This tool runs locally in your browser.
Results are estimates based on your input only; entered values and result contents are not stored by BoringToolsKit.
Your inputs and results stay in this browser. This page may send privacy-bounded aggregate interaction events described in Privacy; it does not send your entered values or result contents.
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What does this calculator estimate?
Check keyword density and top phrases in text.
How this calculator works
Formula
Worked example
Assumptions to verify
Frequently asked questions
What is a keyword density calculator and how does it work?
A keyword density calculator analyzes your text and shows how frequently a specific keyword or phrase appears as a percentage of the total word count. Our tool runs entirely in your browser , paste your text, enter your target keyword, and instantly see the density percentage without uploading anything to a server.
Do I need to create an account or sign up to use this keyword density calculator?
No. This keyword density calculator is completely free, requires no signup, and works directly in your browser. Your text is never sent to any server or stored anywhere , all processing happens locally on your device, ensuring full privacy and anonymity.
Is this keyword density calculator safe and private?
Yes. Because the tool runs entirely client-side in your browser, your content is never transmitted, uploaded, or stored on any external server. No data is collected, no accounts are needed, and no personal information is required , your text stays entirely under your control.
Privacy: Inputs and results stay in this browser. Any future sponsored recommendation or advertisement will be clearly labeled and kept separate from the calculation.
Keyword Density Checker. BoringToolsKit, 2026-08-31 (accessed 2026-08-31). https://boringtoolskit.com/kw-density/