Brand.ai - Create a style guide & integrate with Sketch, Slack, & Gulp
Identihub - Self-hosted Open Source brand & assets management software
Frontify Workspace - The overall tool for creative & design collaboration: - upload, manage & share assets
Brandy - Keep brand assets in sync with your team and right at your fingertips for quick use.
Emblem - Build your own beautiful brand
Frontify Style Guide - Create beautiful web-based brand manuals in minutes