Twitter is trialling a new 280-character limit on tweets.
The social networking giant believes the current 140-character limit means some users find it hard to express themselves in languages such as English and Spanish.
Just 0.4% of tweets sent in Japanese have 140 characters, compared to 9% of English tweets, the company said.
This is due to languages like Japanese and Chinese being able to convey more in one character, it added.
The new feature will be available in all languages except Chinese, Korean and Japanese.
This is a small change, but a big move for us. 140 was an arbitrary choice based on the 160 character SMS limit. Proud of how thoughtful the team has been in solving a real problem people have when trying to tweet. And at the same time maintaining our brevity, speed, and essence! https://t.co/TuHj51MsTu
— jack (@jack) September 26, 2017
The trial is being rolled out to a small percentage of Twitter’s 328 million monthly users.
Twitter’s product manager Aliza Rosen said: “We want every person around the world to easily express themselves on Twitter, so we’re doing something new: we’re going to try out a longer limit, 280 characters, in languages impacted by cramming.”
Ms Rosen stressed that Twitter was still about brevity, adding: “It’s what makes it such a great way to see what’s happening.
“Tweets get right to the point with the information or thoughts that matter. That is something we will never change.”
Earlier this year, the social media site removed character limits from Direct Messages sent privately between users.
It also stopped counting images and other media attached to tweets as part of the character limit in an attempt to improve the service.
Twitter revealed in its Q2 earnings this year that revenue fell 5% on the same quarter last year to $574m (£436m).