ngrok vs Shellvault: What are the differences?
ngrok: Securely expose a local web server to the internet and capture all traffic for detailed inspection and replay. ngrok is a reverse proxy that creates a secure tunnel between from a public endpoint to a locally running web service. ngrok captures and analyzes all traffic over the tunnel for later inspection and replay; Shellvault: Cloud SSH terminal accessible from any browser. Shellvault is an SSH console you can use in your browser. It's like PuTTY or Chrome Secure Shell with cloud support and an elegant interface: set it up once, and you can administer your servers from any computer without any extra setup.
ngrok and Shellvault can be categorized as "localhost" tools.
ngrok is an open source tool with 16.5K GitHub stars and 2.87K GitHub forks. Here's a link to ngrok's open source repository on GitHub.