ConvertorLab

Bulk Rename Images and Files

Give a whole folder of photos or files clean, numbered names in one step. Set a base name, separator and numbering, preview every new name, and download a ZIP. Free, and your files stay on your device.

Import and settings

Add files, build a clear filename pattern, and preview the final names before export.

Drag & drop image files here or

Supports JPG, PNG, WebP, SVG, HEIC, HEIF, and PDF. Limits: max 500 files or 2 GB total.

Filename preview

Review old and new names before downloading the renamed batch.

Rename many files at once

Camera and phone files come with names like IMG_20260914_183022.jpg that tell you nothing. This batch renamer gives a whole set of files clean, consistent names in one go, such as wedding-001.jpg, wedding-002.jpg, or product-red-shirt-1.webp for an online shop.

It works with photos, PDFs and other files. The files themselves aren't changed, only their names, and you download them as a ZIP.

How to batch rename files

  1. Add the files. Up to 500 at once.
  2. Set the pattern. Type a base name, choose the separator, starting number and number of digits.
  3. Check the preview next to each file to see the new name.
  4. Download the ZIP with all the renamed files.

Naming patterns that stay organized

Event photosevent-name-2026-001.jpg. The date and padded numbers keep the order correct.
Product images for SEObrand-product-color-1.webp. Search engines read image file names, so describe what's in the picture.
Scanned documentslastname-document-type-page-01.pdf
Client deliveryclient-project-final-01.png

Use lowercase letters, numbers and hyphens. Spaces and symbols like / or ? cause trouble on some websites and systems.

Free and private

Renaming and zipping happen in your browser, so your files are never uploaded. There's no sign-up and no limit beyond 500 files per batch.

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Batch rename questions

How do I rename multiple files at once?

Add the files, type a base name and choose the numbering, then download the ZIP with every file renamed.

Does renaming change the image quality?

No. Only the file name changes. The file contents stay exactly the same.

Can I rename PDFs and other files?

Yes. Photos, PDFs and other file types can be renamed in the same batch.

Why should I rename images for SEO?

Search engines read image file names. A descriptive name like red-cotton-shirt.jpg helps an image show up in image search.

Are my files uploaded?

No. The renamed files are packed into a ZIP in your browser.