Flickr co-founder Stewart Butterfield's Slack collaboration tool, which brings all internal messages in one spot with easy access to files stored elsewhere, has finally exited beta and become available for all as a freemium software.

Slack brings all content like emails and files from Dropbox, Twitter and other platforms, and plunk them into its own platform, making it very easily for users to search them.

Butterfield's Tiny Speck, which is based in San Francisco, announced the launch of Slack collaboration toll to the general public on Wednesday. It was launched in private beta in August last year.

Slack's developers say that the tool aims to replace a number of enterprise communications services, including intra-team email and mailing services, instant messaging and group messaging services, as well as internal file servers.

The freemium option offers access to a searchable archive of 10,000 messages, 5 gigabytes of storage, and five external integrations & native apps for Android, iOS and Mac.

Alongside the free version, the company also announced a paid version of Slack that offers more search and storage features. The Standard and Plus options of Slack will cost $8 and $15 per user per month, respectively. The company will also offer a more robust Enterprise option will cost in the range of $49 to $99 a month, but this version will not be available until 2015.