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Prototyping login forms for web and mobile – from forever styles to UX trends, here are our top 7 UI designs

Prototyping login forms for web and mobile – from forever styles to UX trends, here are our top 7 UI designs

How well your app or site converts depends heavily on smart, memorable UX. And whether it’s a website or app, iOS or material design, the login form is crucial to the user experience as it’s usually the first point of entry for attracting users.

Despite its fame, the login form is often fraught with poor UX choices that send users running for the hills. Never-ending scrolling, unknown password errors, logins that disguise themselves as registration forms – the list goes on. But bad login design stops here. We’ve compiled a list of our favorite input fields that ooze usability and great user experience as well as show you how to prototype them.

So read on for 7 login and sign up forms that you can create to boost your conversion rates in no time.. To get started, download Justinmind!

#1 The classic login form for web

Image credit: Sebastian Petravic

This is your basic login form for web: the user enters their email address and password to gain access to their account.

As Nick Babich points out, if logging in is a required action for your site, then it needs to be a primary feature on your homepage. If users have to log in to access your site’s services, focus on information fields that are clear and concise. Make it easy for users to navigate to by keeping your form in clear view in the UI.

Sebastian Petravic’s login screen is a triumph of minimalist UI design. The no-noise UI, simple color scheme, and single font focus the user’s attention on the main task. The ‘Welcome back!’ message in this example adds a familiar tone to the page. The forgotten password and create an account links complete this login experience.

Prototype it!

Justinmind’s prototyping tool has a range of UI libraries that contain ready made icons and buttons to help you create the perfect login form for your web prototypes.

Try our Bootstrap library on for size. Then, use ‘On Click’ + ‘Link To’, ‘Set Value’ and ‘Set Active Panel’ events to make your form interactive and then simulate the web prototype to see it work in real-time. If you want to be able to tab between input fields, see this tutorial.

#2 Login form with option to unmask password

Image credit: U.S. Web Design Standards

These days we have so many passwords to remember and sometimes we enter the wrong one for the wrong site or app – making filling in forms and logins a nightmare. Not being able to see our passwords can result in characters being mistyped and then the user not being able check inputs or correct their mistakes.

In terms of usability, the password unmask feature can make it easier for users to access their accounts and improve the user experience. It is especially useful on mobile devices, when users are more likely to mistype.

Worried about security? Simulate a password strength meter with the help of this tutorial.

Prototype it!

Create your login form as in #1. Then, place a text box on top of the password input field. Leave it blank, set the fill color to white and make it hidden in the properties tab. Add another text box and write ‘Show Password’ in it. Create a variable and name it ‘password’.

Next, add an ‘On Focus Out’ + ‘Set Value’ event to the password input field, selecting the variable you created. Set the value to calculated and drag the variable to the expression builder in the dialog that appears. Now select the ‘Show password’ text box and add an ‘On Click’ + ‘Set Value’ event, selecting the blank text box. Set the value to calculated and drag the variable to the expression builder again. Finally, add an ‘On Click’ + ‘Show’ action afterward, again selecting the blank text box. And that’s it – you’ve created an unmask password option!

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#3 Sign in screen for iOS


When it comes to designing for Apple, clarity, deference and depth are your 3 priorities. To maximize impact and reach of your iOS sign in screen, keep things simple.

For example, provide only the essential components (email and password input fields and the sign in button) so that the user flow is clear and UI navigation is manageable. All main feature content on the sign in page should be centered so as to capture the user’s attention on the task at hand.

Prototype it!

Justinmind’s iOS UI kit has a ready made sign in screen. The kit was built with SVG vectors so you can change the color and size of each icon as needed, or in line with specific industry standards. All you need to do now is add the events to make it interactive.

Add an ‘On Tap’ + ‘Link To’ event to the sign in button, linking it to the screen you want the user to see upon logging in – e.g. the Apple mailbox. You’ll need to create a condition so that only the correct password allows the user to log in. This would look something like this:


You can also create your own sign in screen by dragging and dropping iOS icons and buttons to your iPhone prototype.

Tip: Create a prototype that autopopulates the password field once the user inputs their username so the app memorizes their data and they won’t have to keep inserting the same information.This refers to Apple’s User Control Human Interface guidelines – respond to user action with intuitive adaptation.

#4 Material design screen flow for sign up experience


The material design screen flow validation is a common Android sign up activity. Screen flow validation is essential when you’re creating an input form with multiple screens and is often used in banking sites for a more secure sign up. And according to usability studies, many users prefer multi page forms to one-page forms with multiple fields because they don’t require scrolling.

Prototype it!

Creating a screen flow validation for your android app design is simple. First create a welcome page – this is where the user will start their sign up experience. Create a screen for each step you wish the user to complete: fill in name, surname, email address, password. Then, create a summary page for your material design form to show the user what the information they have entered, and to confirm that the information is correct.

The standard typefaces used in android material design are Roboto and Noto – both available in Justimind’s Google Fonts.

The motion Material Design guidelines motion instructs us to create transitions that are quick and precise, which respond quickly to user input, don’t keep the user waiting to complete their goal and guide the user to the next view (more on this in the Material Design guidelines: Motion). Justinmind’s slide transition effect coupled with the mobile gestures makes it easy to replicate these movements.

#5 Web sign up form with placeholders


Using placeholders can be a great way of making your sign up form more intuitive 0 particular on mobile where there’s less space. Placeholders are a type of label added to an input field as a visual cue to the user. The idea is that the user knows exactly what information they need to enter into each field, so they can complete the form quickly and without guesswork. Once they’ve clicked within the input field, the placeholder disappears instantly. A usability dream.

Prototype it!

To create a manual placeholder to your Justinmind sign up form, you’ll need dynamic panels, input text fields, text boxes and button widgets. Read this tutorial for a step to step guide, and don’t forget about adding your variables!

If you’re looking for a quick-start, why not try out out new placeholder feature for the input text field. You’ll find it in the Properties tab when you have an input text field selected in the canvas.

Bonus tip: add an error message to your form so the user knows where they’ve gone wrong and exactly what information needs to be re-entered.

#6 Sign in form with microinteractions

Image credit: Martin Bonov

Microinteractions, mini actions centered around a single task, are a great way of giving the user feedback between steps in a user flow. Microinteractions in a sign in form, such as a green tick or a loading wheel, tell the user that their information is correct or being processed.

Martin Bonov’s example of microinteration in this login form is just what you need to inform the user of their progress.

Prototype it!

To change the appearance of or animate an element or an icon in the sign up form, simply choose an effect and a Change Style event. When the user performs the relevant action, the change to your UI element will take effect.

#7 Sign in form with social account details

Image credit: Auth0

Giving the user the option to sign up or sign in with social accounts is a great way of eliminating the lengthy sign up form pain point. They can sign up or log in with just a click or a tap.

Auth0’s example also offers a great way to createa container for users to switch between login and registration components quickly and easily.

Prototype it!

Depending on the device you are designing for, you could either use the social media icons in Justinmind’s iOS and Android UI kits, or create your own with image widgets.


Download Justinmind now and get prototyping your best login form in no time!

Emily is Marketing Content Editor at Justinmind

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