase of finding what is worth building
Bolt suits the throwaway phase of finding what is worth building. It generates, installs and runs a real project inside the browser through WebContainers, Bolt Cloud bundles database, auth and hosting, and deployment happens from the same tab, so a founder can stand up a prototype, learn from it and discard it without ever configuring an environment. Token-based metering keeps light exploration cheap, which matches how validation actually runs: many small experiments, most abandoned. It rewards founders who want fast, flexible, code-visible experimentation. Shipping unhardened is the trap; weak input validation, session handling and secret management are common in generated output, so plan for a developer to harden anything customer-facing, and treat heavy iteration as a metered cost.
Example tasks
- Build a working MVP from a description in an afternoon
- Demo a running product to investors instead of slides
- Wire a database and auth without infrastructure work
- Iterate the product live during customer conversations
- Deploy each version behind a link for feedback
Limits
Shipping a real product unhardened. Output is not production-safe out of the box (weak input validation, session/auth handling and secret management are common), so plan for a developer to harden anything customer-facing before launch.
Compares
| vs | Pick Bolt (StackBlitz) when | Pick the other when |
|---|---|---|
| LovableFull comparison → | Bolt suits the throwaway phase of finding what is worth building: WebContainers run a real project in the browser, Bolt Cloud bundles database, auth and hosting, and token metering keeps many small abandoned experiments cheap | the validated demo must become the MVP without a rewrite, with the code syncing to GitHub for the engineers hired later |
| ReplitFull comparison → | Bolt is the more focused prompt-to-app builder, generating, installing and running the project in the browser and deploying from the same tab without an environment ever being configured | the platform should also host it, persist the database and connect payments under one bill, so the prototype grows into the product with no migration |
| Base44Full comparison → | Bolt suits the throwaway phase of finding what is worth building, running a real project inside the browser so a demo is a working product rather than slides | the want is software built for you rather than a codebase to write and own |
| GLM (Z.ai)Full comparison → | Bolt (StackBlitz) iterates the product live during customer conversations, which is what early validation looks like before a concept justifies a production stack | the prototyping happens at high volume and the bills should not be metered against it |
| CursorFull comparison → | Bolt (StackBlitz) puts each version behind a link for feedback, so what a founder tests on other people is the running product | you are still the hands-on builder and the codebase has weight |
| Claude CodeFull comparison → | Bolt (StackBlitz) does not produce production-safe output on its own: weak input validation, session handling and secret management are common in what it generates, so plan for a developer to harden anything customer-facing | you can read code, the repo is real, and founder time is the scarcest resource in the company |
| GitHub CopilotFull comparison → | Bolt (StackBlitz) turns a description into a working MVP in an afternoon, with no environment to configure before it runs | you are already shipping on GitHub and want low-friction AI in the workflow you have rather than a new editor |
| v0 by VercelFull comparison → | the metering is shaped for how validation actually goes, many small experiments of which most get abandoned, so exploring cheaply is the ordinary case rather than the careful one | you can own the stack, and the interface is what stands between you and shipping |
| Figma AI (Make / First Draft)Full comparison → | the prototype is built to be thrown away once it has answered its question, which is the whole phase rather than a shortcoming of it | the product needs to look designed, and the design budget is currently zero |
Product management
Bolt turns a prompt into a working full-stack prototype in the browser
Bolt turns a prompt into a working full-stack prototype in the browser. For a product manager, that changes the conversation: a feature idea or internal tool becomes something stakeholders can click the same day, with a real runtime executing it and the live preview updating as the conversation continues, no engineering time booked. It is code-first and flexible, which rewards a PM willing to steer the build and glance at the files, and its throwaway speed suits validating a concept before committing resources to it. The limits hold: output is a working argument, not a shippable artefact, so anything customer-facing needs a developer to harden security and error handling first, and demo data should stay synthetic until a security review exists.
Example tasks
- Turn a feature idea into a running prototype to test
- Validate a flow with a working app before engineering commits
- Iterate stakeholder feedback into the prototype by prompt
- Compare two approaches as running software
- Hand engineering a functioning reference, not a wireframe
Limits
Anything customer-facing or production-bound needs a developer to harden it first; treat Bolt output as a working argument, not a shippable artefact. Data used in demos should be synthetic until security review exists.
