Prototyping tool · Ranked 12 of 37 in the index
Bolt.new Review (2026)
StackBlitz's in-browser builder: a full Node toolchain running in a WebContainer, so the first version of your app appears faster than anywhere else.
3.9 / 5Last verified: · Next scheduled check: The quick answer
Assessed for 2026Buy as a sketchpad, not as a factory. Bolt is the fastest tool in this index at getting from a sentence to something running in a browser tab, and the WebContainer trick means there is no cold start and no cloud build queue to wait on. For a pitch on Thursday, nothing here beats it. The problems begin on day three. Token consumption is the least predictable of any builder we tested, error recovery is the weakest of the well-funded tools, and our panel hit two dead ends where the agent could not repair a broken dependency tree and starting again was cheaper than continuing.
- Best for
- Rapid prototypes, pitch demos, and validating an idea before anyone commits budget to it
- Not for
- Anything you intend to operate for two years, or any project with a hard monthly cost ceiling
- Price from
- 18 EUR
- Free tier
- Yes
The ten axes
Every builder in the index is scored on the same ten axes with the same published weights. This is how Bolt.new performed on our test briefs.
- Reliability16%
- 3.7
- Integrations16%
- 4.0
- SEO and GEO13%
- 3.6
- Design quality12%
- 4.2
- Agent performance10%
- 4.0
- Speed9%
- 4.7
- Value9%
- 3.4
- Scalability7%
- 3.5
- API and MCP access5%
- 3.4
- Code ownership3%
- 4.7
Every axis is scored from 0 to 5 stars. The percentage is that axis's published weight in the overall 3.9 rating.
The verdict
Buy as a sketchpad, not as a factory. Bolt is the fastest tool in this index at getting from a sentence to something running in a browser tab, and the WebContainer trick means there is no cold start and no cloud build queue to wait on. For a pitch on Thursday, nothing here beats it. The problems begin on day three. Token consumption is the least predictable of any builder we tested, error recovery is the weakest of the well-funded tools, and our panel hit two dead ends where the agent could not repair a broken dependency tree and starting again was cheaper than continuing.
StackBlitz's in-browser builder: a full Node toolchain running in a WebContainer, so the first version of your app appears faster than anywhere else.
The dissenting view
One panellist thinks 3.7 on reliability is too harsh, and that we are measuring Bolt against a job it is not selling. His argument: prototyping tools are supposed to be thrown away, so counting a dead end at day three as a reliability failure is like marking down a sketchbook for not being a canvas. He would score it above Base44 overall. The rest of the panel disagreed on the grounds that Bolt is widely bought as a production builder, and buyers deserve to be told where it stops.
One member of the panel disagreed with the consensus. We publish the disagreement rather than average it away.
What it looks like
Pricing
Free daily token allowance, paid plans from about 18 EUR per month with token top-ups
| Plan | Price | Billing | What you get |
|---|---|---|---|
| Free | Free | daily | Daily token allowance, public projects |
| Pro | 18 EUR | monthly | Monthly token pool, private projects |
| Pro 50 | 46 EUR | monthly | Larger token pool for sustained work |
| Teams | 27 EUR | per seat, monthly | Shared token pool, collaboration |
Feature by feature
The same eleven checks, run on every builder in the index.
| Capability | Status |
|---|---|
| Full-stack backend | Partial |
| Database included | Via Supabase integration |
| Auth included | Via Supabase integration |
| Code export | Yes, download or push |
| GitHub sync | Yes |
| One-click deploy | Yes, via Netlify |
| Custom domain | Yes, via host |
| Mobile or native output | Expo support |
| Team collaboration | Limited |
| Public API or MCP server | Limited |
| Self-hosting the output | Yes, standard code |
What works / What does not
What works
- Fastest path from prompt to running app of anything we tested
- No cold start: the toolchain runs in the browser
- Full code download or GitHub push, no proprietary runtime
- Expo support means a mobile target is genuinely available
What does not
- Token burn is the least predictable in the index
- Weak recovery when a dependency tree or build breaks
- Backend depends on you wiring up Supabase yourself
- Long projects accumulate problems the agent cannot unwind
User reviews
261 ratings for Bolt.new, editor panel first. Community ratings accumulate on top of our seeded launch score.
