How are PNG files compressed?

To provide the best possible file size reduction, this tool converts PNG files to the highly efficient JPG format during compression. This allows the quality slider to have a significant effect, but it means any transparency in the original PNG will be lost.

Image Compressor | Free Tool to Reduce Multiple Image Sizes

Q: What quality setting should I use?

For web use, a quality setting between 70 and 85 usually provides the best balance between small file size and high visual quality. For images where quality is critical, you might choose 90 or higher. For simple thumbnails, you can often go as low as 50-60.

An Image Compressor to reduce the file size of multiple JPG, PNG, and WEBP images at once. Our free tool lets you compress photos with a quality slider and presets, all securely in your browser.

Click to upload or drag and drop images

(JPG, PNG, WEBP supported | Max 10 images, 5MB each)

Compression Quality

Note: Quality below 50 may be visibly poor.

Compressed Images

About the Image Compressor

The Image Compressor from TechnoCodex is a powerful, free, and private tool designed to reduce the file size of your images quickly and easily. Large image files can slow down your website, exceed email attachment limits, and take up unnecessary storage space. Our tool solves this problem by intelligently compressing your images, supporting batch processing of multiple files at once, and giving you full control over the final quality. Best of all, it’s 100% secure—all compression happens in your browser, and your images are never uploaded to our servers.

Our photo compressor is built for both ease of use and professional control. After uploading your images, you’ll see a clean list of your files. You can then use the interactive quality slider—complete with colored zones and text indicators—to find the perfect balance between a small file size and high visual quality. For even faster results, use our one-click presets for “Best Quality,” “Recommended,” or “Smallest Size.” The tool processes all your images instantly, showing you the new file size and the exact percentage of reduction for each.

How to Use the Image Compressor

Upload Your Images: Click the upload area to select multiple files, or simply drag and drop your images onto the designated space.
Adjust the Quality: Use the interactive slider or click a preset button to set your desired compression level. The quality indicator will guide you.
Click “Compress Images”: The tool will process all your images instantly. A new list of the compressed images will appear below, showing the dramatic file size reduction for each.
Download: You can download each compressed image individually, or click the “Download All (.zip)” button to get them all in a single, convenient file.

Frequently Asked Questions (FAQs)

What is an image compressor?
An image compressor is a tool that reduces the file size of an image (in KB or MB) without significantly changing its pixel dimensions. This makes the image load faster on websites and easier to send via email.

Are my images safe and private?
Yes, absolutely. This tool is 100% client-side, which means your images are processed directly in your web browser. They are never uploaded to our servers, ensuring your files remain completely private and secure.

What quality setting should I use?
Our presets are a great guide. ‘Recommended’ (75) offers an excellent balance of quality and file size for web use. ‘Best Quality’ (90) is for when visual detail is critical, and ‘Smallest Size’ (50) is for when file size is the top priority.