I will build a custom interactive calculator or web tool in HTML for your website


About this gig
Are you looking for a custom interactive tool that works directly on your website no plugins, no subscriptions, no coding skills needed? I build clean, professional web calculators and interactive tools delivered as a single HTML file. Your visitors use it instantly. You embed it in one line of code. WHAT I BUILD - ROI and marketing calculators - Pricing and quote generators - Mortgage and loan calculators - Lead qualification quizzes - Break-even and profit tools - Fitness, health and wellness calculators - Budget planners and trackers - Any custom business tool if you can describe it, I can build it WHAT YOU GET - 1 clean HTML file (everything included no external dependencies) - Mobile-responsive design that works on any device - Your brand colors applied (Standard and Premium) - Simple embed instructions 2 lines of code for any website - 100% ownership no licensing fees, no monthly costs
WHY CLIENTS CHOOSE ME - Fast delivery usually within 24 to 48 hours - Professional design not a generic template - Clear communication and quick responses - Works on WordPress, Squarespace, Wix, Webflow, Shopify guaranteed.
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Domenico
Web tools that convert visitors into leads fast delivery, clean code
- FromItaly
- Member sinceFeb 2023
- Avg. response time1 hour
Languages
English, Italian
My Portfolio
FAQ
Does the tool work on any website?
What if I need changes after delivery?
Do I need to pay for hosting or a subscription?
No. You own the file completely. No monthly fees, no third-party accounts, no ongoing costs of any kind.
What is the difference between the three packages?
Basic at $80 covers 1 tool with up to 8 inputs and email capture. Standard at $140 adds brand colors, interactive charts, and PDF export. Premium at $190 includes multi-step logic, unlimited inputs, full branding, and priority delivery.
Can you match my brand colors and fonts?
Yes. Brand colors are included in Standard and Premium. For Basic, you can add custom branding as a gig extra for $30. Just share your hex codes or website URL.
Can the tool collect user emails?
Yes. Email capture is included in all three packages. I connect it to Formspree so submissions arrive directly in your inbox at no extra cost.
What if I need more revisions than included?
Basic includes 2 revisions, Standard 3, Premium 5. Additional revisions are available as a gig extra for $15 each.
How do I tell you what I need?
Message me before ordering with: what inputs the user fills in, what results they should see, and any branding details. The more specific you are, the faster I deliver.
Can you deliver faster than the standard time?
Yes. Extra fast delivery is available as a gig extra — 1 day for Basic and Standard, 1 day for Premium. Prices start at $25 depending on the package.

