Obscure Essentials • Native macOS utilities • Privacy-first

Small tools that make macOS easier to understand.

I’m Dr. Sascha Losko, an independent app developer publishing macOS utilities under the mark Obscure Essentials. No ads, no trackers, and no data collection.

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Obscure Essentials macOS utility Local-only processing No analytics

Support
support@losko.de

Focus
Quick Look • UTIs • LaunchServices

Apps

Currently shipping one focused tool — more to come.

QLProviderInspector

Obscure Essentials Inspect UTIs Find Quick Look providers See default viewer/editor

Inspect a file or folder and see its Uniform Type Identifier (UTI), conformance tree, which Quick Look providers claim support, and which apps are registered as default viewer/editor.

App details Help App privacy

Privacy by default

This website is a static site without analytics, tracking pixels, or advertising scripts. QLProviderInspector does not send any data over the network.