The Register / Coding agents / Bolt.new
Register entry · Coding agents · updated 26 Sept 2026
Bolt.new
Bolt.new generates full-stack web apps, and Expo mobile apps, from chat prompts and runs them in the browser using StackBlitz WebContainers. It includes Bolt Cloud hosting (bolt.host), a built-in database, GitHub sync, MCP connections and a security audit. In September 2026 it added Bolt Forge, a cheaper agent on open-source models whose use requires consent to training on project data. The original 2024 open-source code remains on GitHub, but the product itself is closed source.
What reviewers and users praise
- Fast prompt-to-live-URL for prototypes and mockups (Preuve review; HN users)
- Complete hosted stack: hosting, auth and database in one place (scored.tools review)
- Weekly release notes throughout mid-2026
What they criticise
- Token costs escalate with project complexity (Preuve review)
- Reports of runaway token use and slow, bot-only support (HN Ask HN posts, Dec 2025 and Feb 2026)
- In-browser runtime can freeze on large projects (Reddit r/boltnewbuilders snippet)
- By default (outside EEA/UK/CH) project content may be used for model training and licensed as de-identified datasets unless the user opts out
| Price | Free, paid from $25 |
|---|---|
| Use it via | Web app |
| Runs on | web |
| Licence | proprietary |
| Updated | Evidence collected 26 Sept 2026 |
How the rating was worked out
Weights for Coding agents: adoption 35%, experts 40%, crowd 25%. Pillars without enough evidence are left out and the others re-weighted. The method.
| Adoption & momentumweight 35% | 76 | GitHub stars 17k → 67 · Reported users 10M → 81 · 11 releases in 90 days → 80reach × 0.7 + momentum × 0.3 |
|---|---|---|
| Expertsindependent reviews · weight 40% | 65 | 7 independent reviews (3 positive · 4 mixed · 0 negative), averaged toward 50 for small samples. |
| Crowdcommunity sample · weight 25% | 46 | 19 dated posts from hackernews, reddit, youtube, forum: 6 positive · 5 mixed · 8 negative (positive + ½ mixed) ÷ n, averaged toward 50 for small samples |
| Rating | 64 | high confidence (3 of 3 pillars, 19 community posts). |
Evidence checks. 3 items removed: search-engine results page (2); date does not match the source (1). 2 reviews from tool directories, AI-written pages or unnamed authors not counted. 4 items could not be checked at the source (the page could not be fetched, or the quote is from a comment under the linked post); kept and marked “unverified”. How evidence is checked.
Trust & safety
Seven dimensions graded A–D from documented facts. Overall: B.
Permission model
Generated code runs in an in-browser WebContainer sandbox, not on the host OS; the agent applies edits automatically, with plan/discuss modes and explicit publish actions. Team admins control publishing and integrations. Rubric fit is approximate for a cloud builder. source
Data access scope
Project-scoped; team admins control member roles, publishing, integrations and data exports; GitHub org admins can restrict which repositories Bolt users can access. source
Data storage
Projects, hosting (bolt.host) and Bolt database are vendor cloud; no documented region selection found. Code can be exported via GitHub. source
Data retention & training
Privacy policy: outside the EEA/UK/Switzerland, Bolt content may be used to train models and to prepare de-identified datasets licensed to third parties unless the user opts out; Bolt Forge requires consent to training. Third-party model providers are contractually barred from training. source
Incident history (24 months)
No platform-level security incident or CVE found in searches covering the last 24 months; published articles concern insecure apps generated with Bolt, not the platform itself. source
Compliance
SOC 2 Type 2 listed on the Bolt trust center; enterprise page cites SOC 2 certification. source
Transparency
Product is closed source (the 2024 open-source snapshot is not maintained); detailed weekly public release notes and documentation. source
The experts
7 named independent reviews found; dated reviews from the last 12 months are scored.
- mixed
3 out of 5. The WebContainer architecture that runs full-stack apps in the browser with zero setup is a real technical achievement
Vincent, founder of Preuve AI (idea-validation tool; not an app builder) · 2 Sept 2026 · preuve.ai - positive
The combination of prompt-based generation, Supabase integration, and instant deployment creates a workflow that genuinely compresses the build cycle from days to hours.
