OutletAtlas

OutletAtlas is an offline guide to power outlets, voltage standards, and plug types worldwide for 150+ countries. Plan adapters and device compatibility before you travel.

Features: country database with voltage and frequency, plug types A–N, compatibility checks between countries, travel checklist and safety tips, quiz and flashcards, glossary, favorites and search—all usable offline. Material Design 3 with dark mode.

For planning and education only; verify device specs and use certified adapters. No accounts or tracking.