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Fiverr Pro
English
$
USD
I will build a custom interactive calculator or web tool for your business
WestLane Studio
About this gig
Most "custom tools" on here are a form that just emails you the answer. Mine actually do the maths, live, in front of your customer. I build small interactive tools quote calculators, cost splitters, planners, intake forms as a single file. Open it and it works. No sign-up, no plugin, no "please wait while we load." Your customer types a number, sees a result, done. You keep it forever. No monthly fee creeping in six months from now. No platform that shuts down and takes your tool with it. It's yours the day I deliver it. I ask one question before I build anything: what should this actually calculate, and what should it never get wrong? Get that right, and everything else the design, the polish is easy. Got a spreadsheet that only makes sense to you? A price list that changes depending on ten different factors? A form your team fills in wrong every single time? That's exactly what I fix. Message me with what it needs to do. I'll tell you honestly if it's a good fit and if it is, you'll have a working tool, not a promise.
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 WestLane Studio
WestLane Studio
I will build a live interactive tool that calculates, tracks or scores for your
- FromUnited Kingdom
- Member sinceJul 2026
Languages
English
Static templates only get you so far. I build the tools that actually do the work — calculators that compute, planners that track, quizzes that score, dashboards that update. Everything delivered as a single clean HTML file: no installs, no subscriptions, no bloated software. Just open it and it works.
If you've got a repetitive task, a client-facing tool, or an idea for something interactive on your site, tell me what it needs to do and I'll build it — tested properly, working first time.
UK-based. I reply fast, I don't miss deadlines, and I don't hand over anything I wouldn't use myself.
FAQ
Do I need to install anything to use the tool?
No. It's a single file that opens in any web browser — Chrome, Safari, Edge, whatever you use. No installs, no accounts, no plugins.
Can it match my branding — colours, logo, fonts?
Yes. Send me your brand colours and logo (or a link to your website) and I'll style the tool to match.
Will it work on mobile?
Yes, every tool is built to work on phone, tablet and desktop.
What if I'm not sure exactly what I need built?
Message me before ordering. Describe the problem in plain terms and I'll tell you honestly whether it's a good fit and how I'd approach it.
Can you connect the tool to my email list or take payments through it?
In some cases, yes — message me with details before ordering so I can confirm it's possible for your setup.
What do I actually receive at the end?
One HTML file. You can open it locally, host it on your website, or send it to your team or customers directly.
What if I need changes after delivery?
Each package includes a set number of revisions (see package details above). Let me know what needs adjusting and I'll get it sorted within that.
