Tools Viewer

JPG Compressor – Compress JPG Images Online for Free

What Is JPG Compressor?

JPG Compressor is a free, browser-based tool for compressing JPEG images in batches. Designed for .jpg and .jpeg files, it helps reduce image file sizes while letting you control the compression quality.

Use this JPG compressor online to shrink photos before emailing, uploading, or publishing them. The tool uses lossy JPEG compression, so lower quality settings generally produce smaller files but may reduce image detail.

Compression runs directly in your browser, so your images are not uploaded to ToolsViewer servers.

How to Use JPG Compressor

Step 1: Add JPG Files
Select one or more JPEG images. The tool accepts image/jpeg, .jpg, and .jpeg files.

Step 2: Set the Quality
Adjust the quality slider. The default is around 82%, while lower values generally produce smaller files with more visible quality loss.

Step 3: Compress
Run the compression process and review the result for each image.

Step 4: Compare and Download
Compare the compressed image with the original, then download the result. Each file uses a -compressed suffix and the image/jpeg format.

JPG Compressor Features

  • Online JPEG compression: Recompress JPG images directly in your browser.
  • Batch processing: Compress multiple JPEG files in one session.
  • Adjustable quality: Control compression using a slider with a default of around 82%.
  • JPEG output: Download compressed images in image/jpeg format.
  • Before-and-after comparison: Review visual quality after compression.
  • Easy downloads: Save each image with a -compressed filename suffix.
  • Private processing: Images are processed in your browser without uploading them to ToolsViewer servers.

Common Use Cases

Reduce Photo Size
Shrink photos before emailing them or uploading them to forms with file size limits.

Prepare Images for the Web
Optimize JPEG images for websites where smaller files can help reduce page weight and improve loading performance.

Batch Compress Multiple Photos
Process several JPG or JPEG images together instead of compressing each file individually.

Find the Right Quality
Adjust the compression quality, run the process again, and compare the result until you find a suitable balance between file size and appearance.

Supported Input and Output

JPG Compressor supports the following formats:

  • Input: JPEG images (image/jpeg, .jpg, .jpeg), one or multiple files
  • Output: Compressed JPEG images
  • Compression: Lossy JPEG compression
  • Download: Individual files with a -compressed suffix

What It Does and Does Not Do

JPG Compressor recompresses JPEG images in your browser using lossy compression. It supports batch processing and lets you compare compressed images with their originals.

It does not provide lossless JPEG optimization, and it does not edit EXIF metadata. Because compression may reduce image detail, review each result before using it for professional photography, product images, or other quality-sensitive work.

Turning HTML into an image first? Try HTML to JPG or HTML to PNG. Compressing graphics or screenshots? Use PNG Compressor.

FAQ

Is JPG Compressor free?
Yes. Tools Viewer tools are free to use in the browser with no account required.
Do I need to create an account to use JPG Compressor?
No. Open the tool and start working — signup is not required.
Is my content uploaded to your servers?
No. JPG Compressor runs in your browser. Your images are not uploaded to Tools Viewer servers for this compression step. They stay on your device unless you download the results yourself.
Can I adjust the quality?
Yes. Use the quality slider and run the compression again after changing it. Lower quality gives smaller files.
Is the compression lossless?
No. The tool uses lossy JPEG recompression, so quality is traded for smaller size.
Does it accept PNG files?
No. JPG Compressor accepts JPEG files. Use PNG Compressor for PNG images.
How do I compress a JPG online?
Select your JPEG files, set the quality, run the compression, compare the result, and download the compressed file.