File Rename Batch

Quick answer: Batch-rename files with prefixes, numbering, and find-replace rules — with a preview before anything changes. Open 批量重命名 — everything runs locally in your browser, and files never leave your device.

Steps

1. Add files or paste the filename list.
2. Configure rules: prefix/suffix, numbering, find-replace, extension normalization.
3. Review the rename preview table.
4. Download the renamed files (or copy the mapping).

Important notes

• Preview before applying — zero-padded numbering (001 vs 1) decides sort order everywhere downstream.
• For photos renamed by date, confirm timezone and capture-time format.
• Lowercase English names maximize compatibility when sending files onward.

Common questions

Reversible? Keep the originals; the mapping table restores names.

Regex support? Simple patterns are supported; chain steps for complex rules.

Pro tips

Design the numbering before you batch-rename, because zero-padding determines sort order in every file browser and download manager afterwards. For sets under 100 files use two digits (01-99), under 1000 use three. If files arrive from a scanner or camera with embedded sequence numbers, a find-replace that strips the device prefix first makes your own numbering cleaner. And keep the rename mapping table with the files — when a colleague asks for "the file that used to be called X", the mapping is the only reliable answer.

Can I rename by capture date? If the filename list includes dates you can build prefixes from them with find-replace; true EXIF-date renaming needs a desktop tool.