You found a site you like and it looks suspiciously like it took an afternoon. Paste the address above and we will check whether it runs on Lovable, Base44, Framer, Bolt.new, Replit, v0 or Durable. Knowing the tool is useful for one practical reason: it tells you what it would take to make something similar yourself.
The checker opens the site, reads the code it serves and looks for marks each platform leaves behind. It works on the platform's own addresses, and in most cases on custom domains too.
This list comes straight from our detection log and changes as people use the checker. We began counting these builders in November 2026, so it is an early picture of what our visitors look up, not a measure of the whole web.
| AI builder | Times detected on Gochyu |
|---|---|
| Lovable | 5 |
| Base44 | 2 |
| Framer | 1 |
| Replit | 1 |
| Durable | 0 |
| v0 | 0 |
| Bolt.new | 0 |
If the check names a builder, this is what that tells you about the site, and whether the same tool suits what you have in mind.
| Builder | People use it for | Worth knowing |
|---|---|---|
| Lovable | Web apps and startup prototypes built by chatting | Strongest when the app needs logins and saved data |
| Base44 | Working apps with the database and hosting already included | Owned by Wix, and you never have to think about deployment |
| Framer | Polished marketing sites and portfolios | A design tool first, so many Framer sites had no AI involved |
| Bolt.new | Full projects built in the browser | Easier if you are comfortable reading some code |
| Replit | Apps made with a coding agent, then hosted in the same place | A full coding workspace, so expect more to learn |
| v0 | Interfaces and pages published through Vercel | Made for React, so it leans towards developers |
| Durable | Quick sites for small local businesses | Fast to start, with less control over the design |
An empty result does not mean a person built the site by hand. Three things can hide it:
For anything else, our CMS detector covers the wider field of platforms.
If the plan is an app rather than a brochure site, try Base44. You describe it, it builds it and hosts it, and you can see in an evening whether the idea holds up. For a wider comparison, read our guide to AI website builders.
