Paul Köhler

Form validation in Flutter — made simple

A small package of reusable validators that make form validation in Flutter simple and easy to combine.

Flutter Form Validation

If you’ve ever worked with forms in Flutter, you know the pain:

Writing validators. Repeating code. And making sure everything still works when things get more complex.

That’s why I put together a small package of reusable validators I use in every project. And yes — they’re simple to use and even simpler to combine.

One interface, many options

Each validator follows the same pattern. You can use them on their own or combine them using a MultiValidator. Handy for login screens, signup forms, and everything in between.

Cleaner code with callable validators

You just plug them into the validator: parameter of any FormField. No boilerplate needed, no weird syntax. Just pass it in and go.

Want to try it? Grab it here

👉 https://github.com/inf0rmatix/dart_components

Let me know what you think — happy to hear your thoughts or ideas for other small helpers like this 😊

Looking for a lightweight way to improve your form logic? Let’s connect and exchange!