Be Converter

JPG to JPEG Converter

Rename .jpg files to .jpeg extension. JPG and JPEG are the same image format — this tool simply changes the file extension for software compatibility.

JPG and JPEG are the same format

JPG and JPEG are identical image formats. The only difference is the file extension. Early Windows systems limited extensions to 3 characters, creating ".jpg". Modern systems support ".jpeg". This tool renames the extension without modifying image data.

Select JPG Files

Drop your .jpg images here to rename them to .jpeg

or drag files here

Maximum 15MB per file • Up to 15 files
ImageTiny 應用圖示

ImageTiny

本地離線

想把這類圖片轉換流程搬到 iPhone？

ImageTiny 支援本地離線壓縮、裁剪、縮放、格式轉換和中繼資料清理，適合分享前瘦身、釋放儲存空間，或批次處理常見照片格式。

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適合 HEIC、JPG、PNG、WebP 等常見照片處理場景。

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How to Convert JPG to JPEG

  1. 1

    Upload JPG Files

    Click the upload button or drag & drop your .jpg files

  2. 2

    Click Convert

    Click "Convert to JPEG" to rename the file extensions

  3. 3

    Download Files

    Download individual files or use "Download All" for batch download

  4. 4

    Use Your Files

    Your .jpeg files are ready to use in any application

JPG to JPEG Converter Features

Same Format, Different Extension

JPG and JPEG are identical formats. This tool renames the extension without any quality loss or re-encoding.

Instant Processing

No conversion needed — files are renamed instantly since no image data changes.

Batch Rename

Rename up to 15 .jpg files to .jpeg at once for efficient bulk processing.

Privacy & Security

All processing happens locally in your browser. Images never leave your device.

Software Compatibility

Some software requires the .jpeg extension. This tool ensures your files work everywhere.

Free & Unlimited

No registration, no watermarks, unlimited conversions. Completely free.

Frequently Asked Questions

What is the difference between JPG and JPEG?
There is no difference in image quality or format. JPG and JPEG are the same JPEG image format. The .jpg extension exists because early Windows versions (DOS) limited file extensions to 3 characters. Modern systems support both .jpg and .jpeg extensions interchangeably.
Does converting JPG to JPEG lose quality?
No. This tool simply renames the file extension from .jpg to .jpeg without modifying any image data. The file content remains 100% identical — no re-encoding or compression occurs.
Why would I need to rename JPG to JPEG?
Some software, web platforms, or upload forms specifically require the .jpeg extension. Certain programming libraries or APIs may also expect .jpeg. This tool provides a quick way to batch rename files for compatibility.
Can I convert JPEG back to JPG?
Yes, you can simply rename the extension back. Since the file content is identical, switching between .jpg and .jpeg has no effect on the image itself.
Are my files safe?
Absolutely. All processing happens in your browser. Your images are never uploaded to any server. Once you close the page, all data is cleared.