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Vizb is a command-line tool published by Goptics, currently at version 0.21.0 with 17 versions released to date, designed to convert benchmark output into interactive 4D HTML visualizations. The software addresses a common challenge in performance engineering: benchmark results produced by testing frameworks are typically emitted as plain text tables that can be difficult to interpret, compare, and communicate, particularly when benchmarks vary across multiple dimensions such as input size, concurrency level, or configuration parameters. Vizb accepts benchmark output from three major language ecosystems, covering Go benchmarks generated through go test -bench, Rust benchmarks produced via cargo bench using the Criterion or Divan harnesses, and JavaScript benchmarks run with Vitest or Tinybench. By parsing these outputs and rendering them as interactive HTML reports, the tool enables developers to explore performance data visually rather than scanning raw terminal logs, making it easier to spot regressions, identify scaling behavior, and compare alternative implementations. The multi-language support makes it suitable for polyglot codebases and teams that maintain services or libraries across different technology stacks, while the self-contained HTML output format means visualizations can be shared with colleagues, attached to pull requests, archived alongside continuous integration runs, or hosted on static file servers without requiring additional infrastructure. Typical use cases include performance regression analysis during code review, comparative evaluation of algorithms, documentation of baseline performance characteristics, and historical tracking of benchmark trends across releases. As a CLI utility, Vizb fits naturally into automated pipelines where benchmark jobs run on every commit and visual artifacts are generated as build outputs. The tool occupies the benchmarking and performance visualization category of developer tooling, bridging the gap between low-level benchmark harnesses and human-readable performance reporting. Its 17 released versions, culminating in version 0.21.0, indicate an actively developed project that has undergone multiple iterations of refinement since its initial publication.
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