Community rating
- 5 ★52%
- 4 ★28%
- 3 ★10%
- 2 ★5%
- 1 ★5%
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- Editor panel
Wins the first hour, loses the third day
Tom Brackett@tbrackett
Testing lead. Maintains the fixed brief harness and the reproducible build logs behind every score.
Bolt was fastest to a running app on five of six briefs, sometimes by a wide margin, because the toolchain runs in the browser with no build queue. It was also the only well-funded tool where two of my runs ended in an unrecoverable state: a broken dependency tree the agent could not unwind, where restarting was cheaper than continuing. Token consumption during those attempts was the least predictable I measured. A 3.7 on reliability against a 4.7 on speed, and the gap between those two numbers is the review.
- Pros
- Fastest first draft by a clear margin. No cold start. Clean code download.
- Cons
- Two unrecoverable dead ends in eighteen runs. Token burn is unpredictable.
82 readers found this helpful2 replies
stackblitz_fan
14 August 2026
Two dead ends in eighteen runs is a 11 percent failure rate. Would like to know if that is worse than the others measured the same way.
24 readers found this helpfulTom Brackett@tbrackett
14 August 2026
It is. Lovable and Replit each had one unrecoverable run out of eighteen, v0 had none, and Emergent had four.
31 readers found this helpful
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- Editor panel
Spent 30 EUR of tokens on a bug it created
Meera Iyer@meeraiyer
Full-stack developer, five years.
It broke its own package.json, then attempted eleven fixes, each one consuming tokens, none working. I fixed it by hand in four minutes once I stopped asking the agent. The speed is real but the recovery story is the worst of the serious tools and the meter runs while it flounders.
- Pros
- Very fast when nothing is wrong.
- Cons
- Failure recovery is poor and expensive.
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- Editor panel
Got me through the investor demo
Oscar Lund@oscarlund
Startup founder, pre-seed.
I had four days and no product. Bolt gave me something clickable in two hours and something convincing in two days. We raised. I then rebuilt the whole thing elsewhere, which I think is the correct way to use this tool and not a criticism of it.
- Pros
- Unbeatable for a deadline demo.
- Cons
- I would not have shipped what it produced.
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- Editor panel
Our sketching tool of choice
Tobias Reuter@treuter
Design lead, product studio.
We use it the way we used to use Framer prototypes: to argue about a flow with something real in the browser. It is excellent at that and cheap at that, because sessions are short. I would not let it near a client codebase.
- Pros
- Great for short exploratory sessions.
- Cons
- Not built for sustained work.
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- Editor panel
The best teaching tool in this list
Adaeze Nwosu@adaezen
Bootcamp instructor.
My students see a working app in ten minutes, then I break it and we fix it together. WebContainers mean no environment setup, which used to eat the first two days of every cohort. As a production builder I would rank it lower; as a way to learn what a web app is, it is first.
- Pros
- Zero setup, instant feedback loop.
- Cons
- Encourages habits you have to unteach later.
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Frequently asked
- Is Bolt.new good enough for production?
- For a small, simple app, sometimes. For anything you plan to operate for years, our panel would not recommend it as the primary builder. Its reliability score of 3.7 reflects two dead ends in our own test builds.
- Why is Bolt so fast?
- It runs the Node toolchain inside your browser using StackBlitz WebContainers, so there is no remote build queue and no container to spin up. That is a real engineering advantage and it shows.
- How much does Bolt cost in practice?
- Plans start around 18 EUR per month but tokens are the real currency. Our testers routinely doubled the base plan with top-ups during a week of active building.
- Bolt or Lovable?
- Bolt for the first two days, Lovable for the next two weeks. Bolt is faster to a demo; Lovable is markedly better at surviving iteration.
Sources
- Bolt.new product site · 14 August 2026
- Bolt.new support documentation · 13 August 2026