A bulk file renamer that respects your files — and your privacy

Bulk File Rename started from a familiar frustration: folders full of IMG_9042_FINAL (2).raw, client exports named final_FINAL.pdf, and codebases mixing CamelCase, snake_case, and spaces. Desktop renamers needed installs and admin rights; online tools wanted us to upload private files to somebody's server; Python one-liners offered no preview and no undo. We wanted the convenience of the web with the privacy of desktop software — so we built it.

The result is a free online bulk file rename toolthat runs entirely in your browser. Drop files into theworkbench, type one naming pattern, verify every change in the live preview table, and download the result as a ZIP. Your file contents never leave your device — the page reads filenames locally and renames them locally. There is no account, no telemetry, and no server storing your data. Read the full guarantee in our privacy policy.

What we believe

• Preview before commit. Every rename is shown side-by-side before anything is downloaded — no surprises.
• Local first. Sensitive filenames stay on your machine. Privacy is architecture, not a toggle.
• Free for everyone. Students, photographers, and teams on Windows, macOS, and Linux get the same full tool.
• Automation-friendly. Every GUI rule exports to a CLI command, so one-off cleanups can grow into repeatable pipelines.

Get in touch

Found a bug, want a preset, or need help with a tricky rename? Head to ourcontact page— we read everything. For how-to answers, theFAQand 2026 guidecover the most common workflows.