Contact

Email: hello@tokyo-iceman.com

When reporting a bug, please include your macOS version, your Mac architecture (Apple Silicon or Intel), and the steps to reproduce.

System requirements

Common questions

Does the app upload my data anywhere?

No. The app runs offline by default and only contacts the network when you explicitly invoke a network tool (JSON from URL, cURL Tester, Network Inspector, OpenAPI Beauty). All network requests go directly from your Mac to the URL you provided.

Why can't I compare DOCX or XLSX files directly?

The structural parsers for DOCX and XLSX rely on extracting a zip archive on disk, which the App Store sandbox restricts. Export your document or workbook to PDF, RTF, HTML, plain text, CSV or TSV before comparing.

How do I clear my history?

Open the "History" tool and click "Clear All". History is stored locally and never leaves your Mac.

Where are my preferences saved?

Inside the standard macOS sandbox container: ~/Library/Containers/com.dev.tools/Data/Library/Preferences/com.dev.tools.plist. Uninstalling the app removes it.