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Sign in to get your referral linkGraphPad Prism costs hundreds of dollars per seat and locks your analysis into a proprietary format. Plotivy is completely free, runs in any browser, and gives you the Python source code for every figure you create. If you are comparing Prism with other tools, see our GraphPad Prism vs Excel guide and full scientific plotting software ranking.
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| Feature | Plotivy | GraphPad Prism |
|---|---|---|
| Cost | Free - no tiers, no hidden limits | $200-$600/yr per seat |
| Natural Language Input | Describe your figure in plain text | Manual GUI only |
| Python Source Code | Full code exported with every figure | Proprietary .prism format |
| Reproducibility | Python script runs anywhere | Tied to Prism license |
| Data Privacy | Zero data retention | Local software (files stay local) |
| Operating System | Any browser - Mac, Linux, Windows | Windows and Mac only |
| AI-Assisted Editing | Iterative via natural language | No |
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This is a classic Prism workflow recreated in pure Python: grouped bar chart + SEM error bars + significance stars from t-tests. You can adapt the same pattern for t-test visualization and multi-group ANOVA workflows.
Tip: Edit the code below - your changes render instantly.
Preparing preview
Running once automatically on first load
This is a safe playground for learning! Try changing:
Edit the code, run it, then open the full data visualization tool to continue with your own dataset.
Need distribution-first alternatives? Use violin plots or box-and-whisker plots when summary bars hide too much variation.
Nature, Science, and Cell now require reproducible analysis documentation. A .prism file does not satisfy this requirement - it is opaque, version-locked, and useless without the software. A Python script does. Every figure generated in Plotivy comes with the complete source code that produced it.
Practical example: Upload your data, describe the figure in plain language, and Plotivy generates a matplotlib or Plotly script. You can then adjust it - change colors, rescale axes, add annotations - by typing instructions, not by clicking through menus. The final code goes into your supplementary materials exactly as-is.
Plotivy is free for everyone, with no paid tiers or paywalls. I am personally covering all infrastructure and AI inference costs to keep it available to the research community. If this tool saves you time or money, consider supporting the project so it can keep running.
Learn how to support PlotivyYes. Plotivy is completely free to use. There is no Pro tier or paid plan. I am personally funding the infrastructure and AI costs. If you find it useful, you can support the project on the support page.
Yes. Since the output is Python code using matplotlib or Plotly, you can set any DPI you need (300, 600, or higher) directly in the generated script. There is no artificial resolution cap.
Plotivy handles statistical annotations - p-values, significance bars, error bars, trend lines, and curve fits. For complex ANOVA or regression workflows, the typical approach is to run the statistics in SciPy or R and bring the results into Plotivy for visualization. Start from our t-test guide or ANOVA visualization guide.
Scatter plots, bar charts, violin plots, box plots, histograms, heatmaps, line charts, and more. Explore bar charts, violin plots, and box-and-whisker plots.
Plotivy does not store your uploaded data after the session ends. The backend processes each request and discards the data immediately.
No account required. No credit card. Upload your data and generate your first figure in under a minute.
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