Count how often each value appears in a chosen CSV column, with percentages, a mini bar visual and a copyable results table.. Frequency Counter is a free online tool from the ToolsRift Charts & Data Tools collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.
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How to use Frequency Counter
Load your CSV, choose the column to count, set case and trim handling and how many top values to show, then read the frequency table and copy it.
Frequently asked questions
What does the frequency table show?
Every distinct value in the chosen column with how many times it occurs, its share of the total as a percentage, a running cumulative percentage and a small bar so you can see the shape of the distribution without building a chart.
Can I group values that only differ by case or spacing?
Yes. The case-insensitive and trim options fold values like 'Email', 'email' and ' email ' into one bucket, which is essential when counting free-text fields such as channels, tags or survey answers.
What about long-tail values?
You can limit the table to the top N values and the rest are grouped into a single 'other' line with its own count and percentage, so a column with thousands of unique values still gives a readable summary.
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