App builderFree start
Bolt
StackBlitz
Bolt (bolt.new) builds a project in the browser from a prompt and shows a live preview. It is a fast way to start a small web app, including a simple game page. There is a free allowance and paid plans. Confirm the current price on bolt.new.
7.2
Preliminary
Editorial score out of 10. Not a benchmark.
What we tried
Asked it to scaffold a tiny browser page with a moving square and checked that the preview loaded. We did not time it or compare cost.
Scores are preliminary editorial notes from a short hands-on pass. They are not benchmark results, not pass rates, and not for sale. A shared task suite is not published yet, so we do not print speed, cost, or success-rate figures.
Preliminary notes
- Setup9/10
- Editing7/10
- Agent work7/10
- Docs and control6/10
Good fit
- A first prototype when you do not want to install a toolchain
- Small web apps and web-playable sketches
Limits
- Larger existing repos are a better fit for an editor or CLI agent
- Token allowances on the free plan run out