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Batch rename images online

Rename hundreds of photos at once using patterns with numbering, dimensions, dates, original name, and file size. Live preview, ZIP export, no uploads. Works with JPG, PNG, WEBP, GIF, and more in your browser.

Build a pattern with tokens for the original name, sequence number, dimensions, date, and file size, then download every renamed file in a single ZIP. Nothing leaves your browser.

Why batch renaming images matters

Digital cameras and smartphones generate filenames like IMG_4521.jpg or DSC_0032.png that carry no meaning. When you manage hundreds of product shots, event photos, or design assets, descriptive filenames save time during searches, improve SEO when images are published on the web, and keep folder structures navigable for teams.

Manual renaming is tedious and error-prone. A single typo in a sequence breaks sort order, and copy-pasting names across dozens of files wastes minutes that add up over weeks. A pattern-based renamer eliminates human error by applying consistent logic to every file in the batch.

Unlike desktop software that requires installation and often costs money, a browser-based renamer works on any operating system — Windows, macOS, Linux, or Chromebook — without installing anything. Because imgworld processes files locally, your images never travel over the network, which matters when you handle confidential product photos or unreleased creative work.

The pattern system supports tokens for sequential numbers with zero-padding, original filename, pixel dimensions, file size in various units, creation date, and modification date. Combining these tokens lets you build filenames like product-001-1920x1080-2024-03-15.jpg in a single pass across the entire batch.

Common use cases

  • E-commerce product photography: Rename hundreds of product shots with SKU numbers and dimensions so they sort correctly in your CMS and carry SEO-friendly filenames when served on product pages.
  • Event and wedding photography: Apply date-based naming with sequential numbering to thousands of event photos before delivering them to clients or uploading to gallery platforms.
  • Design asset management: Standardize icon, illustration, and UI screenshot filenames across a team so version control diffs stay clean and assets are easy to locate in large repositories.
  • Social media content batches: Prepare scheduled posts by renaming images with platform prefixes and publish dates so your content calendar stays organized without manual tracking.

Technical details

Processing location
All renaming happens in your browser using the File API. No image data is transmitted to any server. The original files on your disk are never modified — you receive new copies inside a ZIP.
Supported formats
Any image format your browser can read: JPG, JPEG, PNG, WEBP, GIF, BMP, TIFF, AVIF, and SVG. The renamer does not re-encode pixels, so the output is byte-for-byte identical to the input.
Pattern tokens
{n} sequential number, {name} original name without extension, {fullname} full original name, {width} and {height} pixel dimensions, {date} creation date, {moddate} modification date, {size} human-readable size, {sizekb} size in KB, {sizeb} size in bytes.
Output format
Single files download directly. Batches of two or more files are bundled into a ZIP archive generated client-side with JSZip, keeping the download to a single click.

How to batch rename images online

Rename multiple images at once with custom patterns and download them as a ZIP.

  1. Drop one or more images into the renamer or click to pick them from your device.
  2. Type a pattern such as image-(n) and click variables to insert tokens like (name), (width), or (date).
  3. Set a starting number and zero padding to control the sequence.
  4. Review the live preview, then click Rename and Download ZIP to save every renamed file in one archive.

Frequently asked questions

How many images can I rename at once?

There is no hard limit. The renamer handles large batches because everything runs locally. Performance scales with your device's memory and CPU.

Which variables can I use in the pattern?

You can use {n} for the file number, {name} for the original name without extension, {fullname} for the full original name, {width} and {height}, {date} and {moddate}, plus {size}, {sizekb}, and {sizeb}.

Are file extensions changed?

No. The renamer keeps each file's original extension. Use the converter if you also need to change formats.

Does renaming affect image quality?

No. The renamer copies the original file bytes into the ZIP with a new filename. No re-encoding or pixel manipulation occurs, so quality is preserved exactly.

Can I preview names before downloading?

Yes. The live preview updates instantly as you type your pattern, showing the exact output filename for every image in the batch before you commit to the download.