How to Say "to post" in Spanish
The most common Spanish word for “to post” is “publicar” — use 'publicar' when you are making content available to the public on a website or social media platform..
publicar
/poo-blee-KAHR//publiˈkaɾ/

Examples
Ella va a publicar una foto nueva en Instagram.
She is going to post a new photo on Instagram.
No debes publicar información personal en internet.
You shouldn't post personal information on the internet.
The 'C' to 'QU' Swap
In the 'I' form of the past (publiqué) and all command forms, the 'c' changes to 'qu' so it keeps the hard 'K' sound. Without it, it would sound like a 'S'!
Posting vs. Advertising
Mistake: “Using 'publicar' to mean 'to advertise'.”
Correction: Use 'anunciar' for advertising products. 'Publicar' is for making content or information available.
subir
soo-BEER/suˈβiɾ/

Examples
Voy a subir las fotos de las vacaciones a la nube.
I'm going to upload the vacation photos to the cloud.
Cuando subas el video, dime para verlo.
When you upload the video, let me know so I can watch it.
Digital Ascent
Think of 'subir' in a digital context as sending information 'up' to the cloud or a server. 'Descargar' (download) is the opposite action.
Publicar vs. Subir
Related Translations
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