- UglifyJS This lets you view the parser output from UglifyJS in the browser.
- HTML Parser 2 This lets you view the parser output from htmlparser2 in the browser.
- Regexp This lets you view the parser output from regexp in the browser.
- Yieldify A transpiler for ES6 that produces readable output.
- toml Tom's obvious markup language (for writing configuration files).
- Global Variables Detect global variables in your code (often helping expose bugs).