Any CSV or JSON
Chart any table directly. Numeric columns and fields each become their own chart. Promote other columns to the Name / X / Y / Z axes with --group. See the Tabular Data guide.
Features
Vizb is a tabular visualization engine for CSV, JSON, and benchmark output. A benchmark row is just a named, numeric table row — everything below works the same way for tables and benchmarks.
Modern Interactive UI
Vue.js application embedded in a single HTML file. Sort, zoom, swap axes, fullscreen, and export. All in the browser with no server.
Multi-Chart
Bar, line, scatter, pie, heatmap, and radar charts rendered together. Choose which to show with --charts or toggle in the UI.
3D Charts
Add a z-axis to render interactive 3D stacked-bar and 3D line charts. Rotate, zoom, and auto-rotate the scene. See 3D Charts.
Statistics Panel
Per-series descriptive stats (33 metrics, sortable, searchable, CSV export) plus a four-method correlation matrix (Pearson, Spearman, Kendall, distance correlation). Computed off-thread. See Statistics.
Multi-Dimensional Grouping
Extract Name, XAxis, YAxis, and ZAxis from row labels or column values using pattern matching or regex. Handle 1D, 2D, 3D, or 4D data.
Axis Swapping
Rearrange Name, X-axis, Y-axis, and Z-axis dimensions in the UI for different perspectives on the same data.
Tag-Based Merging
Tag datasets with version labels. Deep-merge across releases with chronological data ordering.
Sorting
Rank series by value so the largest, smallest, or fastest appear first. Configure with --sort or toggle in the UI.
Logarithmic Scale
Use --scale log for 2D bar and line charts when your data spans several orders of magnitude.
Large-Data Zoom
A dataZoom slider for wide X-axes and an optimized render path for big datasets keep the UI responsive on thousands of points.
Axis-Sum Tooltips
Hover any point for marginal sums. 2D charts show per-series and x totals. 3D charts show Σ z / Σ x / Σ y. Values recompute live as you toggle the legend.
Flexible Input
Reads CSV and JSON tables. Also reads benchmark output from Go, Rust (Criterion, Divan), and JavaScript (Vitest, Tinybench). Accepts a file path or an stdin pipe.
Automatic Parser Detection
--parser defaults to auto. Vizb inspects the input content and picks the right parser. It prints its choice. Override anytime with -P.
Comprehensive Metrics
Time (ns/us/ms/s), memory (B/KB/MB/GB), allocations, throughput, and latency percentiles. Units are configurable. Which metrics appear depends on the parser used.
Smart Filtering
Regex to include only matching rows (CSV/JSON: --group label) or benchmark names.
Export Options
Single-file HTML or JSON output. Export charts as JPEG from the UI.
GitHub Action
First-class CI integration. Run benchmarks, tag releases, merge history, and deploy from GitHub Actions.