XBRL Instance Viewer

Decode an XBRL 2.1 instance (IFRS, US GAAP, ESEF) directly in your browser. Contexts, units, facts — 100 % client-side.

How it works

An XBRL 2.1 instance is an XML document whose root element is <xbrli:xbrl>. Below the root, three families of children:

• Contexts (<xbrli:context>) describe the entity (LEI, ISIN…) and the period (instant or duration) the facts refer to.
• Units (<xbrli:unit>) declare monetary measures (iso4217:EUR), physical ones (xbrli:shares) or composites (iso4217:EUR / xbrli:shares).
• Facts are any element living in a taxonomy namespace (IFRS, US-GAAP, ESEF…), carrying contextRef, unitRef, and optionally decimals.

The viewer tokenises the document with DOMParser (browser) or fast-xml-parser (Node), then splits those three streams across four keyboard-navigable tabs (Left/Right arrows, Home, End).

Supported XBRL 2.1 subset

• Root <xbrli:xbrl> element with namespace registry.
• Contexts with entity (scheme + identifier) and period (instant, duration startDate + endDate, or forever).
• Raw scenario XML serialisation for inspection.
• Simple units (one or more <xbrli:measure>) and composite units (<xbrli:divide>).
• Facts in any taxonomy namespace (IFRS, US-GAAP, ESEF, EBA…).
• Attributes contextRef, unitRef, decimals, precision, xsi:nil.
• Ignored structural elements: schemaRef, linkbaseRef, roleRef, arcroleRef, footnoteLink.

Limits

• No taxonomy resolution. The viewer does not open the XSD schemas or linkbases pointed to by <link:schemaRef> — concept labels (EN/FR) and presentation/calculation hierarchies are therefore not displayed.
• No DRR Dimensions validation. Hypercubes (xbrldt:hypercubeItem), typed-domain arcs and the Dimensional Relationship Rules are not checked.
• Tuples are not expanded. XBRL 2.1 tuples (rare in practice) are surfaced as a single fact element.
• Footnote arcs and formula assertions are out of scope.

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Related documentation

• XBRL Specification — glossary entry covering the XBRL 2.1 stack (instances, taxonomies, linkbases).
• ESEF Format — the European format (Inline XBRL) for listed-issuer annual reports.
• XBRL International — Specifications: the normative source; specifications.xbrl.org.