Representations: Binary & Hex

bjohns

About this app

Representations: Binary & Hex is a fast, fully offline reference for number bases, UTF-8 bytes, and Unicode® code points.

Browse integers from 0 to 99,999 in decimal, hexadecimal, and binary. Explore UTF-8 byte sequences, byte counts, symbol previews, categories, and code point formats.

Search by plain values or prefixes such as 0x, 0b, U+, char:, bytes:, cat:, and block:. Use compact UTF-8 filters for search mode, named sets, and practical Unicode lenses. Tap result values to copy them, including code points for non-displayable symbols.

Features:

- Fast on-device search
- Fully offline local data
- Decimal, hexadecimal, and binary lookup
- UTF-8 byte and code point details
- Compact UTF-8 filters
- Tap-to-copy result values
- No account required
- No advertisements, analytics, or tracking
- Built for Android 7.0+ phones and tablets

Trademark notice: Unicode and the Unicode Logo are registered trademarks of Unicode, Inc. in the United States and other countries.

What’s new

- Refreshed search field text.
- Enhanced backend.