Compares
| vs | Pick Bolt (StackBlitz) when | Pick the other when |
|---|---|---|
| LovableFull comparison → | Bolt turns a feature idea into something stakeholders can click the same day, with a real runtime executing in the browser and the live preview updating as the conversation continues, which rewards a product manager willing to steer the build | the interface should be adjustable by clicking, being the most non-technical-friendly of the serious builders |
| Base44Full comparison → | Bolt output is a working argument rather than a shippable artefact: anything customer-facing needs a developer to harden it first | reaching a running product should need no technical literacy at all |
| v0 by VercelFull comparison → | two competing approaches can both be stood up as running software and argued over from use rather than from description, which is affordable precisely because neither is meant to survive | you want to hand engineering a real component, not a wireframe, and your stack is React |
| Figma AI (Make / First Draft)Full comparison → | the project's files are open to change directly, so an approach the prompt keeps getting slightly wrong can be corrected in place instead of described again | you want to test a flow or communicate an idea as something clickable, inside your team's Figma |
Tasks
Coding & software development
Bolt runs the whole development stack in a browser tab
Bolt runs the whole development stack in a browser tab. The agent scaffolds full-stack apps with the code fully visible, packages install in seconds, the terminal is there when you want it, and deployment leaves from the same tab, which makes it the zero-to-running specialist here. Token-based pricing rewards focused sessions over meandering ones. It suits developers who want a running full-stack start they will then edit as real code. Established repos, existing toolchains and non-web stacks are not its ground; the IDE agents serve working engineers in existing systems better, since its sweet spot is starting things, not maintaining them.
Example tasks
- Scaffold a full-stack app from a prompt with the runtime live
- Install packages and run terminal commands in the browser
- Wire Supabase-style integrations conversationally
- Fix errors iteratively with the agent watching the output
- Deploy from the same environment you built in
Limits
Existing codebases, established toolchains and non-web stacks are not its ground; IDE agents serve working engineers better. Its sweet spot is zero-to-running, not maintaining what runs.
Compares
| vs | Pick Bolt (StackBlitz) when | Pick the other when |
|---|---|---|
| ReplitFull comparison → | Bolt is the more focused prompt-to-app builder, scaffolding full-stack apps in a browser tab with the code fully visible and wider framework choice | the build should live on in a broader workspace with database, hosting and IDE around it |
| Base44Full comparison → | Bolt scaffolds full-stack apps with the code fully visible, packages installing in seconds and the terminal there when you want it, which is what a developer who will then edit it as real code needs | the backend should be bundled and never met, and holding the source is not the point |
| v0Full comparison → | Bolt fixes the errors iteratively with the agent watching the output, and deploys from the same environment the app was built in | the task is React UI and you want to start from generated components rather than from scratch |
| GLM (Z.ai)Full comparison → | Bolt prices by token in a way that rewards focused sessions over meandering ones, for full-stack prototypes built in the browser as real code you will edit | the flat rate should make the cost independent of how hard everyone works |
Design, UI & prototyping
Bolt prototypes with the code visible and editable throughout
Bolt prototypes with the code visible and editable throughout. It builds and runs full-stack prototypes entirely in the browser, Figma imports convert with unusual fidelity to brand detail, and framework choice runs wider than its rivals, which suits builders who intend to touch the files as well as the prompt. Developers who want to see what the prototype is made of feel at home. The aesthetics are default: it prototypes function, so design-led interfaces and visual systems still come from design tools, and the working app it hands you is not a designed one.
Example tasks
- Turn an idea into an interactive prototype users can click
- Put real behaviour behind a design concept quickly
- Test a flow with actual state and data, not hotspots
- Iterate interface behaviour by describing changes
- Share a running prototype instead of a video of one
Limits
It prototypes function with default aesthetics: design-led interfaces and visual systems come from design tools. Expect a working app, not a designed one.
Compares
| vs | Pick Bolt (StackBlitz) when | Pick the other when |
|---|---|---|
| LovableFull comparison → | Bolt keeps the code visible and editable throughout, reading Figma imports faithfully and offering wider framework choice for a builder who steers | a non-technical builder wants the most guided path to a working, shareable product |
| v0 by VercelFull comparison → | Bolt builds and runs full-stack prototypes entirely in the browser, converting Figma imports with unusual fidelity to brand detail and offering wider framework choice, which suits a builder who intends to touch the files as well as the prompt | the deliverable is polished React components on the stack the team already ships |
| ReplitFull comparison → | Bolt reads Figma imports with unusual fidelity to brand detail and puts real behaviour behind a design concept quickly, so a flow is tested with actual state and data rather than hotspots | the prototype has a future and should be born in an environment that can raise it into a real internal tool |
| Base44Full comparison → | Bolt prototypes function with default aesthetics, so what comes back is a working app rather than a designed one | the mockup should be a running, hosted application rather than a static design, with authentication and storage already behind it |
| Figma AI (Make / First Draft)Full comparison → | Bolt (StackBlitz) hands over a running prototype instead of a video of one, so what gets reviewed is the behaviour itself | fidelity to existing designs matters and the team already lives in Figma |
Where to start
Not sure what to adopt first?
Five quick questions about your job, task and constraints. We'll suggest your top three tools, plus the one to try first.
Alternatives
Same category, different strengths.
Common questions
Is Bolt (StackBlitz) free?
There's a free tier to start; paid plans add capacity and features.
Where does Bolt (StackBlitz) fit best?
Bolt (StackBlitz) fits best in Founders & entrepreneurs and Product management; see its practice notes for how.
Before sharing confidential or personal data, check this tool's data-governance and training policies. They differ between providers and can change.
Last checked: August 2026