Internet Speed Test AI Prompt Library CSS Gradient Generator Meta Tag Generator Color Converter QR Code Generator

Form Field Auto-Filler Generator

Generate a JS snippet to prefill form fields from URL parameters.

Example HTML

<form>
  <input type="text" name="email" placeholder="Email" />
  <input type="text" name="username" placeholder="Username" />
</form>

<!-- Example URL: yoursite.com?email=test@example.com&username=tester -->

JavaScript

document.addEventListener('DOMContentLoaded', () => {
  const params = new URLSearchParams(window.location.search);
  params.forEach((value, key) => {
    const field = document.querySelector(`[name="${key}"]`);
    if (field) {
      field.value = value;
    }
  });
});

Related Web Tools

CSS Shape & Clip-Path Generator

Create custom CSS shapes and clip-paths visually for modern web designs.

Dynamic Theme Generator

Create and preview dynamic CSS themes with variables for light, dark, or custom color schemes.

Client-Side HTML Minifier

Minify HTML code in the browser instantly for faster website loading and SEO improvement.

Client-Side JS Obfuscator

Obfuscate JavaScript code in the browser for security and privacy without server-side processing.

Subtitle Styler

Customize subtitle files (SRT) with styles.

Compliance Documentation Generator

Generate free, basic template documents like Privacy Policies and Terms of Service for your business or website. Not a substitute for legal advice.

More Web Tools

Chronological Age Calculator

Calculate precise age (Years, Months, Days) for standardized testing and assessment reports.

Whack-A-Mole

Play a classic game of Whack-A-Mole.

Flip a Coin

A simple, interactive tool to flip a virtual coin.

Decision Roulette

A fun, interactive wheel spinner to help you make random choices.

Viewport Scroll Spy Generator

Track scroll positions and highlight active sections on your web pages easily.

Emoji Picker Widget Generator

Add a customizable emoji picker to your web forms or chat applications instantly.

Form Field Auto-Filler Generator

Automatically prefill your web forms using URL params or localStorage for testing and marketing.

CSS Shape & Clip-Path Generator

Create custom CSS shapes and clip-paths visually for modern web designs.

Dynamic Theme Generator

Create and preview dynamic CSS themes with variables for light, dark, or custom color schemes.