To be clear, the hyphen (sometimes called dash) is the little line on the top right of the US English keyboard ( – ) that is also used as the minus sign. So, using a hyphen is preferred over spaces, and even over just mashing filenames into one long word (e.g., image-name-without-spaces.jpg is better than imagenamewithoutspaces.jpg for both humans and algorithms). The hyphen is preferred by most search engines as it helps their algorithms determine the relevance of a file for search purposes. I prefer to use a hyphen, and if you look around you’ll notice the best practice is to use hyphens. Most people chose to use either a hyphen ( – ) or and underscore ( _ ) instead of a space.

What character should I use instead of a space? But if you work in the web world, even if just a personal blog, take the time to remove the spaces.

Any file uploaded and linked will have this issue if it has spaces. gif, etc.) as well as all document formats (.doc. The same is true for all image file formats (.png. So an image file named “image name with spaces.jpg” becomes “image%20name%20with%20spaces.jpg” when uploaded to a website. You can do it, but every space gets replaced with “%20” in the file’s URL. So how can you replace spaces with hyphens easily? If you work with the web at all, you probably know that having spaces in a filename online is not a good idea.

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