{"id":55,"date":"2025-11-04T19:27:54","date_gmt":"2025-11-04T19:27:54","guid":{"rendered":"https:\/\/renamer.io\/blog\/?p=55"},"modified":"2025-11-05T23:49:34","modified_gmt":"2025-11-05T23:49:34","slug":"how-to-rename-multiple-files-at-once-a-complete-step-by-step-guide-for-windows-mac-and-linux","status":"publish","type":"post","link":"https:\/\/renamer.io\/blog\/how-to-rename-multiple-files-at-once-a-complete-step-by-step-guide-for-windows-mac-and-linux\/","title":{"rendered":"How to Rename Multiple Files at Once: A Complete Step-by-Step Guide"},"content":{"rendered":"\n<p>Renaming files one at a time is a tedious task, especially when you&#8217;re dealing perhaps thousands of files. When you&#8217;re organizing your photos library, cleaning out downloads or reorganizing folders for projects, knowing how to efficiently rename multiple files can save you hours of. In this tutorial I&#8217;ll show you various methods that are practical &#8211; that range from integrated OS tools, to robust commands, and an easier and modern solution with <a href=\"https:\/\/renamer.io\">Renamer.io<\/a>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/renamer.io\/blog\/wp-content\/uploads\/2025\/11\/How-to-Rename-Multiple-Files-at-Once-1024x683.png\" alt=\"\" class=\"wp-image-80\" srcset=\"https:\/\/renamer.io\/blog\/wp-content\/uploads\/2025\/11\/How-to-Rename-Multiple-Files-at-Once-1024x683.png 1024w, https:\/\/renamer.io\/blog\/wp-content\/uploads\/2025\/11\/How-to-Rename-Multiple-Files-at-Once-300x200.png 300w, https:\/\/renamer.io\/blog\/wp-content\/uploads\/2025\/11\/How-to-Rename-Multiple-Files-at-Once-768x512.png 768w, https:\/\/renamer.io\/blog\/wp-content\/uploads\/2025\/11\/How-to-Rename-Multiple-Files-at-Once-380x253.png 380w, https:\/\/renamer.io\/blog\/wp-content\/uploads\/2025\/11\/How-to-Rename-Multiple-Files-at-Once-800x533.png 800w, https:\/\/renamer.io\/blog\/wp-content\/uploads\/2025\/11\/How-to-Rename-Multiple-Files-at-Once-1160x773.png 1160w, https:\/\/renamer.io\/blog\/wp-content\/uploads\/2025\/11\/How-to-Rename-Multiple-Files-at-Once.png 1536w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Why Renaming Files in Bulk Matters<\/h2>\n\n\n\n<p>I&#8217;ve found myself often drowning in the sea of muddled names for files &#8211; screenshots marked &#8220;Screenshot (1).png&#8221;, &#8220;Screenshot (2).png&#8221; and the list goes on. It&#8217;s a pain especially when you need to arrange the files for personal or professional projects. A well-named structure for files improves searchability as well as collaboration and automation.<\/p>\n\n\n\n<p>Here&#8217;s the reason why bulk renaming files make an enormous difference:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Organization: Organizes and keeps related files together in a logical way.<\/li>\n\n\n\n<li>Consistency: Prevents confusion while working with various systems.<\/li>\n\n\n\n<li>Automation: Tools and scripts can help process files more efficiently when names are based on patterns.<\/li>\n\n\n\n<li>Professionalism: Properly naming your business appears better and can be beneficial in business or client environments.<\/li>\n<\/ul>\n\n\n\n<p>Let&#8217;s now look at how to do it.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Renaming Multiple Files at Once on Windows<\/h2>\n\n\n\n<p>Windows offers a variety of ways to change the name of files in bulk, ranging from basic File Explorer tricks to advanced Command Prompt or PowerShell commands.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Renaming Files via File Explorer<\/h3>\n\n\n\n<p>This is the most simple method to follow and doesn&#8217;t require any technical skills.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Step-by-step:<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Navigate to the folder that contains your files.<\/li>\n\n\n\n<li>Pick all the files that you want to change their names (Ctrl + A or Shift + C).<\/li>\n\n\n\n<li>Right-click on the first file and choose Rename.<\/li>\n\n\n\n<li>Write your name as your base for the year, for instance, &#8220;HolidayPhoto&#8221;.<\/li>\n\n\n\n<li>Press Enter.<\/li>\n<\/ol>\n\n\n\n<p>Windows will automatically rename selected files to &#8220;HolidayPhoto (1)&#8221;, &#8220;HolidayPhoto (2)&#8221;, etc. It&#8217;s fast, but it&#8217;s isn&#8217;t as flexible.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Pros:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Simple and quick.<\/li>\n\n\n\n<li>No additional tools are needed.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Cons:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>You aren&#8217;t able to add prefixes or suffixes or modify extensions in a hurry.<\/li>\n\n\n\n<li>There is no assistance for patterns with advanced features or dynamic substitutions.