File Rename Tool

A user contacted me because they were struggling with a basic but repeated problem. They had folders full of files from different projects, all named randomly. Renaming a few files was manageable, but doing it again and again for large folders became frustrating. The built-in file manager felt slow, and command-line tools were too complicated for their daily work. Upload-based tools didn’t feel safe because the files were private.

To help, I showed them a simple way to rename files directly in the browser, without installing anything or uploading files anywhere. They could select a folder, preview the changes, and rename everything in one go. It removed the extra steps and let them focus back on their work.

The user didn’t care about advanced features — they just wanted the task done quickly and safely. Solving that small problem ended up saving them a lot of time.

I built RenameTool because I kept running into the same frustrating problem: renaming files should be easy, but every solution out there felt either too complicated, too slow, or unsafe.

Most tools require installs, command-line skills, or uploading your files to someone else’s server — and that just didn’t feel right for something as basic as renaming a folder full of files.

So I made RenameTool — a privacy-first, browser-based file renamer that runs entirely on your own device.
No signup. No account. No ads. No uploads. Just:

✅ Select a folder
✅ Set rename rules
✅ Preview changes
✅ Rename files in seconds

Especially useful for:

• Designers with messy asset folders

• Students with tons of project files

• Developers organizing builds/logs

• Anyone who hates renaming files manually

It even handles batch renaming quickly — and everything stays local in your browser.

Would love to hear your thoughts, feedback, or feature ideas! 🚀