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Certain digital cameras store your picture files with an UPPERCASE .JPG extension. Some web servers and/or browsers may not deal very well with the difference between .jpg and .JPG and other filename extensions, in which case you find yourself having to rename the extension of each and every such file.

We have an App for that, too. :-)  Simply download and install LowerCaseFilename.ext and you will be able to change the extension of your files to small letters with a single menu selection.

What is Filename Extension and what does LowerCaseFilename.ext do?

In Windows, every file has an associated filename extension, indicating its file type to the system and other programs and applications.

Certain digital cameras, recording devices and Windows applications store files with an UPPERCASE extension. While Windows itself doesn't really care whether the extension is in caps (capital letters), certain web servers, browsers and other devices may not deal very well with a filename extension that's not all lower case.

Changing the filename extension to all lowercase could be tedious and quite time consuming if you do it manually or via the command line. This is why we created LowerCaseFilename.ext -- to help you perform this complicated task, with a single context menu click! 

In the following snapshot you can see the original extension of a file, a moment before using LowerCaseFilename.ext to lower it:

Filenames with UPPERCASE extension

Then, all you do is (1) select all the files you want to rename (use Ctrl+click and/or Shift+click to select more than one file), (2) right-click any of these files, (3) select "Lower-case extension" and Voila! All the files you selected lowered their extension case.

This is how the Filename field of the selected file looks like, a moment after LowerCaseFilename.ext was invoked:

lowercase extension, after invoking

Note: It goes without saying that you can only perform this operation on files to which you have write access. This is especially true in Windows 7, which has stronger protection for system files.

As with all Software Candy products, LowerCaseFilename.ext is completely free of any viruses or spyware (digitally signed for authenticity and integrity) and is well tested for its advertised features. If ever needed, you can also uninstall it completely with a single click, performing a total cleanup after itself.

To enjoy LowerCaseFilename.ext:
  1. Click 'add this to my cart' button below.
  2. Download it (it will become immediately available for download after payment).
  3. Install it.

That's it. :-)

By purchasing this product, you receive 12 downloads for 365 days (whichever expires first). In effect, this gives you up to 12 FREE upgrades for one year. If you purchased this product, remember to periodically check this page for a new version. We strive to polish our products to perfection.

Note: Unless otherwise noted (in the compatibility list below), this software is compatible with the 32-bit version of Windows. Download this FREE tool to check whether your Windows is 32-bit or 64-bit.

  • Version:

File Format:

Compatible with:

Windows Vista®, Windows® 7, Windows® XP,

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