I can have my goals and time spent coding in many computers vs code and I don't lose track of my improving

When you develop a software as a freelance by remote, usually the client want to know how much you worked on his project or on a specific file during debugging. WakaTime provide to you and your client all the info you need . WakaTime provide integrations with different IDE, chat and VCS platforms to be able to share software commits with team members. All you need to do is create a WakaTime account and add the required plugin to your IDE. Usually the plugin begin to track your progresses when the IDE start on a project. The WakaTime website keep track of all your and your team members progresses on projects and files. Provide the total amount of time spend in writing code and daily average time. Provide the chance to share Repo Badges, Charts, Goals and email Reports A FREE personal version is available with limited features.

It just "works"! Does its thing in the background and gives you real-time and meaningful analytics. Integrates nicely. NOTE: I have only been using this tool for a few weeks now and do not have significant usage to provide further useful feedback at this time.