Anonymous Pro
Google Fonts · Mark Simonson · 2009

A dependable monospace typeface built for coding and terminal work, with excellent character disambiguation and multilingual support.
About
Anonymous Pro was designed by Mark Simonson with programmers firmly in mind, offering four styles — regular, italic, bold, and bold italic — across Cyrillic, Greek, and Latin scripts. The design pays careful attention to characters that are frequently confused in code environments, making it a reliable workhorse for developers. Its straightforward, unshowy aesthetic also makes it effective for technical documentation and interface contexts.
Classification
A fixed-width typeface designed specifically for coding and terminal use, featuring clear disambiguation between easily confused characters such as 0/O and l/1/I. It includes both roman and italic styles with strong legibility at small sizes.