For teachers, the Virtual Science Teachers pie chart maker is free, loads no ads and adds no credit line, but it saves PNG only and stops at 12 slices. Pie Chart Generator adds pasted spreadsheet data, CSV upload and SVG and PDF files, with a small credit line on free downloads.
By Ryan Doyle, who built Pie Chart Generator. Updated November 9, 2026.
Of 17,002 charts downloaded from our maker between January 29 and October 23, 2026, 13.3% were SVG and 18.6% PDF, two formats the Virtual Science Teachers maker does not save (method). We loaded its pie chart maker and read its page code and membership terms on November 9, 2026, and checked our own code the same day. A fact we could not read is left out.
Virtual Science Teachers facts read on its own pages and page code on November 9, 2026; ours from our code the same day.
| Feature | Pie Chart Generator | Virtual Science Teachers |
|---|---|---|
| Price of the pie chart maker | Free; Pro is from $1 a month | Free to use (source) |
| Paid membership | Pro from $1 a month, $10 a year or $25 once | Teacher Membership: $5.99 a month or $49.99 a year after a 30-day trial that needs a payment method (source) |
| Account needed for the chart | No | No; the maker opened with no log-in (source) |
| Ads on the page | None | None found in its page code (source) |
| Credit line on downloads | Yes: a small 'Made with pie-chart-generator.com' line; Pro from $1 a month removes it | None found in its drawing code (source) |
| Download formats | PNG, JPEG, SVG, PDF | PNG only, from a Save as Image button (source) |
| Most slices | No limit set by the editor | 12 (source) |
| Data entry | Type, paste or upload a CSV | One row per slice: label, value and color; no paste or CSV (source) |
| Percent labels | Yes, on slices big enough to hold them | Yes, on slices big enough to hold them, rounded to add up to 100.0 (source) |
| Donut, 3D or exploded | Yes; 3D tilts the on-screen chart and downloads are flat | No control for any of them (source) |
| Teaching help on the page | Guides on separate pages | Instructions and Key Vocabulary buttons on the maker (source) |
| Other graph makers | Bar and line | Line, bar, multiple data sets and scatter plot (source) |
Pick Pie Chart Generator over Virtual Science Teachers if your data is already in a spreadsheet, or you need a file other than PNG.
The Virtual Science Teachers maker takes one row per slice. We take two columns pasted from Google Sheets or Excel, or a CSV upload.
Its Save as Image button makes a PNG. We also save JPEG, SVG and PDF, and those last two made up 31.9% of the 17,002 charts downloaded from our maker between January 29 and October 23, 2026.
The form has no control for either. We make donut charts and exploded pie charts, and print the percentage on each slice that has room for it.
Pick Virtual Science Teachers if you want a clean PNG for free, or a tool built around a science lesson.
We found no credit line in its drawing code. Our free downloads carry a small one, and removing it costs $1 a month with Pro.
The maker has Instructions and Key Vocabulary buttons, and the site adds bell ringers, virtual labs and graph skill builders for science classes. We do not make lesson material like that.
Its Graph Makers menu includes a scatter plot and multiple data set versions of its line and bar makers. We make pie, donut, bar and line.
Its code rounds slice percentages so they always add up to exactly 100.0, which saves a question from a student checking the math.
Type or paste your numbers, then download PNG, JPEG, SVG or PDF.