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Checkpoint allows you to perform validation checks for given input. Checkpoint is generic collection of rules with boolean output. You can create new instance of Checkpoint either by using builder or DSL.

Apr 8, 2020

UI form validation library for Android. It is highly customizable and easy to use. This library will works with TextView, EditText, AppCompatEditText, TextInputEditText, TextInputLayout and CheckBox. This library is designed in such a way that Its easy to add support for new widgets and add new rules.

Apr 9, 2020

EasyValidation is a text validation library for Android developed in Kotlin. It supports text validation for String, EditText, TextView, AutoCompleteTextView, TextInputLayout, and Spinner. It comes with lots of built-in rules for validation such as email, password, credit cards, special character validations and so on.

  • The Validator way validation support.
  • 30+ built-in validation rules like empty, email, credit cards, etc.
  • Extension methods for String, EditText, TextView, AutoCompleteTextView, TextInputLayout, and Spinner.
  • Multiple Validations and Checks
  • Collection Extension Methods for validations on multiple texts and views.
  • Create your own custom rules
Sep 10, 2018

Validator box library that can inspect any type of form, provides multiple validation functions with an inclusion of clearing views(❁´◡`❁) It would help developers to get two different functionalities i.e validate and clear.

  • Get started from validation, this library provides multiple functionality having 10+ validate functions. The user have an authority to validate whole form or even single view, procedure is described below. The view includes: Edittext, RadioGroup, Checkbox (include Multi checklist), Spinner
  • Secondly, it also provides multiple functions to clear whole form views or single view that are filled. The clearing functionality is work for all above described views including Switch (Toggle)
Mar 23, 2020

Implement validation for Android within only 3 steps. Developers should focus on their awesome code, and let the library do the boilerplate. And what's more, this could help keep your layout file clean.

Mar 1, 2015

Android library for fast and simple string validation.

Aug 20, 2018

A library to define all validation conditions at single place and handle all validations in a class in simple way.

Oct 19, 2019

Blitz is a library that provides an Android real time form validation.

Apr 16, 2019

A simple Android form validation.

Dec 13, 2017

A tool to validate text inside TextInputLayout.

Nov 20, 2017

Android fields validation library based on data binding adapters.

Mar 28, 2017

Data binding based Android library for validating input.

  • Easy to use
  • Highly customisable
Jan 25, 2017

Android Saripaar is a simple, yet powerful rule-based UI validation library for Android. It is the SIMPLEST validation library available for Android.

Jul 5, 2014

People don't write e-mail addresses without misspelling from time to time. @gmial.con addresses are too common... And we need to put a stop to it!

E-mail suggester allows to validate emails and suggest typo corrections.

Sep 9, 2015

Convalida is a simple, lightweight and powerful field validation library for Android.

Oct 6, 2017

This is a simple library that facilitates text validation and error handling in a user-friendly way on EditText with (TextInputLayout support). For MVVM + data binding stack.

Oct 30, 2019

A validation library with Kotlin DSL.

Mar 23, 2018

An Annotation based validation library for use with Android's DataBinding library in an MVVM architecture.

  • Quick and easily add validation rules to ViewModels by annotating the class.
  • Annotation Processing to eliminate reflection and generate boilerplate validation classes.
Sep 30, 2016

WinValidaition is a simple, yet powerful rule-based UI validation library based on annotations for Android.

Aug 28, 2019

A simple form validator.

Jul 21, 2019

This library allows you to validate Huge Forms containing Fields in android just by a single line, It saves you from the hassle of checking individual edit text boxes one by one then setting the error. This library supports edit texts view and no custom view is required. it also supports error validation for TextInputLayouts. The library is written in kotlin and is build on top of RX Java and it provides methods for error handling as well.

May 5, 2019

Simple and light library to do validate observable fields with MVVM for android

Each ValidatedObservableField work like ObservableField, but it have 3 observables properties:

  • value - contains the value of type T
  • valid - boolean true if ALL Rules are valid
  • errorMessage - contains NULL or errorMessage from first invalid Rule

Rules are validated one by one (the order is important), the first invalid Rule will break the chain and set errorMessage. Rules are validated onPropertyChange. You can create your own rules using Rule interface. You can use single Rule or many by RuleCommand.

May 25, 2017

A simple, easy to use, no frills, form validator for Android.

Aug 16, 2016

Android form edit text is an extension of EditText that brings data validation facilities to the edittext.

Jul 19, 2014

FormValidations is an open source library to validate forms in Android apps.

Jul 5, 2014

Removes invalid objects during Gson parsing which are marked as required, yet null/empty.

Jul 27, 2018

The simplest way to add reactive validation to your app.


in your application, there are fields that must be validated. When the number of validation rules becomes greater than 1, to control the display of errors in the fields becomes difficult.


Separate your validation logic by S in SOLID, into own classes. After that, attach validation rules to your fields and combine validation results for change some ui states (ex. change visibility of button)

Nov 1, 2017

A simple library for model validation based on annotations.

Feb 17, 2018

This library is heavily inspired by AwesomeValidation but with no external dependencies. It makes it very light weight.

Feb 20, 2016

The easiest way to bring validation to your project.

Nov 23, 2017