Convert Text to Binary (Unicode)

People search “binary converter” and expect letters in, 0s and 1s out. FlashKit’s binary converter does that — with one honest limit: each character becomes its Unicode code point printed in base 2, not the UTF-8 byte sequence, not hex, and not octal. The page is a text-to-binary translator for classrooms and short protocol notes, not a firmware viewer.

Worked example: Hello World

Keep the default sample. You should see eleven tokens:

1001000 1100101 1101100 1101100 1101111 100000 1010111 1101111 1110010 1101100 1100100

That is H e l l o, a space, W o r l d. Change the first token to 1001001 and the text becomes “Iello World” because 1001001 is “I”. Decoding splits on spaces or commas, runs parseInt(token, 2), and uses String.fromCodePoint. A token with a 2 or a letter shows a red error and leaves the last good text in place.

Code points versus UTF-8 bytes

“A” is 1000001 in both views. “é” is one code point (11101001 for U+00E9) but two UTF-8 bytes (11000011 10101001). The euro sign is one token here and three UTF-8 bytes elsewhere. If your homework wants padded 8-bit bytes, write the zeros yourself — this page omits them the way Number.toString(2) omits them.

Same family, different base: letters to hex, text to ASCII, text to decimal. If the paste looks like SGVsbG8=, that is Base64 — see the Base64 encoding guide, not this converter.

Limits

• Do not drop a PNG or a firmware .bin here. Use a hex editor.
• Very long pastes can freeze the tab. Split the work.
• Nothing is stored. Refresh restores “Hello World.”

Frequently asked questions

Related Tools

• Binary Translator
• Text to Hex
• Text to ASCII
• Text to Decimal