Number a list of files 01, 02, 03 - by name, by date, or in your own order
Processed in your browser. Nothing is uploaded. Updated on 25 Oct 2026.Put a number on every file so they sort the way you mean them to: slides for a talk, pages of a scan, scenes of a video, answers for an assignment. Choose where the count starts, how many digits it has and what separates it from the name, and order the files by name, by date or by the clip numbers already in them. Every new name is shown before anything changes.
Choose the folder, or press Choose files and pick the files to number.
Add a number to every file is already on; set Start at and how many Digits the count has.
Pick the Order: Name, Date, or Batches, then clip number; click any name in the After column to edit it.
Press Rename files on my disk, or Download renamed (zip), and press Download the name list for a record.
The Bulk File Renamer gives a folder of files clean names in one step. It was built for AI video clips - Google Flow names every download with the prompt, a clip number and a timestamp - and it works just as well on phone photos, WhatsApp media, screen recordings and anything else a device names for you.
Files made together are kept together. A batch is every file saved within a few minutes of the one before - ten minutes by default, adjustable - because an AI tool saves one batch across several seconds, not in one instant. Batches follow each other in time, and inside a batch the clip number decides the order, not the second each file happened to be written. So a story made over two days, C01 to C05 on the first and C01 to C07 on the second, comes out numbered C01 to C12.
Every new name is shown next to the old one before anything happens, and no two files are ever given the same name. Add find and replace, a prefix or suffix, a change of case, or a number on every file.
The rest of the article, and all 6 questions about Bulk File Renamer, are on the Bulk File Renamer page.
Drop the files on the page, or pick the folder in Chrome or Edge. Every new name is shown beside the old one: timestamps removed, clips numbered in order, and any prefix, suffix or find-and-replace you add. Press Rename and they change in place, or download them as a zip in other browsers.
Leave "Remove timestamps" on. It finds the stamp in every common form - 14 digits, date and time with separators, WhatsApp dates, epochs - removes it, and tidies the underscores or dashes around it. If two files end up with the same name, the second gets " (2)" so nothing is overwritten.
No. Only the name changes; the video is never opened, decoded or re-encoded, so a 4K or 8K file keeps every frame exactly as it was. That is also why a folder of large videos renames in seconds.
Every new name is shown before anything changes, and the page keeps a list of old and new names you can download. To undo a folder rename, drop the renamed files back in and use find and replace, or keep the downloaded list to rename them back.
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On the related tools: HAR Sanitizer – Remove cookies, Authorization headers and tokens from a HAR before sending it to support · Fake File Extension Checker – Spot a file whose extension lies, such as an .exe renamed to .pdf or a .zip named .jpg.