Jowna is a modern, offline-ready visualization tool for hierarchical data (metagenomics, file systems). It generates a single, portable HTML file containing both the viewer and your dataset. Designed as a drop-in alternative to Krona (no Perl required). Built using an AI-First architecture with @owebeeone/grip-react.
react visualization bioinformatics offline-first metagenomics hierarchical-data sunburst krona single-file-app grip-react
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Updated
Feb 12, 2026 - TypeScript