Ruby-charts: Generate pie, bar, and line charts from data files
Ruby-charts is a Ruby gem that enables users to generate professional pie, bar, and line charts from CSV, XLSX, YAML, or Ruby hash data sources. It uses pure Ruby with ruby-libgd for rendering, requires no external dependencies or APIs, and supports customization like colors, titles, legends, and fonts. The tool is optimized for performance, works offline, and integrates well with Rails for use in dashboards, email reports, and background jobs.
- ▪Ruby-charts supports multiple chart types including pie, vertical bar, horizontal bar, and line charts.
- ▪It can read data from CSV, XLSX, YAML files, or inline Ruby hashes.
- ▪The gem offers professional styling options such as custom colors, titles, subtitles, legends, and FreeType font rendering.
- ▪Charts are rendered server-side in about 100ms, making it scalable to over 1000 charts per second.
- ▪Ruby-charts integrates with Rails for use in admin dashboards, email reports, and API responses.
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ruby-charts Professional charts from CSV, XLSX, and YAML data files. Zero dependencies, pure Ruby rendering using ruby-libgd. RubyCharts.from_csv('sales.csv') .type(:pie) .title('Q1 Sales Distribution') .save('report.png') Features ✅ Multiple Chart Types Pie charts Vertical bar charts Horizontal bar charts Line charts ✅ Multiple Data Sources CSV files XLSX (Excel) spreadsheets YAML files Ruby hashes (inline data) ✅ Professional Styling Custom colors Titles and subtitles Automatic legends Text labels with FreeType rendering Grid lines and axes ✅ Performance Server-side rendering (100ms per chart) Zero external APIs Scalable to 1000+ charts/second Works offline ✅ Rails Integration Perfect for admin dashboards Embed in emails Generate reports in background jobs Serve via API Installation Add…
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