Category: Developer tools
Batch File Renamer
Plan a bulk rename and export it as CSV
Choose a batch of files, set a find/replace, prefix, suffix or sequence rule, and see every resulting name before you act. This only builds a plan and a CSV; it never renames a file on your device.
This only builds a plan and a CSV file. Nothing on your device is renamed, and no file is uploaded.
Everything on this page is processed in your browser. Nothing is uploaded.
What this tool does
Renaming a folder of files by hand is slow and error-prone, but giving a web page permission to rename files on your disk is not something a browser allows anyway. This tool picks the middle ground used by careful file management: it reads the names of the files you choose, applies find/replace, prefix, suffix, case and sequence-numbering rules, and shows the full before/after table with any name collisions flagged. Export the plan as a CSV and use it as a checklist, or as input to whatever bulk-rename tool your operating system provides. The files themselves are never modified, moved, or uploaded — only their names are read.
How to use it
- Choose the files you want a rename plan for.
- Set find/replace, prefix, suffix, case or numbering rules and watch the preview update.
- Download the CSV plan once no names collide.
Privacy
This tool runs entirely in your browser. Your input is never uploaded, stored or shared — closing the tab removes it.
Frequently asked questions
- Does this rename the files on my computer?
- No. Browsers cannot rename files on disk, and this tool would not do so even if it could — it only computes what the new names would be and lets you export that plan.
- What happens if two files end up with the same new name?
- Both rows are flagged with a warning icon and a note beneath the table, so you can adjust the rule before relying on the plan.
- Are my files uploaded anywhere?
- No. Only the file names are read in your browser; the file contents are never accessed or sent anywhere.