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2. Using Command Prompt<\/h3>\n\n\n\n<p>For those who want some control The Command Prompt (cmd) offers the option of batch renaming using simple commands.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Example: Change the name of the entire <code>.txt<\/code> files to <code>.log<\/code><\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>ren *.txt *.log <\/code><\/pre>\n\n\n\n<p>This command replaces <code>.txt<\/code> extension of all files within the folder with <code>.log<\/code>.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Example Prefix: Add a prefix all files.<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>for %f for %f (*. *) do ren \"%f\" \"new_%f\"<\/code><\/pre>\n\n\n\n<p>This will add &#8220;new_&#8221; in front of every name of a file within the folder.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Example Replace spaces using underscores<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>for %f in (* *) do ren \"%f\" \"%f:_=_%\"<\/code><\/pre>\n\n\n\n<p>The following replaces underscores with spaces, which makes filenames command-line easy.<\/p>\n\n\n\n<p>Although they&#8217;re powerful however, these commands can become complicated quickly. If you make mistakes, there&#8217;s not an undo option, which can be risky when you rename hundreds of files.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. Using PowerShell<\/h3>\n\n\n\n<p>PowerShell provides more options over Command Prompt, especially for patterns-based Renaming.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Example: Replace a portion of the name<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>Get-ChildItem *.txt | Rename-Item -NewName  <\/code><\/pre>\n\n\n\n<p>This replaces &#8220;old&#8221; with &#8220;new&#8221; in all <code>.txt<\/code> filenames.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Example: Add numbering sequence<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>$i=1; Get-ChildItem *.jpg | ForEach-Object  <\/code><\/pre>\n\n\n\n<p>This generates filenames like Photo_1.jpg, Photo_2.jpg, and the like.<\/p>\n\n\n\n<p>PowerShell is perfect for users who have advanced skills or repetitively task renaming across folders. If, however, you&#8217;re looking for something simpler and more visually appealing The next option could be ideal.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Renaming Files is a breeze by using Renamer.io<\/h2>\n\n\n\n<p>After trying every method I came across an easier way to do it by using <a href=\"https:\/\/renamer.io\">Renamer.io<\/a>. It&#8217;s a dedicated bulk-file tool for renaming that is specifically designed specifically for Windows, Mac, and Linux that makes large-scale renaming as easy as it is possible.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Why I Prefer Renamer.io<\/h3>\n\n\n\n<p>Contrary to command-line tools Renamer.io provides an interface that is visual. I can see precisely the filenames that will change prior to making sure. The preview alone saved me from many errors.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">How to Use Renamer.io &#8211; Step-by-Step<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Install and download the app on <a href=\"https:\/\/renamer.io\">Renamer.io<\/a>.<\/li>\n\n\n\n<li>Start the application, and then drag your folders or files to the main screen.<\/li>\n\n\n\n<li>Choose your renaming pattern:\n<ul class=\"wp-block-list\">\n<li>Add suffixes or prefixes (e.g., &#8220;Project_&#8221;, &#8220;_Final&#8221;).<\/li>\n\n\n\n<li>Replace text segments.<\/li>\n\n\n\n<li>Add numbers automatically.<\/li>\n\n\n\n<li>Change extensions of files or change the case (UPPERCASE lowercase).<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Watch the changes live in real-time. You&#8217;ll see both new and old names for the files.<\/li>\n\n\n\n<li>Click Rename when you&#8217;re happy.<\/li>\n<\/ol>\n\n\n\n<p>That&#8217;s it. All files selected are immediately renamed.<\/p>\n\n\n\n<p>What I love the my most about it is that Renamer.io is the same for Windows, macOS, and Linux. So, whether I&#8217;m cleaning up downloads on my Windows PC or organizing media on my MacBook I use the same interface on all three platforms.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Renaming Multiple Files on Mac<\/h2>\n\n\n\n<p>macOS users can do it simple since Finder comes with an integrated bulk renaming tool.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Using Finder&#8217;s Built-in Rename Tool<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Step-by-step:<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Choose all files you wish to change the name of in Finder.<\/li>\n\n\n\n<li>Right-click and select Rename Items.<\/li>\n\n\n\n<li>Choose a renaming option:\n<ul class=\"wp-block-list\">\n<li>Replace Text<\/li>\n\n\n\n<li>Add Text<\/li>\n\n\n\n<li>Format (for sequential numbers)<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Input the pattern you want to use or text.