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A simple plugin that adds a menu item so you can configure a keyboard shortcut for the 'Toggle Constrain Proportions' command. This plugin is similar to others but this one is made to be compatible with the new plugin methods introduced in Sketch 3945. And this plugin is not bundled with any other plugins which you'll probably never use…

Install with Sketch Runner

With Sketch Runner, just go to the install tab and search for Toggle Constrain Proportions. Runner allows you to manage plugins and do much more to speed up your workflow in Sketch. Download Runner here.

Sketch Runner screenshot

Install manually

  1. Download the plugin
  2. Double click on the toggleconstrainproportions.sketchplugin file
  3. Done

How to use

  1. Select an object
  2. Run this plugin and watch the lock change from 🔒 to 🔓 (and vice versa).


  • As of 1.1 this plugin does not come with a default shortcut anymore since it's impossible to prevent duplicate shortcut conflicts and because Sketch Runner makes it easy to run commands.
  • If you're using Sketch 44 or older, use version 1.1.


This plugin was created using skpm. For a detailed explanation on how things work, checkout the skpm Readme.


Install the dependencies

npm install

Once the installation is done, you can run some commands inside the project folder:

npm run build

To watch for changes:

npm run watch

Additionally, if you wish to run the plugin every time it is built:

npm run start

Custom Configuration


To customize Babel, you have two options:

  • You may create a .babelrc file in your project's root directory. Any settings you define here will overwrite matching config-keys within skpm preset. For example, if you pass a "presets" object, it will replace & reset all Babel presets that skpm defaults to.

  • If you'd like to modify or add to the existing Babel config, you must use a webpack.skpm.config.js file. Visit the Webpack section for more info.


To customize webpack create webpack.skpm.config.js file which exports function that will change webpack's config.

 * Function that mutates original webpack config.
 * Supports asynchronous changes when promise is returned.
 * @param {object} config - original webpack config.
 * @param {boolean} isPluginCommand - whether the config is for a plugin command or a resource
module.exports = function(config, isPluginCommand) {
  /** you can change config here **/


To view the output of your console.log, you have a few different options:

  • Use the sketch-dev-tools
  • Open and look for the sketch logs
  • Look at the ~/Library/Logs/com.bohemiancoding.sketch3/Plugin Output.log file

Skpm provides a convenient way to do the latter:

skpm log

The -f option causes skpm log to not stop when the end of logs is reached, but rather to wait for additional data to be appended to the input

Publishing your plugin

skpm publish <bump>

(where bump can be patch, minor or major)

skpm publish will create a new release on your GitHub repository and create an appcast file in order for Sketch users to be notified of the update.

You will need to specify a repository in the package.json:

+ "repository" : {
+   "type": "git",
+   "url": "git+"
+  }


Toggle the constrain proportions setting with your own configurable keyboard shortcut.




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