Free Embeddable Calculators
for Your Website
Add professional financial tools to your blog or website in seconds. No signup required. Fully responsive and lightning fast.
Mortgage Calculator Mini
FREECompact mortgage payment calculator. Enter loan amount, interest rate, and term to instantly see monthly payments.
BMI Calculator Mini
FREEEnter height and weight to get BMI score with color-coded category indicator (underweight, normal, overweight, obese).
Compound Interest Mini
FREEVisualize the power of compound interest. Enter principal, monthly contribution, rate, and years to see growth.
Tip Calculator Mini
FREECalculate tips instantly. Enter bill amount, choose tip percentage, split between people, and see the breakdown.
Currency Converter Mini
FREESimple USD to other currencies converter. Supports EUR, GBP, JPY, CAD, AUD, and more with live-ish rates.
Loan Payment Mini
FREEEnter any loan amount, interest rate, and term to calculate your monthly payment and total interest paid.
Percentage Calculator Mini
FREEQuick percentage calculations: What is X% of Y? Useful for discounts, taxes, tips, and everyday math.
Net Worth Mini
FREESimple assets minus liabilities calculator. Enter your totals and see your net worth instantly.
Savings Goal Mini
FREEFind out how long it takes to save for any goal. Enter target amount, monthly savings, and optional interest rate.
Unit Converter Mini
FREEConvert between common units: length, weight, temperature, and volume. Compact and easy to use.
Age Calculator Mini
FREEEnter a birthdate and instantly see the exact age in years, months, and days. Great for blogs and profile pages.
Countdown Timer Mini
FREECountdown to any date. Perfect for product launches, events, holidays, and deadlines on your website.
How It Works
Choose a Widget
Browse our collection of 12 professional mini-calculators designed for websites.
Customize
Pick your colors, border style, and theme to match your website's design.
Embed
Copy the embed code and paste it into your website. That's it!
Why Use NexTool Widgets?
100% Free
No cost, no signup, no limits. Use on as many sites as you want.
Fully Responsive
Looks great on desktop, tablet, and mobile devices.
Lightning Fast
Lightweight widgets that load instantly. No impact on your site speed.
SEO Friendly
Adds interactive value to your pages. Google loves engaging content.
Need White-Label Widgets?
Upgrade to Pro to remove the "Powered by NexTool" branding and get custom styling options. Perfect for agencies and businesses.
Upgrade to Pro - $9/moFrequently Asked Questions
Are these widgets really free?
Yes! All 12 mini-widgets are completely free to embed on any website. No signup, no credit card, no limits.
Can I remove the 'Powered by NexTool' branding?
White-label widgets (without branding) are available on our Pro plan for $9/month. Free widgets include a small, unobtrusive attribution link.
Will the widgets slow down my website?
No. Widgets load inside a lightweight iframe and won't affect your page's load time or performance score.
Can I customize the look and feel?
Yes! You can customize the primary color, border radius, theme (light/dark), and width to match your site's design.
Do the widgets work on mobile?
Absolutely. All widgets are fully responsive and look great on any screen size.
How many websites can I use them on?
There's no limit. Use our widgets on as many websites as you want.
Loved by Website Owners
"The mortgage calculator widget increased my page engagement by 40%. So easy to embed!"
Sarah M.
Personal Finance Blogger
"I add NexTool widgets to all my client sites. Clean, fast, and the customization options are great."
James K.
Web Developer
"The BMI calculator widget fits perfectly into my articles. My readers love the interactivity."
Priya R.
Health & Wellness Blog