Is there an option to display in bits instead of bytes?

Yes, there is. The bits option allows you to format the number as bits instead of bytes [index.d.ts:L23-L32].

When you set bits: true, the output will display bit units instead of byte units. For example [index.d.ts:L28-L31]:

import prettyBytes from 'pretty-bytes';

prettyBytes(1337, {bits: true});
//=> '1.34 kbit'

This option defaults to false [index.d.ts:L25], so by default the library formats numbers as bytes. The bits option is useful when referring to bit rates or other bit-based measurements.

FOLLOW_UPS:

• How do I use binary prefix instead of SI prefix?
• What other formatting options are available?
• Can I combine bits with other options like signed?