Note that JPG and JPEG are different names for the same file extension. Look for either in your software’s dropdown. Many other programs will also work - open the image in the software you’re most comfortable with or if unsure try double-clicking to see the default option on your computer.

In some software versions, you may need to first “Duplicate” the file (i. e. make a copy) then “Save” that duplicate as a new format.

Change the name of the file or the location of the file if desired, for instance putting it onto your desktop for easy access. If the extension you want to convert to isn’t in the dropdown, try a different image editing software (e. g. Photoshop) or else move on to trying a different method.

Software like “Preview” (and others) can also handle bulk file conversions - simply highlight the files you want converted and right click to see your options. [1] X Research source

For instance, a search of “doc to pdf” or “jpg to gif” brings up several free online converter options.

Be wary of websites asking for payment or for an excess of personal details in order to convert your files - remember that many free resources exist and you shouldn’t have to give more than your email address in the majority of cases.

Your computer uses file extensions as shorthand to understand what software to use when opening files. Be cautious about changing these extensions manually and always back up your file before attempting. [2] X Research source This method can reduce image quality. Using the image editing software “Save As” method is generally preferable. [3] X Research source

For more detailed information on file extensions and how to toggle their visibility, have a look at Change a File Extension.

For instance, if the file’s name is “myimage. png” you can rename it “myimage. jpg” and from now on your computer will treat is as a “. jpg”.