In a fixed expression: to state one's opinion openly, directly, and unambiguously, without sugarcoating anything.
example
Lass uns endlich Klartext reden: Die aktuellen Ergebnisse sind eine Katastrophe.
Let's finally talk straight: the current results are a disaster.
Usage tips
Compound word
'Klartext' (plain text / straight talk) is a compound noun made up of the adjective 'klar' (clear) and the noun 'Text' (text). The meaning is literal in both cases: a clear, meaning understandable and direct, text; or a clear, meaning unencrypted, text.
EXAMPLE
Ich brauche eine klare Antwort, also sag mir bitte Klartext.
I need a clear answer, so please tell me straight.
Fixed expression
In the meaning of 'speaking openly', the word is used almost exclusively in the fixed expression 'Klartext reden' (to talk straight) or, less commonly, 'Klartext sprechen' (to speak plainly).
EXAMPLE
Nach wochenlangen Andeutungen hat der Chef endlich Klartext geredet.
After weeks of hints, the boss finally talked straight.
Context clue
You can easily recognize the meaning from the context. Verbs like 'reden' (to talk) or 'sprechen' (to speak) point to the figurative meaning. Technical terms like 'Passwort' (password), 'Daten' (data), 'speichern' (to store), or 'verschlüsselt' (encrypted) point to the cryptographic meaning.
EXAMPLE
Der Politiker versprach, im Interview Klartext zu reden.
The politician promised to talk straight in the interview.
Use in specialist contexts
In IT and cryptography, 'Klartext' (plain text) is often used with the preposition 'in'. For example, people say that data is stored or transmitted 'im Klartext' (in plain text).
EXAMPLE
Passwörter sollten niemals im Klartext in einer Datenbank gespeichert werden.
Passwords should never be stored in plain text in a database.
Compare with
antonym
Klartext vs Andeutung
hint / trace
'Klartext' and 'Andeutung' are opposites here. 'Klartext' is used mainly in the expression 'Klartext reden' (to talk straight): someone says openly and directly what they mean. An 'Andeutung', by contrast, is only an indirect hint. You do not say something clearly, but leave others to understand it themselves. If a person should stop talking around the topic, you ask for 'Klartext'. If they say something only cautiously or in a hidden way, it is an 'Andeutung'.
Klartext
Nach vielen Ausreden redete die Chefin endlich Klartext über die Probleme im Team.
After many excuses, the boss finally talked straight about the problems in the team.
Andeutung
Am Montag machte der Kunde nur eine Andeutung, aber er sagte nicht genau, was ihn störte.
On Monday, the customer only made a hint, but he did not say exactly what was bothering him.