🔄 File Extension Changer
Upload files and change their extensions in bulk. Convert .txt to .csv, .jpg to .png, .log to .txt, or any extension to any other. Download renamed files as ZIP or generate scripts.
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Drop files here or click to browse
Select multiple files. This tool changes file extensions only — file content is not modified.
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Use Tool →File Extension Changer FAQ
Does this convert file formats?
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No — this tool only changes the file extension (the name). It does not convert the actual file content. For example, renaming .txt to .csv changes the extension but not the data format.
Can I change extensions for specific file types only?
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Yes, use 'Change Specific Extension' mode to target only files with a particular extension (e.g., change all .log files to .txt).
What happens to files without extensions?
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Use the 'Add Extension' mode to add an extension only to files that don't already have one.
Can I remove all extensions?
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Yes, the 'Remove All Extensions' mode strips the extension from every file name.