For site owners

Embed a tool on your own site

Every tool below can be dropped into your page with one line of HTML. It is free, needs no signup and no API key, sets no cookies, and shows no ads to your readers.

The terms, in full

Free, for any site — commercial, personal, school, intranet. No licence to sign.
Nothing is collected from your visitors. The widget sets no cookies and shows no advertising.
Please keep the credit line underneath. It is the only thing we ask in return, and it is what makes giving these away worth doing.
It stays current. The widget loads from recatools.com, so fixes and updated figures reach your page without you touching the code again.

Asian BMI Calculator

Calculate your BMI instantly using ASEAN health thresholds — metric and imperial.

Open the full tool 680 × 1250 px

<iframe src="https://recatools.com/embed/bmi-calculator/" title="Asian BMI Calculator by RECATOOLS" width="680" height="1250" loading="lazy" style="width:100%;max-width:680px;height:1250px;border:1px solid #e2e4e8;border-radius:10px;"></iframe>
<p style="font:13px/1.5 system-ui,sans-serif;color:#64748b;margin:6px 0 0;"><a href="https://recatools.com/bmi-calculator/">Asian BMI Calculator</a> by RECATOOLS</p>

CPF & EPF Compound Interest Calculator

See how your money grows over time — with compound interest, CPF, and investment planning.

Open the full tool 680 × 1940 px

<iframe src="https://recatools.com/embed/compound-interest-calculator/" title="CPF &amp; EPF Compound Interest Calculator by RECATOOLS" width="680" height="1940" loading="lazy" style="width:100%;max-width:680px;height:1940px;border:1px solid #e2e4e8;border-radius:10px;"></iframe>
<p style="font:13px/1.5 system-ui,sans-serif;color:#64748b;margin:6px 0 0;"><a href="https://recatools.com/compound-interest-calculator/">CPF &amp; EPF Compound Interest Calculator</a> by RECATOOLS</p>

LLM Cost Calculator

Estimate GPT, Claude & Gemini API costs from token counts and volume

Open the full tool 680 × 770 px

<iframe src="https://recatools.com/embed/llm-cost-calculator/" title="LLM Cost Calculator by RECATOOLS" width="680" height="770" loading="lazy" style="width:100%;max-width:680px;height:770px;border:1px solid #e2e4e8;border-radius:10px;"></iframe>
<p style="font:13px/1.5 system-ui,sans-serif;color:#64748b;margin:6px 0 0;"><a href="https://recatools.com/llm-cost-calculator/">LLM Cost Calculator</a> by RECATOOLS</p>

QR Code Generator

Generate QR codes for URLs, text, Wi-Fi, vCard, and more

Open the full tool 680 × 800 px

<iframe src="https://recatools.com/embed/qr-code-generator/" title="QR Code Generator by RECATOOLS" width="680" height="800" loading="lazy" style="width:100%;max-width:680px;height:800px;border:1px solid #e2e4e8;border-radius:10px;"></iframe>
<p style="font:13px/1.5 system-ui,sans-serif;color:#64748b;margin:6px 0 0;"><a href="https://recatools.com/qr-code-generator/">QR Code Generator</a> by RECATOOLS</p>

WCAG Contrast Checker

WCAG 2.1 AA/AAA accessibility

Open the full tool 680 × 1450 px

<iframe src="https://recatools.com/embed/wcag-contrast-checker/" title="WCAG Contrast Checker by RECATOOLS" width="680" height="1450" loading="lazy" style="width:100%;max-width:680px;height:1450px;border:1px solid #e2e4e8;border-radius:10px;"></iframe>
<p style="font:13px/1.5 system-ui,sans-serif;color:#64748b;margin:6px 0 0;"><a href="https://recatools.com/wcag-contrast-checker/">WCAG Contrast Checker</a> by RECATOOLS</p>

Daily Stratagem Puzzle

One of the 36 Stratagems a day — five guesses

Open the full tool 680 × 1770 px

<iframe src="https://recatools.com/embed/daily-stratagem-puzzle/" title="Daily Stratagem Puzzle by RECATOOLS" width="680" height="1770" loading="lazy" style="width:100%;max-width:680px;height:1770px;border:1px solid #e2e4e8;border-radius:10px;"></iframe>
<p style="font:13px/1.5 system-ui,sans-serif;color:#64748b;margin:6px 0 0;"><a href="https://recatools.com/daily-stratagem-puzzle/">Daily Stratagem Puzzle</a> by RECATOOLS</p>

Holland Code Career Test

Your 3-letter RIASEC career code, plus all six interest scores — 24 questions

Open the full tool 680 × 1950 px

<iframe src="https://recatools.com/embed/holland-code-career-test/" title="Holland Code Career Test by RECATOOLS" width="680" height="1950" loading="lazy" style="width:100%;max-width:680px;height:1950px;border:1px solid #e2e4e8;border-radius:10px;"></iframe>
<p style="font:13px/1.5 system-ui,sans-serif;color:#64748b;margin:6px 0 0;"><a href="https://recatools.com/holland-code-career-test/">Holland Code Career Test</a> by RECATOOLS</p>

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