After 7 months of preparing and refactoring we are happy to present the new TYPO3 Extension Repository (TER).
It was launched on 23th of August 2017 and is still under construction. So you may find things that aren't really working or should do better. Please let us know! File an issue at https://git-t3o.typo3.org/t3o/ter/issues. We also appreciate feedback and suggestions very much. Use your typo3.org credentials to login. Enjoy!