Zane, vibecoding.app (discloses affiliate links) · 18 Mar 2026 · vibecoding.app - positive
The fastest zero-setup way to build in the browser, best when you're comfortable deploying.
Matt Graham, founder of RapidDev (development agency that builds on these platforms) · 1 Sept 2026 · rapidevelopers.com - positive
Overall, I enjoyed testing it, and I think if you have some patience, you can build genuine working apps with it.
Martin Dubovic, All About Cookies · 31 Mar 2026 · unverified · allaboutcookies.org - mixed
I’ve enjoyed using Bolt’s intuitive collection of tools, but unfortunately it doesn’t deliver a no-code web app as effortlessly and quickly as many of the alternatives.
Christian Cawley, TechRadar Pro · 1 Jul 2026 · techradar.com - mixed
The Good: The Supabase integration is unbelievably fast and saved me a ton of time. The Bad: It's tough for non-coders, and the AI generated code it knew was faulty.
Aaron K Saunders (dev.to) · 3 Oct 2025 · dev.to - mixed
I also explain where Bolt shines, where it breaks, and why you eventually need to move into tools like Cursor to finish serious software projects.
Pete Drake (YouTube) · 2 Jan 2026 · youtube.com
The crowd
19 coded posts from hackernews, reddit, youtube, forum.
- negative
TL;DR: Bolt.new's AI burned 10M tokens on unauthorized changes.
Ask HN: Startup launch destroyed by Bolt.new's AI · 19 Dec 2025 · news.ycombinator.com - negative
Submitted 6 support tickets over 7 days - ZERO human responses - only automated "Sam" bot replies
Ask HN: 7 days down, zero human support from Netlify/Bolt.new (paid account) · 6 Feb 2026 · news.ycombinator.com - positive
A few weeks back, I showed Bolt.new to the CEO and ever since then, our workflow has sped up tremendously.
HN thread 'The five orders of ignorance (2000)' · 17 Jan 2026 · news.ycombinator.com - positive
a CEO who got a Bolt.new subscription to be able to generate some high-level mocks ups for me to utilize that just saved us months of back and forth.
HN thread 'Codex, Opus, Gemini try to build Counter Strike' · 2 Dec 2025 · news.ycombinator.com - positive
I've built for fun with Bolt.new: https://tendayweekcalendar.com/ I did no manual coding except small bug fixing.
Ask HN: Can you share what you built using Cursor/Agentic IDEs? · 23 Nov 2025 · news.ycombinator.com - positive
it was amazing to see the code generation using my 'proprietary method' and managing to do it with just ONE prompt.
HN thread 'Beddel Protocol' · 7 Jan 2026 · news.ycombinator.com - mixed
Launched as part of the Bolt.new hackathon in August and growing steadily. Going from a 100% vibe coded web app to a full production system has been quite a ride!
Ask HN: Those making $500/month on side projects in 2025 · 18 Dec 2025 · news.ycombinator.com - positive
In my experience, Replit and Bolt (and other similar tools) are quite good at this kind of 0->1 kind of thing.
news.ycombinator.com (LLMs reward expertise) · 4 Aug 2026 · news.ycombinator.com
Pricing
As published, checked 26 Sept 2026.
| Plan | Price | Notes |
|---|---|---|
| Free | Free | 1M tokens/month, 300K daily limit |
| Pro | $25 / monthly | From 10M tokens/month, no daily limit |
| Teams | $30 / monthly per member | Pro features per member; tokens not shared |
| Enterprise | Custom | SSO, SOC 2 documentation, custom token allocation |
Recent changes
- 20 Sept 2026
Bolt Forge: agent on open-source models with higher usage limits; requires consent to data use for training source
- 6 Sept 2026
Visual edits directly in the preview source
- 2 Aug 2026
Project security audit source
- 26 Jul 2026
Skills (reusable instructions) source
- 19 Jul 2026
Bolt Slides presentation builder source
Ranked alongside
Other ranked entries in Coding agents.
Sources
Every figure above traces to one of these, observed up to 26 Sept 2026.
- Bolt Forge: build with open-source AI models in Bolt
- Bolt Enterprise
- bolt.diy (community open-source fork, 19,909 stars, last push 2026-02-07, no releases since May 2025)
- bolt.new Reviews (2026) | Product Hunt — source page for the three Product Hunt items
- HN Algolia comment search, query "bolt.new", since 2025-10-01