Free Embeddable Tool Widgets
Add free calculator widgets to your website — no coding required. Just copy the embed code and paste it into your HTML.
Last updated: June 2026
- ✅ Free forever
- ✅ Mobile responsive
- ✅ Dark mode aware
- ✅ No ads shown in widgets
- ✅ Privacy-first (no data collected)
BMI Calculator
Let visitors check their Body Mass Index with metric or imperial units and an instant healthy-range readout.
Full tool: /tools/health/bmi/
Mortgage Calculator
A monthly mortgage / EMI estimator — enter loan amount, rate and term to see the payment.
Full tool: /calculator/mortgage/
Age Calculator
Work out an exact age in years, months and days from a date of birth.
Full tool: /tools/date/age-calculator/
Currency Converter
Convert between major world currencies with editable reference rates.
Full tool: /calculator/international/
CGPA Calculator
Convert CGPA to a percentage — handy for student and university sites.
Full tool: /tools/education/cgpa/
GST Calculator
Add or remove GST with CGST + SGST split — useful for Indian business and invoicing sites.
Full tool: /calculator/gst/
PPF Calculator
Show PPF maturity and interest at 7.1% p.a. for any yearly investment and tenure.
Full tool: /calculator/ppf/
Tip Calculator
Calculate the tip and split a bill between any number of people, with quick presets.
Full tool: /calculator/tip/
Sleep Calculator
Best wake-up times based on 90-minute sleep cycles, from right now.
Full tool: /tools/health/sleep-calculator/
Loan Eligibility
Estimate the maximum home, car or personal loan from a monthly salary.
Full tool: /calculator/loan-eligibility/
Budget Calculator
Compare needs, wants and savings against the 50/30/20 rule with simple bars.
Full tool: /calculator/budget/
No ads inside widgets
No ads are shown inside embedded widgets. The embed pages have no ad scripts. This is compliant with advertising-network policies.
Attribution
All widgets include a subtle "Powered by CrispToolHub" link. This is required and cannot be removed — it's what keeps the widgets free to embed.
Embeddable calculators for any website.
If you run a blog, a niche site or a business page, an interactive calculator keeps visitors engaged and gives them a reason to stay. CrispToolHub's embeddable widgets let you drop a polished, working tool straight into your page with a single line of HTML — no plugins, no JavaScript build step and no account. Copy the iframe snippet for the widget you want, paste it where you'd like the tool to appear, and you're done.
Each widget is a self-contained, lightweight version of one of our most popular tools: a BMI calculator for health and fitness sites, a mortgage calculator for property and finance pages, an age calculator, a currency converter, and a CGPA-to-percentage converter for student and university sites. They're mobile responsive, follow the visitor's light or dark theme, and load only the small amount of logic each tool needs.
Just as importantly, the widgets are clean and private. They show no ads, collect no visitor data, and run every calculation locally in the browser — nothing your visitors type is sent anywhere. The only branding is a small "Powered by CrispToolHub" credit beneath each tool, which is required and links back to the full tool. Pick a widget above, copy its code, and add a free interactive calculator to your site in under a minute.
FAQ
Frequently asked questions
Is it free to embed these widgets?
Yes — every widget is free to embed on any website or blog, with no sign-up, no API key and no usage limits. Just copy the iframe code and paste it into your page's HTML. The widgets stay free forever; the only requirement is keeping the small 'Powered by CrispToolHub' credit link that appears beneath each one.
How do I add a widget to my website?
Copy the iframe snippet for the widget you want using the Copy button on its card, then paste it into your site's HTML wherever you'd like the tool to appear — in a blog post, a page editor, or a custom HTML block. The widget loads in an inline frame, so it works on any platform that allows iframes, including WordPress, Wix, Squarespace and plain HTML sites.
Do the embedded widgets show ads?
No. The embed pages contain no ad scripts, so no advertising is ever shown inside the widgets on your site. This keeps them clean for your visitors and is compliant with advertising network policies — the widgets run only the minimal calculator logic and nothing else.
Is my visitors' data collected?
No. The widgets are privacy-first: all calculations run entirely in the visitor's browser, and no personal data — weights, dates, loan amounts or anything else entered — is collected, stored or sent to a server. The tools are also dark-mode aware and fully mobile responsive.
Can I remove the 'Powered by CrispToolHub' link?
No. Each widget includes a small, unobtrusive 'Powered by CrispToolHub' credit link that must stay in place — it's how the widgets remain free to embed. Beyond keeping that credit, you're free to use the widgets on as many pages and sites as you like.