HTML5 CSS3 Vanilla JS Free

B2B Client Onboarding Portal — Dark Mode Login Form Free

Free dark mode B2B client onboarding portal built with HTML, CSS, and Vanilla JS. Clean login form with email validation, error states, and smooth interactions. Copy-paste ready.

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Source Code

client-onboarding-portal.html







Dark Login Portal




  ⚡
  Welcome back
  Sign in to your Flowtive account
  Invalid email or password.
  
    Email address
    
  
  
    Password
    
  
  Forgot password?
  
  or
  No account? Create one free