The gap it fixes

Multi-file schemas are where XSD/WSDL tooling tends to give up. The long-standing paid option in this niche, XSD / WSDL Visualizer (36,897 downloads, freemium), collected reviews saying so:

"Pretty useless tool, not recognizing correlations between multiple xsd files in same folder..." (June 2025)
"I need to visualize complex wsdl (xsd was splitted to more files) and this was not able to parse it."
"Not optimized at all on big WSDL files as it is REALLY slow."

Checked again on 2026-09-22: 9 of its 13 reviews are 3 stars or fewer, and its 2026.1 release (March 2026) says "Tree View now supports multi-file schemas" and "Single-file schemas are now free" -- so those complaints are being worked on, and the comparison is dated on purpose rather than left to imply a current state.

What this plugin does, regardless of that: the whole include/import graph, .xsd and .wsdl alike, free, with no network access.

Facts and pricing

Category: API
Pricing: Free
Platform: IntelliJ-family plugin
First published: 2026-08-31
Marketplace ID: #33392
Repository: xsd-companion
Growth: ▲ +409.1% since 2026-08-18 (33→168)

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Download and star counts as of 2026-10-18, refreshed twice daily from the JetBrains Marketplace and GitHub APIs.