Financial Reporting · Open Tools

XBRL Tools
Hub

Open tools for exploring structured financial data — from Companies House bulk filings to ESEF annual reports and SEC EDGAR submissions.

Tools
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Companies House
XBRL → CSV
Convert bulk XBRL accounts downloads from Companies House into a clean, filterable CSV dataset.
.zip upload UK accounts bulk data
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ESEF / iXBRL
Fact Viewer
Load an ESEF report package and explore all tagged facts across a dashboard, filterable table, and pivot view.
.zip ESEF EU listed
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XBRL
Fact Viewer
Upload any XBRL file — ESEF zip, UK iXBRL .xhtml, or SEC .xml — and extract all tagged financial facts.
.zip .xhtml .xml multi-format
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UK iXBRL
Viewer
View and inspect inline XBRL tags within UK annual reports — highlights tagged facts directly in the document.
iXBRL UK accounts tag inspector
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Find Filings
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Companies House
Search UK company filings. Download iXBRL accounts from Filing History.
find-and-update.company-information.service.gov.uk
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CH Bulk Data
Daily bulk XBRL accounts downloads — use with the Companies House CSV converter.
download.companieshouse.gov.uk
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XBRL Filings Index
ESEF and UKSEF annual report packages from EU and UK listed companies.
filings.xbrl.org
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SEC EDGAR
US public company filings. Search any ticker for 10-K annual reports with XBRL tagging.
sec.gov/cgi-bin/browse-edgar
About

These tools use Arelle, the leading open-source XBRL processor, to parse filings and extract structured financial data. All processing happens on Streamlit's servers — files are not stored or shared.


XBRL (eXtensible Business Reporting Language) is the global standard for structured financial reporting. iXBRL (inline XBRL) embeds machine-readable tags directly into human-readable HTML reports. ESEF (European Single Electronic Format) mandates iXBRL for annual reports filed by EU and UK listed companies.