The Crito (Greek: Κρίτων) is the third in the sequence of Platonic dialogues set during the period of Socrates' trial and death, portraying events after the Euthyphro and Apology and before the Phaedo. It centres on the attempt by Crito to persuade Socrates to escape, which provides the occasion for a discussion of the nature of justice and of the citizen's relationship to the state. in seeking to convince Crito of his obligations to the city, Socrates puts forward an early instance of social contract theory.
Free Online Texts
Bacchicstage: Plato's Crito. Translated by George Theodoridis (2015). English online text.
Gutenberg: Crito by Plato, translated by Benjamin Jowett, multiple formats.
Internet Archive: The Harvard Classics, Volume 2. Plato, Epictetus, Marcus Aurelius. The Apology, Crito and Phaedo, by Plato. The Golden Sayings by Epictetus. The Meditations by Marcus Aurelius. EPUB, MOBI, TXT & PDF formats.
Internet Classics Archive: Crito, translated by Benjamin Jowett. Online text.
Social Science Network: Crito (Woods and Pack 2016). English pdf.
University of Adelaide (Internet Archive): Crito, translated by Benjamin Jowett. EPUB, HTML and MOBI formats.
Approaching Plato: A Guide to the Early and Middle Dialogues
Dale E. Burrington: Guides to the Socratic Dialogues.
History of Philosophy without any gaps: Method Man - Plato's Socrates, podcast by Peter Adamson.
History of Philosophy without any gaps: Raphael Woolf on Socrates, interview podcast by Peter Adamson.
History of Philosophy without any gaps: In Dialogue - The Life and Works of Plato, podcast by Peter Adamson.
Librivox: Crito, public domain audiobook.
PhilPapers: Plato - Crito - open access papers.
Stanford Encyclopedia of Philosophy: Plato's Shorter Ethical Works.
Youtube: The Death of Socrates - play by Jonathan Miller adapted from the Crito and Phaedo (embedded above).
YouTube: History of Ancient Philosophy - Plato's Republic II, Apology, & Crito. Lecture by Adam Rosenfeld.
The Great Conversation: Further Reading at Tom's Learning Notes.
Ancient Greek resources: Learn to read Greek classics in the original.
Bloom's Western Canon: The Dialogues are listed.