New York - The days of Twitter Inc limiting messages to 140 characters, a signature of the social network since its launch in 2006, may be numbered.
Twitter said on Tuesday that it would begin a test with a random sample of users allowing them to send tweets that are as long as 280 characters, double the existing cap, in most languages around the world.
The San Francisco-based company has stood by its short messages as a defining characteristic - like chirps from a bird, which is the company logo - even as users found ways around the limit, such as posting photos of text.
In a blog post on Tuesday, Twitter said its emphasis on brevity would never change but that it had been wondering whether people could express themselves easily enough, hurting the service's popularity.
"Trying to cram your thoughts into a Tweet - we've all been there, and it's a pain," Twitter project manager Aliza Rosen and senior software engineer Ikuhiro Ihara said in the post.