Turn messy filenames into organised names.
The focused, high-precision batch file renaming application for macOS. Transform hundreds or thousands of chaotic filenames into consistent, structured naming systems with multi-step transformation recipes, live visual diff preview, APFS case-safe file execution, and 1-click atomic undo.
Zero file uploads. Processing executes locally on your Mac hardware.
1 purchase covers your laptop, desktop, and work machine.
Perpetual $5 license. Pay once with maintenance updates included.
Whether organizing camera memory card imports (`IMG_4021.JPG`), downloading client project invoices (`INV-2026-v2 final (1).pdf`), or formatting web asset slugs, macOS Finder only lets you perform one basic rename rule at a time. It cannot chain operations together, preview filename collisions, or undo mistakes if you rename a whole directory incorrectly.
Hundreds of mismatched names with spaces, random camera prefixes, inconsistent date formats, and duplicate suffixes like " (1)".
Uniform, hyphen-separated, zero-padded, dated filenames previewed in color-coded diffs and safely applied with 1-click atomic undo.
Try the simulated macOS desktop workflow below. Experience the exact speed, output, and calm interface before purchasing.
Why a focused Usefulware utility is dramatically superior to default OS tools or multi-gigabyte bloatware.
Finder's batch rename is crude, cannot chain multi-step recipes (e.g. lowercase + trim + date prefix + sequential numbering), and provides zero undo journal. Shell scripts (zsh) are perilous and prone to catastrophic overwrites.
FilenameFactory combines multi-step recipes into a single live pipeline with real-time diff preview, pre-emptive collision warnings, and an atomic SQLite undo journal.
Clear boundaries between sibling utilities so you always select the exact right tool for the job.
FilenameFactory organizes, renames, and standardizes file and folder names. FolderMatch compares two entire directories to verify backup completeness and find differences.
Choose FilenameFactory when your files have chaotic names and need clean, standardized naming conventions.
Choose FolderMatch when you want to verify that two folders or backup drives contain identical contents.
Every feature is purpose-built to solve this single task with zero unnecessary complexity.
Chain replacement, case formatting, trimming, dates, and zero-padded numbering in a single unified workflow.
Color-coded visual diffs highlight exact changes and pre-emptively flag name duplicates or disk conflicts.
Pre-configured recipes for Web Slugs, Dated Document Archives, Camera Roll Imports, and Clean Normalization.
Mistake? Click Undo to safely restore every file to its previous name in reverse dependency order.
Native Rust filesystem operations handle macOS case-only renames, subfolder structures, and illegal characters.
Insert [date:YYYY-MM-DD], [folder], [index:001], and [ext] tokens effortlessly into your naming patterns.
Batch rename hundreds of files with live diff preview and 1-click atomic rollback.
No monthly renewals or creeping price hikes. Pay once and keep your tool forever.
Use on your desktop Mac, MacBook laptop, and work machine with instant self-service slot transfer.
If it doesn't solve your exact problem cleanly and reliably, we refund your payment without argument.
We are completely upfront about what FilenameFactory does—and what it does not do. Clear boundaries guarantee reliability.
FilenameFactory reads directory structures and metadata locally. Your filenames, directory paths, and file contents are never uploaded or sent to external servers.
100% offline. All pipeline evaluations, diff computations, and file renames occur locally on your Mac's APFS filesystem.
Need multiple utilities? Combine FilenameFactory with any 2 other tools in our 10-app catalogue for $12.00 in the Trio Pack (save 20%), or get all 10 current tools with maintenance updates included for $19.00.
Everything you need to know about Usefulware licensing, activation, and offline guarantees.
Complementary single-purpose utilities designed to connect seamlessly with your workflow:
See if two folders really match. Know what differs. Trust your copy when the evidence says you can.
Compare folder trees, external SSDs, and backups with clear human verdicts and strict read-only safety.
One-time purchase of $5.00. Perpetual license for up to 3 personal Macs. 100% offline core, zero subscriptions, and an unconditional 30-day money-back guarantee.