Batch File Renamer

Rename files safely and download unchanged contents in a ZIP.

Tool options · presets, sharing & more

Presets & sharing: options only, never files, text or passwords. Undo/redo: editable form values, not file selection or generated results.

How to Use Batch File Renamer

Choose local files and select the rename, split or join operation.

Check naming patterns and file order. Joining requires the original manifest and every listed part.

Run the tool and review the resulting names or SHA-256 verification report.

Download the ZIP or every part and manifest. Keep the original file until you have verified the result.

What This Tool Does

Rename files safely and download unchanged contents in a ZIP. Read the format requirements and practical limits in the interface before processing.

Common Use Cases

Prepare utilities outputs without sending your source content to an external processing service.

Inspect a downloadable result before using it in your own project or document.

Privacy & Processing

This tool processes files and input in this browser tab. Its processing code does not upload them to a server. Loading this page and fetching uncached app files uses an internet connection. Optional usage analytics requires your consent and excludes input, filenames, passwords and generated content. Form undo history and result transfers stay in session memory. Explicitly saved presets contain approved settings only.

Offline use is not verified for this tool. Keep an internet connection available to load its page, code and any additional dependencies.

Frequently Asked Questions

What should I check before using Batch File Renamer?

Rename files safely and download unchanged contents in a ZIP. Read the format requirements and practical limits in the interface before processing.

Does this tool work offline?

Offline use is not verified for this tool. Keep an internet connection available to load its page, code and any additional dependencies.

Can I keep my original file?

Yes. Processing creates a separate result and does not overwrite your source file. Keep the original until you have reviewed the output.