Batch-changing image extensions is not as challenging as you think. Below are three methods to help you swiftly and easily change image extensions.

1. Changing Image Extensions with Any Converter
Any Converter is a free software that allows you to quickly change the format of image files. The tool currently supports various formats, image extensions, and different image extension types.
Download the software: Any Converter
Step 1: Visit the official website to download and use the software.
Step 2: On the main interface of the software, select the Open option to open the image file you want to change the extension or format of.

Step 3: After choosing the image for extension/format modification, proceed to set the new file extension for the image.

Step 4: Within the Any Converter software, various image formats are supported. Choose the image format you wish to convert to.

Step 5: Finally, click the Convert icon to complete the process.

Step 6: That's it! You have successfully completed the conversion of image formats and extensions quickly and effectively.

2. Batch Image Extension Change with Quick IMG Converter
If you need to batch change image extensions for compatibility with a new format, using Quick IMG Converter software might be the most effective solution.
Download the software: Download Quick IMG Converter
Step 1: Download and install Quick IMG Converter on your computer.
Step 2: On the main interface, select Add to add the images you want to convert extensions for on the system (you can select multiple images at once - no limit).

Step 3: Once you've selected the images you want to change the format and extension for, you need to choose the new format and extension for the images.

Step 4: Finally, select Start to initiate the conversion of file extensions and formats for the images.

Step 5: To view the images with the modified extensions and formats, select the Folder icon.

3. How to directly change image extensions on Windows (without altering the image format)
On the Windows operating system, users can directly adjust image file extensions through file extensions. This method alters only the image extension without affecting the image format. It is recommended for common image formats such as JPG and PNG; for other formats, using software to change both format and extension is more reliable.
Step 1: To directly modify image file extensions on Windows, users need to enable the display of file extensions. Open any folder, then select View (1) and check File name extensions (2).
Next, open any folder, then select View (1) and check File name extensions (2).

Step 2: Afterward, right-click on the image file you wish to change the extension for and choose Rename.

Step 3: Following this, you need to remove the file extension part (after the dot '.') and replace it with the new extension you want to apply. In this case, the software trick will change the extension from JPG to PNG.

Step 4: Finally, press Enter to complete. In the warning window about changing the file extension, choose Yes to finish.

Step 5: That's it! You have successfully completed the process of changing the format, extension, and file extension of the image. Now, feel free to open it with other image viewing software.

In this article, the software trick has guided you on how to quickly and effectively convert image extensions. Wishing you a wonderful day!
