Chat-based builder that writes, runs and deploys full-stack web apps in your browser.
- Made by
- StackBlitz
- Free plan
- Limited free plan
- Paid from
- $25/mo
- Skill level
- Anyone
- Works on
- Web
Best forPeople who want to prompt their way to a working web app or prototype and still see and edit the generated code in the browser.
Not great forBig or long-running projects on the Free plan, because of the 300K-token daily and 1M-token monthly limits, and token use grows as the project gets larger.
Recent change Sep 14, 2026: launched Bolt Forge (open-source-model agent, free on Pro until Oct 14; to use it you must agree to de-identified training use) and a $9/month waitlist-only 'Bolt Lite' plan. May 2026: Microsoft Azure/365 partnership (not an acquisition). New privacy policy from Sep 14, 2026 allows training on Bolt content unless you opt out.
Bolt, from StackBlitz, is a chat-based app builder that writes, runs and deploys full-stack web apps in your browser. You describe the app, watch it get built, and can see and edit the generated code as it goes.
The free plan allows 300,000 tokens a day and a million a month, which covers small projects; larger apps use more tokens per change as they grow. Pro costs $25 a month, removes the daily limit and lets unused tokens roll over.
A privacy change to know about: from 14 September 2026, StackBlitz may use your Bolt prompts, code and outputs to train AI models unless you opt out in account settings. Users in the EEA, UK and Switzerland are excluded. Its new Forge agent, which runs on open-source models, also requires you to agree to de-identified training.
Pricing
Limited free plan: 300K tokens per day and 1M tokens per month; public and private projects; Bolt branding on hosted sites; 10MB uploads.
| Plan | Price | What you get |
|---|
| Free | $0 | 300K tokens/day, 1M/month |
| Bolt Lite | $9/month | Waitlist only (sign-ups close Oct 14, 2026); Forge (open-source models) agent only; not shown on the main pricing page |
| Pro | $25/month | Billed monthly; starts at 10M tokens/month; no daily limit; unused tokens roll over; no Bolt branding |
| Teams | $30/user/month | Billed monthly; Pro features plus team admin and private NPM registries |
| Enterprise | Custom | SSO, audit logs, compliance support |
Prices in US dollars, billed monthly unless the plan says otherwise. Makers change prices often; check their site before you buy.
Your data
StackBlitz's privacy policy says that from Sep 14, 2026 it may use Bolt prompts, code and outputs to train AI models unless you opt out in account settings or email privacy@stackblitz.com (EEA/UK/Swiss users are excluded); using the Forge agent requires you to agree to de-identified training by partners.
Under the hood
Runs on: Claude Sonnet 4.6 (default), Claude Haiku 4.5, Claude Opus 4.7, GLM 5.3 (Forge), GLM 5.3 Flash (Forge), Kimi K3 (Forge), DeepSeek v4 Pro (Forge). Compare the models themselves in the model directory.
Sources checked (6)
- bolt.new
- bolt.new
- support.bolt.new
- support.bolt.new
- stackblitz.com
- bolt.new
