1
Select JPEG Files
Click the upload area or drag and drop your .jpeg files. Select one or multiple images at once.
Click to Select JPEG/JPG Images
Or drag and drop files here
⚙️ Conversion Settings
✅ Conversion complete!
How to Convert JPEG to JPG
2
Choose Output
Select .JPG or .JPEG as output format. Adjust quality if needed (default 95%).
3
Download
Click Convert and download your files instantly. Everything happens in your browser.
JPEG vs JPG: What's the Difference?
JPEG and JPG are technically the same image format. Both use the Joint Photographic Experts Group (JPEG) compression algorithm to store photographic images. The only difference is the file extension: .jpeg uses 4 characters while .jpg uses 3 characters.
The .jpg extension became the standard because early versions of Windows (MS-DOS and Windows 3.1) only supported 3-character file extensions. Mac and Linux systems always supported .jpeg, which is why both extensions exist today. Modern operating systems support both equally.
Despite being identical formats, you may need to convert between them because some websites, government portals, job application systems, and software only accept one specific extension. OneWeeb solves this instantly — just select your files and convert in your browser without uploading anything.
JPEG vs JPG Quick Comparison
| Feature | .JPEG | .JPG |
|---|---|---|
| Compression | Lossy (JFIF/Exif) | Lossy (JFIF/Exif) |
| Quality | Identical | Identical |
| File extension length | 4 characters | 3 characters |
| Windows compatibility | ✅ All modern versions | ✅ All versions (including legacy) |
| Mac/Linux support | ✅ Full | ✅ Full |
| Web browser support | ✅ All browsers | ✅ All browsers |
| Common usage | Less common | More common (industry standard) |
| Government forms | ⚠️ Sometimes rejected | ✅ Usually accepted |
Why Use OneWeeb JPEG to JPG Converter?
No Upload Required
Your files are processed locally in your browser. Nothing is sent to any server.
Instant Conversion
No waiting for upload/download. Conversion happens in milliseconds on your device.
Batch Convert
Convert multiple JPEG files to JPG at once. Download individually or as ZIP.
Zero Quality Loss
At 100% quality, there is absolutely no difference between input and output.
Frequently Asked Questions
What is the difference between JPEG and JPG?▼
There is no quality or technical difference. Both use the same JPEG compression. The only difference is the file extension length: .jpeg (4 letters) vs .jpg (3 letters). The .jpg extension became popular because older Windows systems only supported 3-character extensions.
Does converting JPEG to JPG reduce quality?▼
No. At 100% quality setting, there is zero quality loss — the image data is preserved exactly. Even at the default 95% setting, the difference is imperceptible to the human eye while keeping file sizes reasonable.
Why do some websites only accept .jpg files?▼
Some websites, government portals, and application forms have strict file extension validation that only accepts .jpg. This is a common issue with visa applications, job portals, and university admission systems. Converting your .jpeg to .jpg with OneWeeb solves this instantly.
Does this tool upload my files?▼
No. OneWeeb processes all files locally in your browser using JavaScript and Canvas API. Your images never leave your device. You can verify this by disconnecting from the internet after the page loads — the conversion still works.
Can I convert multiple files at once?▼
Yes. Select multiple JPEG files and convert them all to JPG with a single click. You can download each file individually or use the "Download All as ZIP" button for convenience.
Can I convert JPG to JPEG too?▼
Yes. This tool works both ways. Simply change the output format dropdown to .JPEG and your JPG files will be converted to .jpeg extension.