ONIX Viewer

Pretty-print ONIX XML in Chrome, with syntax highlighting, Product summaries and inline EDItEUR code-list resolution.

ONIX Viewer turns raw ONIX XML pages into a readable view inside Chrome. ONIX (the bibliographic-metadata format used across the publishing industry) is normally shown as a wall of tags; this extension renders it as a syntax-highlighted, collapsible tree with the EDItEUR code lists wired in. Features • Collapsible, syntax-highlighted XML tree • Search, expand-all, collapse-all, soft-wrap toggle • Auto-collapsed <Product> blocks with a one-line summary (ISBN · form · title) so a 10,000-product feed stays scannable • Resolved code-list labels (ProductIDType, ProductForm, ContributorRole, LanguageCode, CountryCode, …) inline beside every value • One-click popup showing every entry of any list (all 165 EDItEUR lists bundled, ~4,750 codes), linked to the canonical EDItEUR definition page • ONIX 3.0 / 3.1 detection, both reference-name and short-tag dialects, plus older 2.1 docs • Leaves non-ONIX XML alone — the browser's native viewer handles RSS, generic XML and SOAP responses Works on local .xml files (after enabling the per-extension toggle in chrome://extensions → Details → Allow access to file URLs) as well as remote URLs. Built at Bokbasen — useful for anyone reading ONIX.