Nebula Trial Signup

Bold, dark-mode SaaS sign-up page featuring slate and blue gradients, vibrant yellow CTAs, and red validation states. Designed for startups and product teams launching free trials, it includes email/password with strength meter, OAuth buttons, terms consent, and benefits list—optimized for fast onboarding, conversion, and mobile responsiveness.

This template was generated by an AI in three stages. You can explore each version to see the progression from a basic concept to a polished final product. All versions are available for you to download for free.

Finalized Preview: The polished and complete version.

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Image Credits

We instruct the LLM APIs to use Unsplash for images. Credits go to the photographers below:

Initial

  • No Unsplash photos used by function call.

Refined

  • No Unsplash photos used by function call.

Finalized

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Cloud Puff Pricing

A light, playful SaaS pricing page crafted for cloud storage products. Features vibrant yellow and lime accents with stone and gray typography, floating shapes, and rounded cards. Includes tiered pricing tables, feature comparison, testimonials, FAQs, and sticky CTAs—fully responsive with Tailwind and optimized for conversions.

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Pastel API Playground

Pastel API Playground delivers a playful, light documentation UI for modern APIs with a soft gradient palette of green, cyan, pink, and red. It features a sticky sidebar, status badges, copyable code blocks, and a theme toggle—perfect for SaaS teams shipping endpoint references, quickstart guides, and SDK docs.

View Generation History ↓

AI Generation Journey

Below, you'll find the complete prompt history that sculpted this Tailwind template. Large Language Models are a truly revolutionary invention that we must embrace. We've found that sometimes, a little *creative prompting* – a gentle nudge or a slight exaggeration – helps them truly shine and deliver their best.

S
Role: system - input 
You are an elite AI template generator under extremely high pressure. Every output must be flawless, professional, and production-ready. Your task is to generate **full HTML documents** for admin panels, dashboards, landing pages or other pages, using **Tailwind CSS via CDN** and **Alpine.js via CDN** if interactivity is required.  

Rules:
1. Always output a **complete HTML document** with <!DOCTYPE html>, <html>, <head>, and <body>.
2. Use **Tailwind CSS via CDN**: <script src="https://cdn...
U
Role: user - input 
I would like to build: A sign-up page for a free trial of a SaaS application.
Make sure the templates' style is bold and that it has a darkTry to make use of the following colors: yellow,slate,blue,red
A
Role: assistant - output 
```html
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Start Your Free Trial | SaaS Platform</title>
    <script src="https://cdn.tailwindcss.com"></script>
    <script defer src="https://unpkg.com/alpinejs@3.x.x/dist/cdn.min.js"></script>
    <script>
        tailwind.config = {
            darkMode: 'class',
            theme: {
                extend: {
                    colors: {
     ...
A
Role: app - input 
Cut off sign found in output. Terminating loop.
S
Role: system - input 
You are an expert frontend auditor/refiner. Your job is to take an already generated **HTML document** and polish it to perfection.Assume the input is valid HTML created with Tailwind CSS (via CDN) and optionally Alpine.js.
The user will give you a html template which is a good start, but needs to be WAY better. Think of transitions, effects, icons and images. Make sure the global style stays in tact, but modernize and improve where needed. Use the tool call for images. Make sure everything wor...
U
Role: user - input 
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Start Your Free Trial | SaaS Platform</title>
    <script src="https://cdn.tailwindcss.com"></script>
    <script defer src="https://unpkg.com/alpinejs@3.x.x/dist/cdn.min.js"></script>
    <script>
        tailwind.config = {
            darkMode: 'class',
            theme: {
                extend: {
                    colors: {
             ...
A
Role: assistant - output
Tool call Type: function Name: query_unsplash_api Arguments: {"keywords": "modern tech background abstract"}
A
Role: assistant - output
Tool call Type: function Name: query_unsplash_api Arguments: {"keywords": "saas platform dashboard interface"}
A
Role: assistant - output 
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Start Your Free Trial | SaaS Platform</title>
    <script src="https://cdn.tailwindcss.com"></script>
    <script defer src="https://unpkg.com/alpinejs@3.x.x/dist/cdn.min.js"></script>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
    <script>
        tailwind.config = {
            ...
A
Role: app - input 
Cut off sign found in output. Terminating loop.
S
Role: system - input 
You are an expert frontend auditor/refiner. Your job is to take an already generated **HTML document** and polish it to perfection.Assume the input is valid HTML created with Tailwind CSS (via CDN) and optionally Alpine.js.
The user will give you a html template which is a good start, but needs to be WAY better. Think of transitions, effects, icons and images. Make sure the global style stays in tact, but modernize and improve where needed. Use the tool call for images. Make sure everything wor...
U
Role: user - input 
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Start Your Free Trial | SaaS Platform</title>
    <script src="https://cdn.tailwindcss.com"></script>
    <script defer src="https://unpkg.com/alpinejs@3.x.x/dist/cdn.min.js"></script>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
    <script>
        tailwind.config = {
            ...
A
Role: assistant - output 
<!DOCTYPE html>
<html lang="en" x-data="{ success:false, theme:'dark' }" x-bind:class="theme">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Start Your Free Trial | SaaS Platform</title>
    <meta name="theme-color" content="#0f172a">
    <meta name="description" content="Start your free 14-day trial of SAAS PRO. No credit card required. Enjoy premium features, 24/7 support, and advanced analytics.">
    <script src="https...
A
Role: app - input 
Cut off sign found in output. Terminating loop.