Slack

You'll never send an email to a work colleague again. Instead, Slack combines open cross-team channels with private groups and 1-to-1 direct messages to bring all your team communication into one place. It includes file sharing and integrations with your existing tools so everything is covered by one blazing fast & highly accurate search system. • Slack is free to use for as long as you want and with an unlimited number of people. Premium tiers are also available. • Files are easy to add to Slack and get treated as first-class citizens with comments, previews and internal and external sharing options built in. • Integrate Slack with the tools you already use – Google Docs, Dropbox, Twitter, Github and more – to pull all your communication into one place. • Search everything you add to Slack from one box – messages, files, comments. Then filter, sort, slice and dice your search to find exactly what you need faster. • Mobile apps from Slack are fully functional and mean all your team communication are available everywhere, directly from the palm of your hand. Thousands of modern teams use Slack every day to be less busy and get more done.