4. BackboardA motion-driven animation framework for Android.
7. XextensionitemEasier sharing of structured data between iOS applications and share extensions
8. GraywaterAn Android library for decomposing RecyclerView layouts to improve scroll performance.
10. JetpantsMySQL toolkit for managing billions of rows and hundreds of database machines
12. Tumblr.goThis is a library which provides structs and functions for accessing the Tumblr API
16. BookendsA UI widget for adding headers and footers to RecyclerView
18. LaphsApple Live Photo support on the web, courtesy of Tumblr
19. TmtumblrsdkUnopinionated and flexible library for easily integrating Tumblr data into your iOS or OS X application.
26. docsTumblr's public platform documentation.
28. go-collinsCollins API Client in Go - https://tumblr.github.io/collins