Rename Files

Batch rename Images & PDFs with numbering before or after the name — private, fast and free.

Drag & drop files here or

Supports: JPG, PNG, WEBP, SVG, HEIC, HEIF & PDF • Limits: max 500 files or 2 GB total

Bulk Rename Files Online – Free File & PDF Renamer by ConvertorLab

With ConvertorLab’s Rename Tool, you can easily rename multiple files — whether they’re images, PDFs or other document types — all in your browser. Organize your work‑folder, tidy up photo sets or rename PDFs without installing software or uploading sensitive data.

Ideal for photographers, students, professionals and anyone managing many files at once. Once you add your files, you can set a base name, numbering, suffix or prefix, and rename hundreds of files with consistent naming — fast and private.

Fast · Private · No Extra Software

Everything runs locally in your browser — your files never leave your device. The tool supports bulk renaming of PDFs, JPGs, PNGs, HEIC/HEIF images and more, using pattern‑based renaming, automatic numbering and custom prefix/suffix rules.

How to Use the Bulk File Renamer

  1. Drag & drop your files or click “Choose Files” to add them to the tool.
  2. Set your desired naming pattern: base name, starting number, number positioning (prefix/suffix), padding and separator.
  3. Preview the new file names before applying to ensure they look correct.
  4. Click “Rename All” and download the renamed files as a ZIP archive.
  5. Clear your list and repeat as needed — everything is free and no sign‑ups required.

When & Why to Use This Tool

  • Rename large photo sets from your camera with consistent names and numbering for easier sorting.
  • Rename report or contract PDFs so they follow a naming convention before sharing.
  • Clean up mixed‑file folders by applying one clear file‑naming pattern.
  • Prepare files for upload, archiving or printing with a standardized naming scheme.
  • Work locally — preserve privacy and keep full control over your files without cloud uploads.

What “Bulk Rename Files” Means for You

“Bulk renaming” means applying a systematic naming rule across many files at once — for example, using “Holiday_2025_001”, “Holiday_2025_002”, etc., rather than generic names from cameras or downloads. It helps make folders easier to browse, files easier to search and archives more organized.

This tool makes that process smooth: you add your files, define how the new names should look and download the renamed set. No plugins, no server upload — just a browser‑based solution for your file‑management needs.

Key Features

  • Browser‑based: Works immediately, no install needed.
  • Bulk Processing: Rename dozens or hundreds of files in a single operation.
  • Pattern Naming: Set base name + numbering + suffix or prefix + separator.
  • Wide File Support: Images (JPG, PNG, HEIC/HEIF, SVG, etc.) and PDFs.
  • Privacy First: All processing happens locally in your browser; files are not uploaded to external servers.
  • Download as ZIP: Get your renamed files neatly packaged and ready for use.

Before vs After: Generic Names vs Clean Naming

Files like “IMG_20250720_1234.JPG” or “ReportFinal123.pdf” are hard to search and manage. By contrast, a file named “ProjectX_Phase1_001.pdf” or “Vacation_Chile_2025_001.JPG” gives you clear context at a glance. Use this tool to convert after‑thought naming into an organized structure — making long‑term file management easier and sharing cleaner.

Frequently Asked Questions

1. How do I rename many files online for free?

Drag and drop files into the tool, set the naming pattern (base name, numbering, prefix/suffix), preview the new names, then click “Rename All”. Download the renamed files as a ZIP file. No registration or payment required.

2. Are my files uploaded to a server?

No. All work is done in your browser locally. Your files stay on your device, and once downloaded, no copy remains on our servers or cloud.

3. What file types can I rename?

The tool supports image formats (JPG, PNG, WEBP, HEIC/HEIF, SVG), as well as PDF documents. Other file types may not be supported in this version.

4. Can I start numbering at a custom value or add leading zeros?

Yes. You can set the starting number, choose how many digits (padding) and whether the numbering appears before or after the name. E.g., “001‑PhotoName.jpg” or “PhotoName‑001.jpg”.

5. Is there a size or count limit?

You can rename up to a large number of files, but performance may vary depending on your browser and device. For best results, keep total size within a few gigabytes.

6. Does it cost anything or add watermarks?

No. It is completely free to use, and no watermarks or branding are added to your renamed files. It’s a straightforward renaming utility.

7. Can I use this on mobile or tablet devices?

Yes — the interface is mobile‑friendly and works in most modern browsers on tablets and smartphones, so you can rename files even while on the go.

8. What should I look for in a good bulk rename tool?

Look for ease of use (drag/drop support), pattern‑based naming (prefix/suffix/numbering), preview capability, wide file type support, and privacy (local processing). This tool meets all those criteria.

9. How to rename images online ?

ConvertorLab's Free rename utility lets you rename your images and pdfs quickly. Just choose your files and rename with the powerful image rename tool.

Other Useful Image Tools

Why Image & PDF Tools by ConvertorLab?

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All Essential Editing Tools

ConvertorLab offers every tool you need — from resize images, crop pictures online, and add watermarks to images. Merg, Split, Organize or protect Pdfs. Whether you want to extract pages from PDF or make images grayscale, everything is available in one place — free, simple, and in your browser.

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Fast, Private & 100% Online

Every action — whether you merge PDFs online, crop images, or remove a password from PDF — happens directly on your device. No uploads, no waiting, and no tracking. Your files remain private and secure while you enjoy lightning-fast results with professional accuracy.

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Professional Results, Effortlessly

Every tool is built for creators and professionals. From perfectly resized images and cropped photos to well-organized and combined PDF documents, ConvertorLab ensures top quality and precision every time. Get polished results instantly — without any apps or logins.

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Your Data. Your Privacy. Fully Protected.

At Convertor Lab, your files never leave your device. Every image, document, or PDF you process is handled entirely within your browser using secure client-side technology. This means no uploads, no tracking, and no external storage — ever.

We do not collect, view, or save any of your files or personal information. All conversions, compressions, and edits happen locally using trusted browser APIs (HTML5 & JavaScript). Once you close the page, everything is gone — instantly.

This private-by-design approach keeps your creative work and personal data completely safe. Whether you’re converting a single photo or managing a PDF project, you remain in full control at all times.

Convertor Lab — where performance meets privacy.