Byte to String

Byte to String Converter – Byte Array to String and Back

Convert a byte array into a readable string, or a string into a byte array you can paste into code. The tool understands the formats that programming languages actually print: [72, 101, 108] from Python or JavaScript, Java's signed -61 style bytes, and hex lists like 48 65 6C, and decodes them with the character encoding you choose.

Bytes to String

Paste the bytes in almost any format – with or without brackets, separated by commas or spaces, decimal or hex. Whole code literals such as byte[] bytes = { 72, 105 }; or new Uint8Array([72, 105]) work too, so the swap button round-trips cleanly. The sample [72, 101, 108, 108, 111, 32, -61, -89, …] is what Java's Arrays.toString(bytes) prints for UTF-8 text; negative values are converted to unsigned bytes (-61 → 195) and the result decodes to Hello çalışan 👋. Choose the Character encoding that produced the bytes:

• UTF-8 – the default for web, Linux, JSON, and most modern APIs.
• Latin-1 / Windows-1252 – single-byte legacy encodings from older databases, Windows programs, and CSV exports.
• UTF-16 LE / BE – two-byte units used internally by Windows, Java, .NET, and JavaScript strings.

String to Bytes

The reverse direction encodes your text and formats the bytes as ready-to-use code:

• JavaScript – new Uint8Array([72, 105])
• Python – bytes([72, 105])
• Java – byte[] bytes = { 72, 105 }; with signed values above 127
• C#, C, and Go – byte[], unsigned char[], and []byte{} literals

Switch the number base to hexadecimal for 0x48-style output. In Java hex mode, bytes above 0x7F get a (byte) cast so the code compiles.

Typical situations

Debugging an HTTP client that returns a byte array, checking what a serial device sent, writing a unit test with a fixed payload, porting code between languages, or figuring out why a string looks wrong after it passed through a byte buffer. If you only see garbled characters like ç, the text was probably decoded with the wrong encoding – UTF-8 Decode can repair it. For raw bytes that include control characters, use Byte to ASCII.