Renaming files should be fast, private, and simple.

What we build

Smart Bulk Renamer is a browser-based online bulk renamer that handles hundreds to thousands of files at once. It supports pattern-based naming, find and replace, extension normalization, sequential numbering, case conversion, and a smart OCR mode that suggests names from text and dates detected inside your documents. Conflict detection and instant undo keep large batches safe and predictable.

Local-first by design

Your files never leave your device. Every read, preview, and rename happens locally in your browser session — nothing is uploaded to a server and nothing is stored in the cloud. That makes Smart Bulk Renamer a trustworthy choice for sensitive documents and a genuinely private way to organize your files.

Works everywhere

Because it runs in the browser, the same tool works as a bulk renamer for Windows, Mac, and Linux, and it works on Android and iPhone too. There is nothing to install and no account to create — bookmark it once and it is ready on any machine you sit down at.

Our mission

We want to turn messy folders into clean, searchable, consistent names with the least effort possible, while respecting your privacy. If you have feedback or ideas, we would love to hear from you on our contact page.