Chart Maker
Generate bar, line, or pie charts from CSV or JSON data and export them as images. Ideal for quick data visualization without needing spreadsheet software. All chart rendering happens locally on your self-hosted SnapOtter instance.
Features
- Supports bar, line, and pie chart types
- Accepts both CSV and JSON data inputs
- Exports charts as downloadable image files
- Automatic axis labeling and legend generation
- Clean, presentation-ready chart styling
What you can do
- Creating a bar chart from monthly sales CSV data for a report
- Generating line charts from sensor data logs for monitoring dashboards
- Building pie charts from survey results in JSON format
- Producing quick data visualizations for team presentations
Self-hosted. Your files never leave your network.
SnapOtter runs entirely on your own infrastructure. Files processed with Chart Maker are never uploaded to third-party servers. Deploy a single Docker container and process files with full privacy, no watermarks, and no usage limits. Open source under AGPL-3.0.
Frequently asked questions
- What chart types can I create?
- You can create bar charts, line charts, and pie charts from your data. All rendering happens locally on your self-hosted SnapOtter server with no external services.
- What data formats are accepted?
- The tool accepts both CSV and JSON data inputs. Upload your data file and select the chart type you need. Processing runs entirely on your own infrastructure.
- Can I use this for confidential data?
- Yes. SnapOtter is self-hosted, so your data never leaves your network. Charts are generated locally without any external API calls or cloud processing.
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