Login Form Builder

Generate the markup for a login form and paste it into your project. Choose whether people sign in with an email address or a username, decide which optional features you want, and copy out clean HTML with the styling already applied.

Markup, Not Authentication

It is worth being explicit about what this generates, because the distinction matters. The page produces the front end of a login form — the visible fields, their labels and their markup. It does not create a user database, does not check credentials and cannot, because it runs entirely in your browser with no server behind it. What you get is the part that is tedious to write correctly, to be dropped into an application that already has a backend.

• Three sign-in methods are supported: email, username, or a single field that accepts either.
• Optional elements can be switched on individually — a remember me checkbox, a forgot password link, a show password toggle, a sign-up link and social login buttons.
• The form title, the submission address and the accent colour are all configurable.
• Every user-supplied value is escaped before it goes into the markup, so a quotation mark in a title cannot break the output.

Configuring a Form

1. Set the heading. It defaults to Sign In, which is the clearest label for most contexts; a specific heading such as Customer Portal tells people they are in the right place.
2. Choose the sign-in method. Email suits most consumer products, username suits internal tools and gaming, and the combined field is the most forgiving since it accepts whichever the person remembers.
3. Set the submission address. This is the value that goes into the form's action attribute and decides where the browser sends the credentials. It defaults to a relative path of /login.
4. Pick an accent colour from the six options, or set your own by editing the value after pasting.
5. Tick the optional elements you want. Show password adds a checkbox that will need a small amount of JavaScript in your application to function, since this tool generates markup only.
6. Preview, then copy the markup into your template.

The Three Sign-In Variants

The difference between the three methods is more than the label on the field. It changes the input type, the field name and the autocomplete hint, and those last two affect how password managers handle the form.

• Email mode produces an input of type email with the name email, which brings up an email keyboard on mobile and lets the browser reject obviously malformed addresses before submission.
• Username mode produces a text input with the name username and an autocomplete hint of username, which is what tells a password manager that this field identifies the account.
• Combined mode produces a text input named login with the same username autocomplete hint, because the browser has to guess and the account-identifier hint is the closest match.
• In all three, the password field is named password with an autocomplete hint of current-password. That hint is what allows a manager to fill the password for an existing account rather than offering to save a new one.
• The remember me checkbox submits a value of 1 under the name remember when it is ticked, which is the convention most backends expect.

Security Notes That Belong With Any Login Form

Generating the markup is the easy part. These are the things that decide whether the form is safe once it is in place, and none of them can be handled by a front-end generator.

• The form defaults to POST, which keeps credentials out of the URL where they would end up in browser history, referrer headers and server logs. Keep it that way.
• Serve the page over HTTPS. A login form on an insecure connection sends the password in clear text, and no amount of markup care compensates for that.
• The generated form contains no protection against cross-site request forgery. Your backend should issue and verify a token, because a login form is an obvious target.
• Rate limiting and account lockout live on the server. A form that simply posts credentials is open to automated guessing at whatever speed the attacker can manage.
• Client-side validation is a convenience, not a control. The required attributes here improve the experience but are trivially bypassed, so every check must be repeated on the server.
• The show password toggle needs a small script in your application. It is generated as a checkbox with an identifier you can attach to, but the behaviour itself is deliberately not included.

Choosing a Sign-In Identifier

Alternative	Notes
Email address	The default for consumer products because people remember it and it doubles as a contact channel. The cost is that email addresses change, and an account keyed to one needs a migration path when they do.
Username	Stable and memorable, and it avoids publishing an email address on public profiles. The cost is another thing to remember, and people will reuse or forget it. Common in games and internal tools for that reason.
Email or username	The most forgiving option and the one that produces the fewest support requests. It costs you a slightly more complex lookup on the server, since the identifier has to be matched against two columns.
Passwordless by email link	Removes the password entirely and the large majority of account security incidents along with it. Worth considering before adding another password form to the world, though it shifts the dependency to the security of the email account itself.

Login Form Questions

Does this tool create a working login system?

No. It generates the HTML for the form only. There is no database, no session handling and no credential checking, because the page runs entirely in your browser with nothing behind it. You need a backend that receives the submission and verifies it. The value here is that you get correctly structured, accessible markup without writing it out by hand.

Where do the credentials get sent?

Wherever you set in the submission address field. That value goes into the action attribute of the form, so the browser posts to it directly. If you leave the default of /login, the browser posts to a path called login on your own domain. Nothing is sent anywhere while you are using this page, since there is no submit action attached to the preview.

Are the autocomplete hints important?

More than they appear. They are what allow a password manager to recognise the form, fill an existing credential and offer to save a new one. A login form without them often leaves users typing passwords by hand from a notes app, which is precisely the behaviour that leads to weak, reused passwords. The generated markup sets them, which is a small detail with a real effect.

Is the generated markup accessible?

It uses labels associated with each input, which is the essential requirement, and the inputs carry proper types so that screen readers and mobile keyboards behave correctly. It does not include an aria-live region for error messages, because error presentation depends on your application's own validation approach. If you add inline errors, wire them to the field with an aria-describedby attribute.

Last verified: October 3, 2026

Launch Login Form Builder

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Maintained by Huang Bin · Last updated October 3, 2026