Paste binary (groups of 8 bits) and read it back as text.
Each space-separated group is read as one binary number and converted to the character with that code. Groups of other lengths are accepted too, as long as each group is one character’s code.
What if my binary has no spaces? Add spaces every 8 bits first, or the converter reads the whole string as one giant number. Most binary you copy from elsewhere is already grouped.
Why do I see odd characters? The codes likely aren’t text bytes — binary data that isn’t text (images, programs) won’t decode to readable words.