Histogram CSV Data Visualizer
Create a histogram from CSV data online. Analyze the distribution of a numeric column. Upload your CSV, select the column, and export as PNG or SVG.
CSV to Histogram — Free Online Tool
A histogram shows the frequency distribution of a single numeric column — how many rows fall into each value range (bin). It is the fastest way to understand whether data is normally distributed, skewed, bimodal, or has outliers.
Unlike a bar chart, a histogram needs only one column. Select the numeric column to analyze and the chart automatically bins the values into equal-width intervals and counts rows per bin.
Frequently asked questions
Can I control the number of bins?
Bin count control is on the roadmap. Currently Plotly automatically chooses an appropriate number of bins based on the data range and count.
What is the difference between a histogram and a bar chart?
A bar chart compares discrete categories. A histogram shows the distribution of a continuous numeric variable — the X axis is a value range, not a category name.
Next step
Charting a CSV export means the data already went stale.
Every refresh is another export, another upload, another chart. Connect the source itself to your AI agent with Sequel and ask for the chart against live data.
Ask your agent
“Chart weekly signups for the last quarter and call out the inflection points.”