Can I make a journaling app with an AI builder if I can't code?

Depends what you want people to do. If the main goal is sharing your writing, a simple website or blog might be enough. If you want people to answer prompts, try a form first. Neither requires you to maintain an app.

Yes, a visual AI builder can be a reasonable way to try a small prototype. Pick one thing the journal should do, such as letting someone respond to a prompt, and see if you can get that working before adding accounts, mood tracking, or other extras.

Expect limits when you want something very custom. Also, a working demo isn't the same as an app you're ready to share widely. Journals can contain sensitive information, so check how the builder stores and protects entries before asking anyone to use it for private writing.

I'd decide whether the project is about journaling or about learning to build an app. Both are valid, but an AI builder can turn into a project of its own, and generated code may be tricky to maintain if you don't understand it.

If building sounds fun, start small and take time to understand what the tool creates rather than relying on it for every change.

Before choosing a builder, try the core idea with a few people using a page or form. See whether the prompts or sharing format are useful. That feedback can tell you what an app would actually need to do.