Keyword Density Checker

How Keyword Density works

See your most repeated words and two- or three-word phrases with counts and density percentages. Spot stuffing early. Everything happens inside this page: the tool reads your input, runs the calculation or conversion locally, and hands the result back to you. Nothing is transmitted, because there is no backend to transmit it to.

That design choice is deliberate. Most free tool sites upload your files to a server, process them there, and quietly keep a copy. Toolcin cannot do that — the site is a set of static files. If your connection dropped the moment the page finished loading, every tool would still work.

What density measures

Density is the number of times a term appears divided by the total word count, shown as a percentage. The tool can count single words, two-word phrases or three-word phrases, and optionally ignores common stop words so that “of the” does not dominate the list.

The phrase modes are the useful ones: a page can mention “email” twenty times without ever using “email marketing”, and the two-word view is what reveals whether the target phrase is actually present.

There is no correct percentage

The old advice of 2–3% came from a period when search engines counted keywords. Modern ranking does not work that way, and writing to a percentage produces prose that reads like it was written to a percentage.

Use the number as a diagnostic, not a target. If a term you care about does not appear at all, that is a signal. If it appears twice as often as any synonym, that is a signal too.

The measurement trap

Stemming is not applied, so “convert” and “converting” count separately. A page that uses both forms evenly will show half the density for each, even though a reader sees one concept.

For a fair view, run the multi-word mode on the exact phrase you are targeting and accept that inflections will split the count.

Good to know

• Works offline once loaded, including on flights and in locked-down networks.
• No file size limit beyond your device's own memory.
• Free to use, with no account and no usage counter.
• Results are produced locally, so they are not logged or shared with anyone.

Questions