Branding Guide is an online brand guide software to easily store and share brand assets with clients, improving and streamlining your design workflow. You can easily store logos (with all file types), colours, fonts, photos, templates, icons and anything to do with your brand so that you have them for use for yourself or your team, to share them with your client or anyone who may need them.
OpenBrand - OpenBrand helps designers, agencies, and brands work together. It is a smart home for all your logos, designs, and other creative stuff.
Identihub - Self-hosted Open Source brand & assets management software
Brandy - Keep brand assets in sync with your team and right at your fingertips for quick use.
Frontify Style Guide - Create beautiful web-based brand manuals in minutes
Branding Compass - Branding Compass gives automated, expert branding advice.
PSDETCH - Open design files like PSD, PDF, Images. Extrating layers, measuring distance, comparing difference, commenting, revision -- All cool features for developers working with a design file.