PNG vs JPG vs WebP vs AVIF: Which Format Should You Use?
There is no universally best image format: photographs, interface graphics, archives, and web pages have different requirements.
Read guide →Rename Images
Rename many images with a prefix, base name and auto-numbering, then download a ZIP. Files are renamed byte-for-byte — never re-encoded.
Drop images here or click to browse
The preview table updates live as you tweak the pattern.
Reviewed 2026-07-12
Free Rename Images – how it works
Rename Images lets you rename a batch of photos online in seconds — no software, no upload. Set a filename template with a custom prefix, separator, and auto-incrementing number, and every image in your batch gets a clean, consistent filename. This is the fastest way to organise a folder of camera photos, screenshots, or downloads before uploading them anywhere.
Processing is entirely local to your browser. The renamed files are packaged into a ZIP for a single download. The original files on your device are not modified.
Common patterns: "vacation-001.jpg", "product-photo-1.png", "screenshot-2026-01-01.webp". The numbering starts at the value you specify and increments automatically.
Supported formats
- JPEG
- PNG
- WebP
- AVIF
- GIF
- BMP
- TIFF
- HEIC
How to use Rename Images online
- Add your images. Drop the image files you want to rename — any mix of JPG, PNG, WebP, or other formats. Drag to set the order before renaming.
- Set the name pattern. Enter a base name (e.g. "product-photo"), choose a separator ("-", "_", or none), and set the starting number. A preview shows the first few output names.
- Rename and download. Click Rename. The renamed files are bundled into a ZIP file that downloads instantly. Extract and review the filenames.
When to use it
- Rename a batch of camera photos like "IMG_4521.jpg" into descriptive names like "paris-trip-001.jpg" before sharing.
- Standardise screenshot filenames before uploading to a project management tool or shared drive.
- Rename product photos with consistent numbering before uploading to an e-commerce platform.
- Organise a folder of downloaded images with a uniform naming convention.
Known limitations
- All files in the batch receive the same base name — different prefixes per file are not supported in a single operation.
- The rename is applied to the filename only — EXIF data and image content are unchanged.
- Very large batches (hundreds of high-resolution images) may take a moment to ZIP in the browser.
Frequently asked questions
How do I rename JPG files online for free?
Add your JPGs, set the base name and starting number, and click Rename. All files are renamed according to the pattern and downloaded as a ZIP — no account required.
Can I rename multiple photos at once?
Yes. The tool processes the entire batch at once. Each photo receives a sequential number appended to the base name you set.
Are my images uploaded to rename them?
No. Renaming is handled entirely in your browser. The files are never sent to any server.
Does renaming change the image quality or EXIF data?
No. Only the filename changes. The image pixels, format, and EXIF metadata are completely untouched.
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