Arelle
7.5#2 in regulatory reporting softwareFree planFree planWebAPILinuxmacOS
VisitArelle vs REGREP
What both publish
| Fact | Arelle | REGREP |
|---|---|---|
| Audience | Arelle’s mission is to provide regulators, software providers, auditors, and filers a free standards-based platform for structured business data. | REGREP is built for regulated firms filing across EU, UK and global regulatory frameworks. |
| Company headquarters | Workiva's SEC filing gives its principal executive-office address as 2900 University Boulevard, Ames, Iowa 50010. | The stated headquarters is Bockenheimer Landstraße 17–19, 60325 Frankfurt am Main, Germany. |
| Documentation depth | The documentation site includes installation, command-line, web-server security, FAQ, user guides, plugin installation and development, Python API, contributor guides, API reference, and licensing pages. | REGREP publishes 14 operating manuals with 51 annotated screenshots, issued in January 2026. |
| Integrations | The Web Service API supports integration with applications such as Excel, Java, and Oracle. | Self-serve integration supports file upload and API access; deeper system integration is scoped under Solution Layers. |
| Purpose | Arelle is an open source platform for validating and processing XBRL. | REGREP maps regulated-firm data to the current regulatory framework, validates it, and returns a supervisor-ready filing. |
| Support | The project directs users to GitHub issues, its Google Group, and support email, and says issues embedded in third-party products should be raised with those product developers. | Platform support is included without charge; paid credits can be used for expert reviews, guided onboarding and expert questions. |
Arelle plans
- ArelleFree
REGREP plans
- TIN Validator€0.01, paid once
- FATCA€500 a year
- Pillar 3 Disclosures€500 a year
- EBA Single report Pro€600 a year
- EBA Single report€600 a year
- CRS / DAC2€1,000 a year
Pick Arelle if…
Arelle suits regulators, software providers, auditors, and filers working with structured business data. It can also fit teams that need XBRL validation on-premises or through an API.
Pick REGREP if…
REGREP suits regulated firms filing across EU, UK and global frameworks, especially those working across multiple reporting regimes. Firms with multiple entities should note that group and consolidated structures require a Solution Layers mandate.