PyCharm's debugger is not only one of the fastest available Python 3.6 debuggers, but also able to debug Django templates, and code running remotely, in VMs, and in Docker ContainersAdvertisement
LaSuli is a firefox sidebar. With LaSuli user can highlighter fragments on the web pages, and organize those fragments with topics. Users can compare different interpretations from different viewpoints. LaSuli also support webdav server.