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Bulk File Renamer - Rename Multiple Files & Download ZIP

Bulk rename multiple files with prefix, suffix, numbering, and find/replace rules, preview the new names, then create a ZIP and download it.

Related tools Duplicate File Finder File Hash Checker
Processing limit: up to 500 files · ZIP total up to 768 MB (may be lower depending on device memory)

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Select multiple files · Uploaded files never leave your device

Prefix and suffix

Sequence number

Cleanup options

Find and replace

Letter case

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Selected files
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Total size
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New filename
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Duplicate name

Planning a Safe Bulk File Rename

Bulk renaming is easiest to reverse when the naming rule is simple, deterministic, and previewed before export. Prefixes, suffixes, numbering, find/replace, case changes, and cleanup rules can be combined, but every extra rule increases the chance of collisions or ambiguous names.

Build the smallest rule that works

Start with one purpose: add a date prefix, normalize spaces, add sequence numbers, or replace a known token. Review the preview before combining multiple transformations. A simple naming rule is easier to audit and reproduce later.

Prevent collisions before creating the ZIP

Number padding and stable prefixes help keep names unique and sortable. If two files would end with the same output name, adjust the sequence, prefix, or source rule before packaging the results.

The browser creates copies, not in-place renames

Web pages cannot freely rename arbitrary files on your disk. This tool prepares renamed output files and packages them for download, so the originals remain unchanged until you deliberately replace or remove them yourself.

Before bulk renaming

Helpful information