<\/li>\n\n\n\n<li>Click Rename.<\/li>\n<\/ol>\n\n\n\n<p>Finder instantly changes the name of selected files and provides you with a an overview of what&#8217;s to come.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Example:<\/h4>\n\n\n\n<p>If you select &#8220;Format&#8221; and type &#8220;VacationPhoto&#8221; the Finder will rename your files to &#8220;VacationPhoto 1&#8221;, &#8220;VacationPhoto 2&#8221; and so on.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Pros:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Simple and clean.<\/li>\n\n\n\n<li>Integrated into macOS.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Cons:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>There are a limited number of options for complicated pattern changes.<\/li>\n\n\n\n<li>There is no scripting capability.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2. Using Terminal on macOS<\/h3>\n\n\n\n<p>For the more experienced users, macOS Terminal offers flexible options that are similar to Linux. The <code>mv<\/code> command (move) can change the name of files. When used with loops, it is extremely powerful.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"570\" src=\"https:\/\/renamer.io\/blog\/wp-content\/uploads\/2025\/11\/mac-terminal-rename-command-1024x570.png\" alt=\"\" class=\"wp-image-78\" srcset=\"https:\/\/renamer.io\/blog\/wp-content\/uploads\/2025\/11\/mac-terminal-rename-command-1024x570.png 1024w, https:\/\/renamer.io\/blog\/wp-content\/uploads\/2025\/11\/mac-terminal-rename-command-300x167.png 300w, https:\/\/renamer.io\/blog\/wp-content\/uploads\/2025\/11\/mac-terminal-rename-command-768x427.png 768w, https:\/\/renamer.io\/blog\/wp-content\/uploads\/2025\/11\/mac-terminal-rename-command-1536x855.png 1536w, https:\/\/renamer.io\/blog\/wp-content\/uploads\/2025\/11\/mac-terminal-rename-command-2048x1140.png 2048w, https:\/\/renamer.io\/blog\/wp-content\/uploads\/2025\/11\/mac-terminal-rename-command-380x211.png 380w, https:\/\/renamer.io\/blog\/wp-content\/uploads\/2025\/11\/mac-terminal-rename-command-800x445.png 800w, https:\/\/renamer.io\/blog\/wp-content\/uploads\/2025\/11\/mac-terminal-rename-command-1160x645.png 1160w, https:\/\/renamer.io\/blog\/wp-content\/uploads\/2025\/11\/mac-terminal-rename-command.png 2322w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Example: Add a prefix to all JPG files.<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>for f in *.jpg; do mv \"$f\" \"new_$f\"; done <\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">Example Change underscores to spaces.<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>for f in *\\ *; do mv \"$f\" \"$\"; done <\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">Example Replace the word in filenames<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>for f in *old*; do mv \"$f\" \"$\"; done <\/code><\/pre>\n\n\n\n<p>The small scripts that they use can process a large number of files in just a few seconds. The trick is to test the scripts on a small amount first to be sure.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Renaming Files in Bulk on Linux<\/h2>\n\n\n\n<p>Linux users have a myriad of options, from basic shell commands to more advanced software for renaming.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Utilizing the <code>Rename<\/code> Command<\/h3>\n\n\n\n<p>The <code>rename<\/code> command in Linux is among the most efficient tools to batch file changing names.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Example: Change all <code>.txt<\/code> to <code>.log<\/code><\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>change name 's\/.txt\/.log*.txt *.txt<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">Example Use the following example: Replace &#8220;draft&#8221; with &#8220;final&#8221;<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>change name to's\/draft\/final*.docx *.docx<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">Example: Add a numbering system to files<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>a=1; for i in *.png; do new=$(printf \"image_%03d.png\" \"$a\"); mv \"$i\" \"$new\"; let a=a+1; done <\/code><\/pre>\n\n\n\n<p>There are also GUI-based applications such as &#8220;pyRenamer&#8221; or &#8220;KRename&#8221; If you prefer a more visual interface.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. Using Nautilus or Dolphin File Manager Extensions<\/h3>\n\n\n\n<p>If you&#8217;re using GNOME or KDE you can make use of extensions that are renamed bulk.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nautilus Rename Tool: Right-click &#8211; Rename &#8211; Use patterns.<\/li>\n\n\n\n<li>KRename Available within KDE&#8217;s Dolphin manager, with advanced filters.