Understand every
report change.
Two report versions. One clear comparison. Discover changes to visuals, layouts, DAX, relationships, bookmarks and more — then turn them into release notes your team can actually use.
Compare two report versions
Choose the earlier version and the updated version. Select your complete PBIP project folder or a ZIP containing the .pbip shortcut, .Report folder and .SemanticModel folder. The app follows the report’s semantic model reference automatically.
Baseline version
Or drop a complete project ZIP here. A .pbip shortcut alone is not sufficient.
Updated version
Or drop a complete project ZIP here. A .pbip shortcut alone is not sufficient.
Add a baseline and an updated report to get started.
Change analysis
Select a change
Generated Markdown release notes
Eight areas of comparison
See what was added, removed or modified in the report structure. Coverage is based on the metadata actually available in each file.
Page presence, dimensions, display settings, order and mobile positions.
Chart type, position, size, query bindings and visibility metadata.
New, deleted and edited expressions plus supported measure metadata.
Join columns, active status and cross-filtering properties.
Report, page and visual-level filter definitions where stored.
Bookmark definitions, page states and navigation groups.
Theme references, visual properties, backgrounds and formatting.
Report configuration, page order and extension metadata.
Formats and limitations
Power BI stores different levels of detail depending on the file format. Use a PBIP project containing PBIR and TMDL files for the best results.
Supported inputs
- PBIP project folder / ZIP: preferred — include the
.pbipfile and*.Report/definitionand*.SemanticModel/definitionfiles. - PBIR report ZIP: pages, visuals, filters, bookmarks and report settings.
- TMDL / model.bim: measure expressions and relationship definitions.
- PBIX / PBIT: best-effort reading of legacy
Report/Layoutmetadata only.
For a complete project comparison: in Power BI Desktop, save as a Power BI Project (.pbip), enable PBIR and TMDL storage, then select the project folder or upload a ZIP of the complete folder. The .pbip file is a pointer to the report folder, not an archive. An isolated .pbip cannot be compared; select its companion .Report and .SemanticModel folders too. Sample PBIP v1 · Sample PBIP v2.
What this tool cannot guarantee
- Does not parse proprietary PBIX DataModel binaries or decrypt encrypted archives.
- Does not compare underlying data values, refresh results, RLS outcomes or visual rendering screenshots.
- Does not currently perform DAX semantic equivalence or dependency-impact analysis.
- Renamed object IDs may show as one deletion and one addition.
- Unknown or missing metadata is marked not verified, never assumed unchanged.
Your reports stay on your device.
The comparison runs entirely inside your browser, with no report upload API, login or analytics. The online interface may request Mightora shared UI assets and branding from external domains. The offline edition is fully self-contained.
Network transparency
Online mode fetches official Mightora shared stylesheet/components and third-party YAML dependency; report files and comparison content are never transmitted by application code.
Refresh to inspect resource requests.
Independently verify: Press F12 → Developer Tools → Network → enable Preserve log → reload the page → inspect the domains and requests. The on-screen summary uses browser Performance Resource Timing, which can omit some network activity; it is not a security audit.
Run completely offline
The downloadable single-page edition embeds its interface, code and styles. It requires no web server, external APIs, tracking or fonts. Double-click its index.html on Windows, macOS or Linux.
Offline application policy: default-src 'none' with inline styles/scripts only and no external connections. Browser extensions and operating-system services are beyond application control.
Power BI diff FAQ
How do I compare two Power BI reports?
Save the earlier and later Power BI projects in PBIP format. Select their project folders or ZIP archives above, click Compare, then browse the change list or download release notes.
Can this compare DAX measures?
Yes, when TMDL table definition files or a model.bim semantic model are available. Traditional PBIX DataModel binaries cannot be decoded by this static application.
Are report files uploaded to a server?
No. Your browser reads them locally. The online site loads public UI assets, but its application code does not send report contents to any remote endpoint.
Can I compare PBIX files?
Best-effort comparison is available for readable legacy Report/Layout metadata inside PBIX/PBIT ZIP archives. For accurate measure and relationship comparisons, save your reports as PBIP projects with semantic model metadata.
Does it produce release notes?
Yes. The Markdown release notes group added, modified and removed changes by area and record all unsupported comparison categories. You can also export HTML and structured JSON reports.
Does the offline edition need installation?
No. Download the single HTML file or extract the ZIP, then open index.html directly in a modern browser. No installation, local server or internet access is needed.
