Jenee

Image Compressor & Optimizer

Compress and optimize image files while maintaining quality. Supports batch processing and downloads.

Drag & drop an image or click to select

Supports JPG, PNG, WebP, and more

※Quality setting does not apply to PNG images to preserve transparency

How to Use

  1. STEP 1
    Select the image files you want to compress (multiple allowed)
  2. STEP 2
    Adjust quality and run compression
  3. STEP 3
    Download the compressed images
  • Image data is processed only in your browser and not sent to any server
  • Supported formats: JPEG/PNG/WebP (GIF etc. not supported)
  • PNG images preserve transparency information (quality setting does not apply)

Tips

1

Image compression is essential for web optimization and faster loading times.

2

PNG format preserves transparency but results in larger file sizes than JPEG.

3

For photos, JPEG format with 80-90% quality provides the best balance of size and quality.

4

Batch processing multiple images saves time when optimizing entire websites or portfolios.

FAQ

  • QUESTION 1

    When would you use this?

    It's widely used for improving website speed, email attachments, saving storage, and optimizing before posting to SNS.

  • QUESTION 2

    How much quality is preserved?

    Default (80%) keeps almost no visible degradation. Adjust as needed.

  • QUESTION 3

    Can I download all at once?

    Yes, you can download all compressed images as a ZIP file.

  • QUESTION 4

    How does quality percent affect image degradation?

    90% or higher: almost no visible loss. 80%: barely noticeable. 70%: sufficient for most uses. 50% or lower: may show visible artifacts or noise depending on the image.

  • QUESTION 5

    What image formats are supported?

    Supports JPEG, PNG, and WebP formats. GIF and BMP are not supported.

  • QUESTION 6

    Is my image data safe?

    All processing is done in your browser and images are never sent externally.

  • QUESTION 7

    How many images can I process at once?

    Depends on browser performance, but typically 10-20 images. Split into batches for larger sets.

  • QUESTION 8

    Will file extensions change?

    PNG images keep their extension, but JPEG/WebP images are saved as .jpg format.

  • QUESTION 9

    What's the typical compression ratio?

    Varies by image and quality settings, but generally 30-70% size reduction is expected.

Feedback (Contact)