<\/li>\n<\/ul>\n\n\n\n<p>Both permit live previews of the program, batch processing and custom-designed naming patterns without using the terminal.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Tips for Safer Bulk Renaming<\/h2>\n\n\n\n<p>After working for years with thousands of documents, here are the lessons I&#8217;ve learned<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Always back up your data prior to performing large renaming operations.<\/li>\n\n\n\n<li>Try out patterns with a small sample before distributing them all over the world.<\/li>\n\n\n\n<li>Avoid special characters such as <code>?<\/code>, <code>:<\/code>, or <code>*<\/code> in filenames.<\/li>\n\n\n\n<li>Keep consistent naming formats for related files (for example, &#8220;project_version_date&#8221;).<\/li>\n\n\n\n<li>Preview changes as often as it is possible, particularly in the case of GUI tools such as Renamer.io.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">Common Mistakes to Avoid<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Overwriting files If two files that have been renamed are given identical names, one may be replaced.<\/li>\n\n\n\n<li>Use absolute paths in the wrong way When using commands, incorrectly placed slashes can lead to mistakes.<\/li>\n\n\n\n<li>Inconsistent numbering: Use that you have zero-padding (001, 022 and 033) to ensure that files are ordered correctly.<\/li>\n\n\n\n<li>Renaming extensions without examining extensions can lead to compatibility issues.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Frequently Asked Questions (FAQ)<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Can I undo a bulk rename?<\/h3>\n\n\n\n<p>If you&#8217;re using Renamer.io There is an undo option that allows you to instantly revert. File Explorer and Finder, however, don&#8217;t offer an undo history after you quit the application.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Does renaming files alter the contents of files?<\/h3>\n\n\n\n<p>Renaming only changes the file name and not the actual content.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Can I rename files within subfolders automatically?<\/h3>\n\n\n\n<p>Yes. In Renamer.io you can select to add subdirectories. On the command line, you may make use of loops that recurse, as well as the <code>find<\/code> command in Linux and macOS.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">What&#8217;s the safest method to change the names of hundreds of files?<\/h3>\n\n\n\n<p>I would recommend using a specialized tool like <a href=\"https:\/\/renamer.io\">Renamer.io<\/a> since it offers live previews and allows you to reverse the changes if you need to.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Final Thoughts<\/h2>\n\n\n\n<p>Bulk renaming isn&#8217;t only about saving time. It&#8217;s about bringing order to the chaos of digital data. No matter if you&#8217;re running Windows, macOS, or Linux you are now able to be in complete control of the filenames you use. For creators, professionals or anyone who appreciates the appearance of a tidy file system provides clarity.<\/p>\n\n\n\n<p>Personally, I use <a href=\"https:\/\/renamer.io\">Renamer.io<\/a> for most of my renaming requirements. It is a combination of an automation&#8217;s power with the ease of drag-and-drop. After you&#8217;ve tried it, you&#8217;ll be amazed by how you&#8217;ve ever done without it.<\/p>\n","protected":false},"excerpt":{"rendered":"Renaming files one at a time is a tedious task, especially when you&#8217;re dealing perhaps thousands of files.&hellip;\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[26,25,23,24,22,12,21],"class_list":{"0":"post-55","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-software","7":"tag-bulk-name-renaming","8":"tag-command-prompt","9":"tag-file-organization-terminal","10":"tag-mac-linux-file-management","11":"tag-rename-files-batch-name-renaming","12":"tag-renamer-io","13":"tag-windows"},"_links":{"self":[{"href":"https:\/\/renamer.io\/blog\/wp-json\/wp\/v2\/posts\/55","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/renamer.io\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/renamer.io\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/renamer.io\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/renamer.io\/blog\/wp-json\/wp\/v2\/comments?post=55"}],"version-history":[{"count":3,"href":"https:\/\/renamer.io\/blog\/wp-json\/wp\/v2\/posts\/55\/revisions"}],"predecessor-version":[{"id":82,"href":"https:\/\/renamer.io\/blog\/wp-json\/wp\/v2\/posts\/55\/revisions\/82"}],"wp:attachment":[{"href":"https:\/\/renamer.io\/blog\/wp-json\/wp\/v2\/media?parent=55"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/renamer.io\/blog\/wp-json\/wp\/v2\/categories?post=55"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/renamer.io\/blog\/wp-json\/wp\/v2\/tags?post=55"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}