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Bar Chart Maker

Paste CSV or JSON and generate a customizable bar chart with axis labels, colors, legend, and PNG/SVG export

Bar Chart Maker
Paste category/value data and get an accessible bar chart with titles, axis labels, and PNG or SVG export.
CSV with header row. First column is label, second column is numeric value.
Monthly signups
Interactive preview — hover for tooltips. Export at any time.
Settings & export
Customize labels and colors, then export as PNG, SVG, or JSON.
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What is Bar Chart Maker

Last reviewed:

CSV (Comma-Separated Values) is a simple tabular text format used to exchange spreadsheet-like data between databases, apps, and analytics tools.

A bar chart plots a numeric value against a discrete category using rectangular bars. It is the default chart for comparing counts, totals, or rates across categories such as months, products, countries, or campaigns.

Bar Chart Maker takes paste-friendly CSV or JSON, renders an interactive bar chart in your browser, and exports it as PNG or SVG that is ready for docs, slides, and reports.

Why use it

  • Skip a spreadsheet or design tool when you just need a clean bar chart for a doc or slide.
  • Paste real CSV from a query result and get a live preview without any setup.
  • Export PNG for docs and SVG for print or vector-perfect embedding.
  • Keep data in your browser — nothing is uploaded to a server.

Features

  • CSV and JSON paste
  • PNG export (2× rasterization)
  • SVG export
  • Configurable axis labels
  • 5 built-in color palettes
  • Legend and grid toggles
  • Client-side rendering

How to use Bar Chart Maker

  1. Paste data. Paste CSV or JSON label/value rows into the editor.
  2. Label axes. Set the chart title, X label, and Y label.
  3. Pick a palette. Choose a palette and toggle legend or grid as needed.
  4. Export. Download PNG for docs or SVG for vector reuse.

Example (before/after)

CSV input

label,value
Jan,42
Feb,58
Mar,71
Apr,49
May,83
Jun,65

Rendered bar chart

Bar chart with 6 bars labeled Jan–Jun, heights 42–83, rendered as SVG with axis labels and legend ready for PNG export.

Common errors

Non-numeric value

One of the rows has a value column that cannot be parsed as a number.

Fix: Remove units (e.g., $, %, ms) and thousand separators so the value column is plain numbers.

Header row missing

The tool treats a fully numeric first row as data, which may shift your labels.

Fix: Add a header row like `label,value` as the first line so columns are detected correctly.

FAQ

How much data can I chart?

There is no hard cap, but we recommend under 200 bars for readability. Above that you should consider a line chart or small multiples.

Can I export an image?

Yes — both PNG (rasterized from SVG at 2× for crisp display) and raw SVG are available.

Is my data uploaded?

No. Parsing and rendering happen entirely in your browser; nothing is sent to a server.

Can I change colors?

Yes. Pick from the indigo, teal, warm, cool, or mono palettes — each bar automatically uses a different shade for contrast.

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Related chart builders and data-prep tools: You can also browse the full Chart Makers category for more options.

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