Bulk Renamer

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Score7.0

Rank#4 of 30

PriceFree

Free planYes

Runs onLinux, macOS, Windows

Summary

Bulk Renamer is a free, open-source desktop app for batch-renaming files in a selected folder. It runs on Linux, macOS, and Windows, and displays a live preview of each proposed filename before applying changes. Rename patterns can combine find and replace, prefixes or suffixes, sequential numbering, case conversion, and extension changes. Find and replace accepts plain text or regular expressions. The app loads files in the chosen folder but does not include subfolders. Before proceeding, it checks for duplicate destination names and names that already exist on disk; a conflict stops the batch. Undo reverses only the most recent successful batch, and that history is held in memory, so it disappears when the app closes. The app uses the MIT license and requires no account. Its maker notes that unsigned apps may show standard Gatekeeper or SmartScreen warnings on first launch until code signing is set up. Infinite Creation describes its free tools as serving people who create, validate, publish, and teach media.

Who it is for

Bulk Renamer suits people who need to change names for files in a single folder on Linux, macOS, or Windows. Its pattern options also accommodate regular-expression find and replace.

What is good

Live preview shows proposed names before changes.
Rename patterns support numbering and case conversion.
Find and replace accepts regular expressions.
Duplicate or existing-name conflicts block the batch.
Free and open-source under the MIT license.

What to know first

Files in subfolders are not included.
Undo covers only the most recent successful batch.
Undo history disappears when the app closes.
Unsigned launches may show Gatekeeper or SmartScreen warnings.

Verdict

Bulk Renamer provides previewed, configurable batch changes with checks against filename conflicts. Keep its single-folder scope and in-memory, one-batch undo limit in mind.

Bulk Renamer plans and pricing

All plans

Free Free No account · no trial · no watermark · open-source under MIT license infinitecreation.io · 2 Oct 2026

Compared on file renaming software

Free plan: Yesinfinitecreation.io
Platform coverage: multi_platforminfinitecreation.io
Regex renaming: Yesinfinitecreation.io
Rename preview: Yesinfinitecreation.io
Folder renaming: Noinfinitecreation.io
Undo changes: Yesinfinitecreation.io

Facts

Purpose: Bulk Renamer is a native desktop app for batch-renaming files in a selected folder.infinitecreation.io · 2 Oct 2026
Preview: It shows a live preview of each file’s new name before changes are applied.infinitecreation.io · 2 Oct 2026
Rename options: Rename patterns can combine find and replace, prefixes or suffixes, sequential numbering, case conversion, and extension changes.infinitecreation.io · 2 Oct 2026
Regex: Find and replace supports plain text or regular expressions.infinitecreation.io · 2 Oct 2026
Folder scope: The app loads files in the selected folder but does not include subfolders.infinitecreation.io · 2 Oct 2026
Validation: Before renaming, it checks for duplicate destination names and names that already exist on disk; a conflict prevents the batch from proceeding.infinitecreation.io · 2 Oct 2026
Undo limit: Undo reverses only the most recent successful batch and is stored in memory, so it does not persist after the app closes.infinitecreation.io · 2 Oct 2026
License: The app is open-source under the MIT license.infinitecreation.io · 2 Oct 2026
Platforms: Downloads are listed for macOS Apple Silicon and Intel, Windows 64-bit, and Linux .deb or AppImage.infinitecreation.io · 2 Oct 2026
Launch warning: The maker says unsigned apps may show standard Gatekeeper or SmartScreen warnings on first launch until code-signing is set up.infinitecreation.io · 2 Oct 2026
Intended users: The maker describes Infinite Creation’s free tools as being for people who create, validate, publish, and teach media.infinitecreation.io · 2 Oct 2026