JavaScript Function Name Extractor
List the functions declared in a file, including arrow functions assigned to a name.
Your result will appear here as soon as you add some input.
How to use it
- 1Paste your input into the input box, or type it directly.
- 2Adjust the options if you need something other than the defaults.
- 3The result updates as you type.
- 4Copy the result to your clipboard or download it as a file.
About the JavaScript Function Name Extractor
Declarations, function expressions and arrow functions assigned to a const or let are all matched. Anonymous callbacks are not, because they have no name to report.
A long list from a single file is usually a signal that the file is doing several unrelated jobs.
Questions people ask
Is your code uploaded to a server?
No. This tool runs entirely in your browser using standard web APIs, so your code never leaves your device. You can confirm it by opening your browser's network panel while the tool runs, or by disconnecting from the internet after the page has loaded.
Is it free, and do I need an account?
Yes, it is free, and there is no account, no sign-up and no watermark on the result. The project is funded by optional donations.