List unused javascript for easy removal

Is there a list somewhere of what each of these WordPress related javascripts do?

There is no comprehensive list that does this, and many of those items would not appear on it as they’re not WordPress internal files or may be required by non-WordPress files to function. Those files may be built to require them even if they don’t always use their contents.

Or is there a tool that will tell me which ones are unneeded on my site?

I believe you’ve already used that tool and it told you there was lots of unused javascript. Keep in mind that just because it was unused, doesn’t mean it isn’t in use. A person who has only ever seen a bedroom may consider a bath or shower an unused and unnecessary item in a house by this logic.

I would do trial and error but that always backfires.

This is the only method available to you that can give you certainty.

Fundamentally, the real question is why you have so many javascript files being loaded in the first place. Using this plugin to block them being loaded is a patch/workaround at best that doesn’t address the root problem or poorly built plugins/themes or too many plugins on your site. Assuming there was a problem at all, not all tools provide useful answers, many can make misleading recommendations based on out of date practices or missing context.

Also, there is no guarantee that the list in your screenshot is a list of files that are being loaded. This looks like a full list of everything WordPress has, even the things that are only loaded in WP-Admin. Many of those toggles will make zero difference to your frontend performance as they were never loaded to begin with.

Related Posts:

  1. What does “javascript:void(0)” mean?
  2. For-each over an array in JavaScript
  3. Failed to load resource: the server responded with a status of 404 (Not Found)
  4. How can I remove a specific item from an array?
  5. require is not defined? Node.js
  6. What is NODE_ENV and how to use it in Express?
  7. Loop inside React JSX
  8. Encode URL in JavaScript?
  9. JavaScript null check
  10. JavaScript “Uncaught TypeError: object is not a function” associativity question
  11. Module not found can’t resolve
  12. How can I get file extensions with JavaScript?
  13. How to detect Safari, Chrome, IE, Firefox and Opera browser?
  14. What does on() in JavaScript do?
  15. AngularJS : Factory and Service?
  16. What’s the difference between console.dir and console.log?
  17. Use images like checkboxes
  18. What is the difference between document.location.href and document.location?
  19. JavaScript error (Uncaught SyntaxError: Unexpected end of input)
  20. Uncaught TypeError: Cannot read property ‘msie’ of undefined
  21. How to hide a div with jQuery?v
  22. How do I pass variables and data from PHP to JavaScript?
  23. How do I set/unset a cookie with jQuery?
  24. Calling onclick on a radiobutton list using javascript
  25. How to properly export an ES6 class in Node 4?
  26. Uncaught Typeerror: cannot read property ‘innerHTML’ of null
  27. Sorting HTML table with JavaScript
  28. Relation between CommonJS, AMD and RequireJS?
  29. How to loop through an array containing objects and access their properties
  30. Counting the occurrences / frequency of array elements
  31. how to download file in react js
  32. TypeError: $(…).DataTable is not a function
  33. Trying to use fetch and pass in mode: no-cors
  34. Moment.js transform to date object
  35. jQuery explode string like PHP
  36. Call Javascript function from URL/address bar
  37. Anagrams finder in javascript
  38. Validate date in dd/mm/yyyy format using JQuery Validate
  39. How to subtract days from a plain Date?
  40. Stopping a JavaScript function when a certain condition is met
  41. Showing an image from an array of images – Javascript
  42. Javascript isnull
  43. How to filter JSON Data in JavaScript or jQuery?
  44. What’s the best way to reload / refresh an iframe?
  45. How do I check if a cookie exists?
  46. Get querystring from URL using jQuery [duplicate]
  47. Check if string contains only digits
  48. JS: iterating over result of getElementsByClassName using Array.forEach
  49. jQuery checkbox change and click event
  50. Error: listen EACCES 0.0.0.0:80 OSx Node.js
  51. jQuery selectors on custom data attributes using HTML5
  52. How to check if a value is not null and not empty string in JS
  53. How do I refresh a DIV content?
  54. TypeError: abc.getAttribute is not a function
  55. what is ScriptResource.axd in the page load in web app?
  56. jquery to validate phone number
  57. Closing Bootstrap modal onclick
  58. window.location() not working, not opening page
  59. How to clear the canvas for redrawing
  60. What’s a Good Javascript Time Picker?
  61. JavaScript event window.onload not triggered
  62. Default text on input
  63. JSX not allowed in files with extension ‘ .js’ with eslint-config-airbnb
  64. How to use wordpress default Password Strength Meter script
  65. wp_enqueue_script() not working at all
  66. Pass custom fields values to Google Maps
  67. Documentation for IDE’s
  68. Cloudflare’s Rocket Loader + WordPress -> Ignore scripts?
  69. Get HTTP response code on non-2xx apiFetch request
  70. What is “open()” in MediaUpload?
  71. update_option in javascript
  72. What’s the handle for media.js?
  73. How can I add Block Style support to the core HTML block in Gutenberg?
  74. How to add comment on scripts using function in wordpress?
  75. Jquery function working in Chrome Console but not in the code [closed]
  76. Gutenberg: Block validation Failed Richtext undefined
  77. Add custom HTML markup to Gutenberg RichText
  78. Multiple media uploader buttons target only one input on the same page
  79. Weird issue with slider on javascript
  80. Proper way to enqueue a generated script that isn’t in a .js file?
  81. Why isn’t wp_enqueue_script(‘jquery-masonry’) working?
  82. Adjusting jquery for WordPress
  83. Enqueue scripts based on browser width?
  84. Javascript code doesn’t work in my wordpress theme
  85. Gutenberg dependencies in package.json
  86. Homepage js is conflicting with js of plugin of other page
  87. onclick not working since move from HTML to WP
  88. wp post_tag change minlength
  89. Link to Lightbox Image-Group from Menu?
  90. Issue migrating a checkbox-type meta field to the block editor
  91. WordPress Block.js SVG createElement
  92. Adding a class to the active tab [closed]
  93. check if Url contains special character like #
  94. How to make async query in wordpress?
  95. LayersWP Customizer White Blank Screen
  96. Replacing & in JS code on pages
  97. How To Include JS Script with WP 2023 Theme
  98. Update js file on wordpress page after making changes
  99. Gutenberg core/file add style support in js/ json
  100. uploading image to wordpress site with javascript fetch function failed