The CEO of Twitter, Jack Dorsey, has said the social media platform is 'looking at' an edit button for users.

In a podcast interview with comedian Joe Rogan on Friday, he said they were not considering expanding the capacity of 140 characters.

But added: "We don't have edit Tweets right now - if you can't edit 140 characters, you're going to be really p****d off if you write a million characters and can't edit those things".

An ability to edit tweets has long been called for by users of the social media site.

Host Rogan said: "I would like the ability to edit... but also the ability for people to see the original" - to which Dorsey replied: "We're looking at exactly that".

Dorsey explained: "The reason we don't have it in the first place is we were born on SMS, we were born on text messaging - when you send a text you can't take it back".

"So when you send a tweet it goes to the world instantaneously - you can't take it back".

Jack Dorsey is pictured at the digital fair dmexco in Cologne, Germany in 2017 | Image: Rolf Vennenbernd/DPA/PA Images

"But you could build it such that maybe we introduce a five send to 30 second delay in the sending, and within that window you can edit".

He added: "The issue with going longer than that, it takes that real-time nature and the conversational flow out of it.

"Then we're delaying these tweets and when you're watching UFC or you're watching Warriors basketball, a lot of a lot of the great Twitter is just like in the moment... it's the roar of the crowd.

"It's... looking across at someone you're in this virtual stadium with and saying 'Oh my God that shot, can you believe it?'".

He said clarity depends on the context: "If you're in the context of an NBA game, you want to be fast and you just want to be at the moment... but if you're in the context of considering what the president just did or making a particular statement, that you probably need some more time".

"We can be dynamic" he said.