Keyword Density Checker

The Keyword Density Checker analyzes any block of text and displays the frequency and percentage of each keyword, helping SEO professionals and content writers identify over-optimization, thin content, and missed keyword opportunities. It generates a styled Bootstrap 5 results card you can embed directly into reports or dashboards. Built for developers, SEOs, and content teams who need instant, dependency-free analysis.

Configuration

Content

Article / Page Content

Target Keyword or Phrase

Report Card Title

Page URL (optional)

Analysis Settings

Top Keywords to Display

Minimum Word Length (filter short words)

Show Progress BarsShow Total Word Count Summary

Design

Card Theme

Table Size

Accent Color

Keyword Badge Style

Card Border Radius (px)

Layout

Card Width

Show Report Footer

How to Use

1. Paste your content into the text area and enter the target keyword or phrase you want to analyze. 2. Adjust the display options: choose how many top keywords to show, set the minimum word length to filter stop words, and pick your accent color and card style. 3. Preview the generated Bootstrap 5 results card showing keyword frequency, density percentage, and a visual progress bar for each term. 4. Copy the HTML output and drop it into any Bootstrap 5 project, report page, or CMS template.

Why Use This Tool?

Building a keyword density UI from scratch means writing table markup, calculating percentages, styling progress bars, and handling edge cases for stop words — this tool does all of that in seconds and outputs clean, production-ready Bootstrap 5 HTML with zero third-party dependencies beyond the Bootstrap CSS you already use. It saves 30 to 60 minutes per report and produces consistent, professional output every time. SEO teams can generate branded density reports for clients without touching a line of code.

Frequently Asked Questions

What is the Keyword Density Checker?

The Keyword Density Checker is a free online tool that parses a block of text, counts word and phrase occurrences, and generates a Bootstrap 5 HTML card displaying keyword frequency and density percentages with visual progress bars.

How is keyword density calculated, and what percentage is ideal for SEO?

Keyword density is calculated by dividing the number of times a keyword appears by the total word count, then multiplying by 100. For example, a keyword appearing 5 times in a 500-word article has a density of 1%. Most SEO practitioners target a density between 0.5% and 2% for the primary keyword. Above 3% to 4% risks being flagged as keyword stuffing by search engines. This tool displays exact percentages so you can spot both under-use and over-use at a glance.

Is it free?

Yes — the Keyword Density Checker is completely free with no signup required. Built by the CanvasBuilder.co team.