Fastest online chart generator
FastChart: paste your data.
Beautiful chart in one second.
FastChart is a bar chart creator, line graph generator and histogram builder in one editor — plus pie, donut, scatter, radar and 19 more types. Paste CSV, Excel, JSON or a Markdown table. No signup, no configuration, nothing uploaded.
1 s
to first chart
0
learning curve
0
logins required
Why it is faster
Other tools make you configure a chart. FastChart just draws it.
Competitors ask you to create a project, choose a chart, upload a CSV, map the X axis and then press Generate. In FastChart, Ctrl+V is the whole workflow.
- 1 sPaste to chartDelimiter, header row and column types are detected automatically. No wizard, no import step.
- 0Learning curveOne text box, one preview. Everything you change updates live — there is no Generate button.
- 0SignupsNo account, no watermark, no export limit. Your data is parsed in the browser and never uploaded.
- 5Export formatsHigh-resolution PNG, vector SVG, print-ready PDF, transparent background, or copy straight to clipboard.
Chart types
Popular chart types
All 26 FastChart types have their own dedicated editor page with sample data, use cases and export options — from the bar chart creator to the line graph generator and the histogram builder.
- Bar Chart CreatorPaste any two-column list of categories and values. The bar chart renders while you type — no wizard, no configuration, no account.
- Line Graph GeneratorBuilt for time series. Paste dates, years, months or quarters in the first column and any number of value columns after it.
- Histogram BuilderPaste one column of raw numbers. FastChart bins them automatically using Sturges’ rule, and you can override the bin count with a single slider.
- Pie Chart MakerTwo columns are all it takes: a label and a value. Percentages are calculated for you and rendered directly on the slices.
- Donut Chart MakerA donut chart is a pie chart with the centre cut out — perfect for dashboards where the middle holds the headline total.
- Scatter Plot MakerPaste two numeric columns — X first, then Y. FastChart detects that both columns are numeric and switches to a scatter plot automatically.
- Radar Chart MakerAlso called a spider chart. Put the dimension names in the first column and one column per item you want to compare.
- Area Chart MakerAn area chart is a line chart with the region below filled in — good for showing volume over time and cumulative totals.
Supported formats
Paste from anything
FastChart handles delimiters, quoted fields, header rows and Markdown pipes automatically.
- CSV to ChartPaste raw CSV text or drop a .csv file. Delimiters, quoted fields and header rows are detected automatically.
- Excel to ChartSelect cells in Excel, press Ctrl+C, then paste here. Copied spreadsheet cells arrive as tab-separated values, which FastChart reads natively.
- JSON to ChartPaste an array of objects, an array of numbers, or a flat key–value object. Keys become series and values become data points.
- Markdown Table to ChartGreat for tables produced by ChatGPT, GitHub READMEs or Notion. Pipes and the separator row are handled for you.
- TSV to ChartTab-separated values are what your clipboard holds after copying from a spreadsheet or a database client. Paste them straight in.
- Google Sheets to ChartGoogle Sheets charts are hard to style and hard to export cleanly. Copy the range instead and get an export-ready chart here.
Examples
Worked examples with real data
Each FastChart example opens in a live editor with its dataset already loaded, plus notes on what the chart actually shows.
- Sales by regionA worked sales-by-region bar chart example with real numbers. Open it in the editor, swap in your own data and export PNG, SVG or PDF free.
- Monthly revenue trendA monthly revenue line chart example with twelve months of real-looking data. Edit it in the browser and export PNG, SVG or PDF free.
- Test score distributionA histogram example built from 60 real exam scores. See the distribution shape, adjust the bin count and export PNG, SVG or PDF free.
- Market shareA market share pie chart example whose slices sum to 100%. Edit the shares in the browser and export PNG, SVG or PDF free.
- Ad spend vs conversionsA scatter plot example showing ad spend against conversions, with a least-squares trend line. Edit and export PNG, SVG or PDF free.
- Product comparisonA radar chart example comparing three products across six scored attributes. Edit in the browser and export PNG, SVG or PDF free.
About the tool
What is FastChart?
FastChart is a free online chart generator built around one idea: pasting data should be the entire workflow. Copy cells from Excel or Google Sheets, a CSV export, a JSON API response or a Markdown table, paste it into the FastChart editor, and the right chart renders in about a second. It works as a bar chart creator, a line graph generator and a histogram builder, and it covers 26 chart types in total — including pie, donut, scatter, radar, treemap, heatmap and sankey.
Unlike spreadsheet charts or heavyweight BI tools, FastChart never asks you to create an account, start a project or upload a file. Everything is parsed and rendered locally in your browser, so your data never leaves your device. When the chart looks right, export it as a high-resolution PNG, a vector SVG or a print-ready PDF — with no watermark and no daily limit. That is all FastChart does, which is exactly why it is fast.
FAQ
Frequently asked questions about FastChart
- Is FastChart really free?
- Yes. Every FastChart chart type and every export format is free, with no account, no watermark and no daily limit.
- Do I need to sign up or upload a file?
- Neither. Paste your data into the FastChart editor — or drop a file onto it — and the chart renders locally in your browser. Nothing is sent to a server.
- Which data formats can I paste?
- CSV, TSV, Excel and Google Sheets cell ranges, JSON arrays and objects, Markdown tables, space-separated text, and plain single-column number lists.
- How does the chart type get chosen automatically?
- Simple deterministic rules, not AI. One numeric column becomes a histogram, two numeric columns become a scatter plot, date-like labels become a line graph, few categories with one value column become a pie chart, and several value columns across few rows become a radar chart. You can override the choice with one click.
- What export options are available?
- High-resolution 2x PNG, vector SVG, single-page PDF, transparent background, copy image to clipboard, and copy SVG source code.
- Can I use the charts commercially?
- Yes. The charts you create with FastChart are yours to use in reports, slides, articles and products without attribution.