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CodeNav vs LGTM: What are the differences?
Developers describe CodeNav as "A browser extension that improves code navigation on Github". CodeNav is a Chrome extension and Firefox addon that makes navigating code on Github easier and more intuitive. It borrows features from popular IDEs for more seamless movement around code. Hover over a variable to highlight other references and visualize them on your scrollbar. Click a variable or object to search for other instances in the same project. On the other hand, LGTM is detailed as "A simple pull request approval system for GitHub". LGTM is a simple pull request approval system using GitHub protected branches and maintainers files. Pull requests are locked and cannot be merged until the minimum number of approvals are received. Project maintainers can indicate their approval by commenting on the pull request and including LGTM (looks good to me) in their approval text.
CodeNav and LGTM can be categorized as "Tools for GitHub" tools.
CodeNav and LGTM are both open source tools. It seems that LGTM with 936 GitHub stars and 92 forks on GitHub has more adoption than CodeNav with 125 GitHub stars and 19 GitHub forks.