バイナリ変換器
テキストをバイナリコードに、バイナリをテキストに即座に変換します。
おすすめのツール
役に立つかもしれない厳選されたツール
Translating Between Text and Binary
概要
Binary is the base-2 number system computers use, where every character is stored as a sequence of 0s and 1s. This translator converts plain text to binary and back, making it easy to see how letters map to their underlying byte values. It runs entirely in your browser.
使い方（ステップ）
- 1
Enter text or binary
Type text to encode, or paste 0s and 1s to decode.
- 2
Pick the direction
Choose text-to-binary or binary-to-text.
- 3
Copy the result
The converted output appears instantly for you to copy.
仕組み
Each character is mapped to a number via its character code (ASCII or Unicode), and that number is written in base-2, usually as an 8-bit byte. For example, the letter A is 65, which is 01000001 in binary. Decoding reverses the process: each 8-bit group becomes a number, which maps back to a character.
こんなときに使う
Learning how computers represent text. Completing a homework or class exercise on number systems. Encoding a short message as binary for fun or a puzzle.
よくある質問
A byte is 8 bits, enough to represent 256 values, which covers the standard ASCII character set. Unicode characters may use multiple bytes.