UTF-8 encoding test

If every line below reads correctly, and nothing shows as é, ’ or empty boxes, the file was read as UTF-8.

Language or setText
English (quotes and dashes)“Curly quotes” — an em dash… and an ellipsis
DutchÉén ijsje, café, coördinatie
GermanGröße, Übermaß, Straße
PolishZażółć gęślą jaźń
GreekΚαλημέρα κόσμε
RussianСъешь же ещё этих мягких французских булок
Japaneseこんにちは世界
Chinese你好,世界
Korean안녕하세요 세계
Hindiनमस्ते दुनिया
Arabic (right to left)مرحبا بالعالم
Hebrew (right to left)שלום עולם
Currency€ £ ¥ ₹ ₿
Maths∑ ∞ ≠ ≤ ≥ √ π ½
Emoji👋 🌍 ✅ 🚀 👩🏽‍💻

Sample file from 99helpers.com/file-types/html. Free to use for testing.