This one isn’t really about AI, but if you’re building a lot of sites with Claude, Codex, or Gemini, you’ll run into this constantly: you just need a quick, functional contact form, and you don’t want to set up Resend or any real email infrastructure to get there.
Two tools handle this well. I’ve tested both, and the emails go through.
Formspree
Formspree is the more polished option. Setup takes about two minutes: sign up, verify your email address, create a form, and point your HTML action attribute at the endpoint it gives you. No backend code required.
The free plan gives you unlimited projects and forms, capped at 50 submissions a month. That’s plenty for a test site or an early-stage project. If you outgrow it, paid plans start at $15 a month for 200 submissions, then $30 a month for 2,000, and $90 a month for 20,000.
FormSubmit
FormSubmit is even faster to set up, and it’s completely free. There’s no signup: you point your form at their endpoint with your email address, submit it once, click the confirmation link they send you, and every submission after that lands straight in your inbox.
It’s free because it doubles as a marketing funnel for the software development shop that built it. Putting a genuinely useful free tool in front of developers is a smart way to advertise, and I don’t mind giving them the exposure since the tool works as advertised.
Which one to use
Neither service asks for a credit card, and neither needs real personal information beyond an email address you can actually read (to verify the form and receive submissions). Anything else you type into the signup fields is up to you.
If you’re spinning up a lot of small apps or one-off sites and just need submissions to land somewhere, either of these will get you working forms faster than wiring up proper email infrastructure.