Renym — Batch File Renamer
Batch File Renamer
Rename hundreds of files with visual pipelines — regex, numbering, case changes.
View on the App StoreHow to Rename Multiple Files on Mac
Renaming files one by one wastes hours you could spend on actual work. macOS gives you a few built-in options, but they fall apart the moment you need anything beyond basic sequential naming.
Read moreHow to Batch Rename Photos on Mac
Camera files named IMG_4872.JPG tell you nothing about what is in the photo or when the shoot happened. Renaming them manually is not realistic when you have hundreds from a single session.
Read moreHow to Rename Files with Regex on Mac
When file names follow patterns — dates embedded in text, version numbers, random prefixes — simple find-and-replace cannot handle them. Regular expressions can, but macOS does not offer regex renaming natively.
Read moreMac Finder Rename Is Limited — Here's What It Can't Do
Finder's rename tool handles the basics, but the moment you need regex, multi-step operations, or a real preview, it cannot help. Here is where it falls short and what to use instead.
Read moreName Mangler Alternative for Mac
Looking for a file renaming app that handles regex, sequential numbering, and multi-step pipelines without the learning curve of legacy tools? Here is a modern option.
Read moreHow to Rename Hundreds of Files at Once on Mac
Renaming ten files by hand is tedious. Renaming hundreds is impossible without the right tool. macOS has limited built-in options, and the Terminal approach risks irreversible mistakes.
Read moreHow to Add Sequential Numbers to File Names on Mac
Files that need to stay in a specific order — slides, frames, pages, chapters — only sort correctly if they have sequential numbers with consistent padding.
Read moreHow to Remove Characters from File Names in Bulk on Mac
File names cluttered with extra characters, random prefixes, or unwanted suffixes are hard to search and sort. Cleaning them up one by one is not realistic when you have dozens or hundreds.
Read moreHow to Change File Extensions in Batch on Mac
Wrong file extensions break workflows, confuse apps, and cause files to open in the wrong program. Changing them one at a time is tedious. Doing it in Terminal risks mistakes without a preview.
Read moreRename Files with Drag and Drop on Mac
Most rename tools make you navigate to your files through a file picker. If you already have the files in a Finder window, you should be able to drag them straight into the renaming tool.
Read moreFile Naming for Photographers on Mac — Automate Your Workflow
A consistent file naming system saves hours of searching and prevents lost images. Camera-generated names like IMG_4872 tell you nothing about the shoot, client, or date.
Read moreHow to Rename Files to Lowercase on Mac
Mixed-case file names break links, cause duplicate uploads, and look inconsistent in a shared folder. Converting a whole batch to lowercase by hand is not worth anyone's time.
Read moreHow to Add Date to File Names on Mac
Files without dates in their names are hard to sort chronologically and impossible to tell apart when several versions share the same base name. Adding dates to a whole folder by hand is slow and error-prone.
Read moreHow to Remove Spaces from File Names on Mac
Spaces in file names cause problems in Terminal commands, URLs, and scripts that were not written to handle them. Cleaning up a whole folder one file at a time is not a good use of an afternoon.
Read moreHow to Rename Files for Web Upload on Mac — Slugify in Bulk
Files with spaces, capital letters, and special characters cause broken links and messy URLs once uploaded to a website. Converting a batch into clean, web-safe names by hand does not scale.
Read moreA Better Rename Alternative for Mac
A Better Finder Rename has been a longtime option for Mac batch renaming, but its dense, dialog-heavy interface is not for everyone. Here is what to look for if you want the same power with less friction.
Read moreHow to Rename Screenshots on Mac — Remove 'Screenshot' Prefix
macOS names every screenshot 'Screenshot 2026-09-06 at 3.42.17 PM.png,' which is accurate but clunky. Cleaning up a folder full of them one file at a time wastes time you do not have.
Read moreBest Bulk Rename Utility for Mac
There are a handful of dedicated bulk rename tools for Mac, each with a different balance of power and simplicity. Here is what to actually compare before picking one.
Read moreHow to Rename Video Files in Batch on Mac
Video files exported from a camera, screen recorder, or editing app rarely have useful names. Sorting through a folder of clips named by timestamp alone makes editing and archiving harder than it should be.
Read moreFind and Replace in File Names on Mac
Find and replace across file names sounds simple, but doing it well requires more control than a basic text swap — case sensitivity, whole-word matching, and handling text that appears more than once.
Read moreHow to Rename Files with a Counter on Mac — 001, 002, 003
A counter appended to file names keeps a set in order and prevents naming collisions, but getting the padding, starting number, and position right takes more than Finder's basic numbering.
Read moreOrganize Your Downloads Folder on Mac by Renaming Files in Bulk
A Downloads folder full of files named 'file(3).pdf' and 'unnamed-1234567.zip' is nearly impossible to search. Cleaning up years of accumulated downloads by hand is not a realistic weekend project.
Read moreHow to Rename Files Before Uploading on Mac
Many upload systems reject or mishandle files with spaces, special characters, or inconsistent naming. Fixing a batch right before an upload deadline, one file at a time, adds stress you do not need.
Read moreHow to Trim File Name Length on Mac
Long file names get truncated in file lists, cause errors on systems with path-length limits, and are awkward to work with in scripts. Shortening a batch of names one at a time is slow going.
Read moreHow to Rename Music Files on Mac — Artist, Album, Track
Downloaded or ripped audio files often come with cryptic file names that do not match their actual metadata. Sorting a library that way makes browsing by artist, album, or track nearly impossible.
Read moreMac Automator File Rename Is Confusing — Try a Visual Alternative
Automator can technically batch rename files, but building and debugging a workflow for it takes far longer than the renaming task itself. Here is why, and a more direct way to get the same result.
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