Image Compressor – Reduce Image Size Without Losing Quality

Shrink image file sizes for faster loading and smaller storage. Ideal for websites, emails, and social media. Quality slider lets you control the trade-off.

100% browser-side • No uploads • No tracking • No server processing

Drag & drop images or click to browse

Supports JPG, PNG, WebP, GIF • Max 5MB per file • Max 20 files

No images uploaded yet

Drag and drop your images here or click to browse. We support JPG, PNG, WebP, and GIF files.

Browser-Only vs Upload-Based Image Compressors

AspectBrowser-only (this tool)Upload-based tools
Where processing happensYour device onlyTheir servers
PrivacyImages never leave your deviceImages sent to and stored on servers
Tracking / accountNoneOften cookies, analytics, or signup
Best forSensitive photos, privacy-conscious usersWhen you don’t mind uploading

Privacy guarantee: This tool is built by EverydayTools. Compression runs 100% in your browser. No account, no tracking, no server uploads. Your images never leave your device.

Tips for Best Results

For Photos

Use 70-80% quality for optimal balance between size and quality.

For Screenshots

PNG format with 90% quality preserves text clarity.

For Web

Convert to WebP format for up to 30% smaller files than JPEG.

What is an Image Compressor?

An image compressor is an essential online tool that reduces image file sizes while maintaining visual quality. Whether you're a blogger optimizing photos for faster page loads, a web designer preparing assets for client websites, a marketer creating social media content, or a business owner reducing storage costs, an image compressor solves these common challenges instantly.

Image compression is crucial for website performance, as large, unoptimized images significantly slow down page loading times, negatively impact user experience, and hurt SEO rankings. Our free online image compressor uses advanced algorithms to reduce file sizes by up to 90% without noticeable quality loss, making it perfect for optimizing images for web use, reducing email attachment sizes, saving cloud storage space, and improving overall digital performance. For best results, combine compression with our image resizer to first resize images to appropriate dimensions, then compress them further.

Unlike desktop software that requires installation and takes up storage space, this browser-based compressor works entirely in your browser—your images never leave your device, ensuring complete privacy and security. With support for all major formats including JPG, PNG, WebP, and GIF, you can compress single images or process multiple files in bulk, all without any signup, watermarks, or hidden fees. If you need to convert between formats, our image converter tool can help you switch formats seamlessly.

When to Use an Image Compressor

Website Performance Optimization

Large images are one of the primary causes of slow website loading times. By compressing images before uploading them to your website, you can dramatically improve page speed, reduce bandwidth costs, and enhance user experience. Google's PageSpeed Insights recommends images be under 200KB for optimal performance. Our compressor helps you achieve this while maintaining visual quality, directly improving your SEO rankings and user engagement metrics.

Reducing Image Size for Emails

Email clients often have size limits for attachments, and large images can cause delivery issues or bounce back. Compressing images before attaching them to emails ensures faster sending, reliable delivery, and better recipient experience. Most email attachments should be under 1-2MB, which is easily achievable by compressing high-resolution photos to more appropriate file sizes while maintaining clarity.

Saving Storage Space

Whether you're managing a photo library, storing images in cloud storage, or preparing files for backup, compressed images take up significantly less space. Reducing file sizes by 50-90% means you can store more images in the same amount of space, reducing storage costs and improving file management efficiency. This is especially valuable for photographers, designers, and businesses managing large image collections.

Preparing Photos for Social Media

Social media platforms compress uploaded images automatically, often reducing quality. By pre-compressing your images to optimal sizes before uploading, you maintain more control over the final quality and ensure faster upload times. Compressed images also load faster for your audience, improving engagement rates and ensuring your content displays properly across all devices and network conditions.

Bulk Image Compression

When working with multiple images—such as product photos for an e-commerce site, blog post images, or client deliverables—compressing them individually would be time-consuming. Our image compressor supports batch processing, allowing you to upload and compress up to 20 images simultaneously. Download all compressed images as a convenient ZIP archive, streamlining your workflow and saving valuable time.

How to Use the Image Compressor

1

Upload Your Images

Click the upload area or drag and drop your images directly into the compressor. You can upload up to 20 images at once, with each file limited to 5MB. Supported formats include JPG, PNG, WebP, and GIF. The tool automatically validates your files and begins processing them immediately upon upload.

2

Choose Compression Strength

Adjust the quality slider (10-100%) to control compression strength. Higher quality settings preserve more detail but create larger files, while lower settings reduce file size more aggressively. You can also set a maximum file size target (0.1-5MB) to ensure your compressed images don't exceed specific size requirements. The tool shows real-time compression statistics so you can see the impact of your settings.

3

Preview Before and After

The compressor displays thumbnails of your images along with original and compressed file sizes, compression ratios, and space saved. This allows you to verify that the compression quality meets your needs before downloading. Each file shows its compression progress and status, making it easy to track the optimization process.

4

Download Compressed Images

Download individual compressed images or use the "Download All as ZIP" feature to get all your optimized images in a single archive. Compressed files are automatically named with a "-compressed" suffix to help you distinguish them from originals. The tool processes everything in your browser, ensuring fast performance and complete privacy.

Real-World Compression Examples

Example 1: Blog Hero Image Reduced from 3MB to 500KB

A blogger has a high-resolution hero image (4000×3000 pixels, 3MB) that's causing slow page loads. By compressing the image with 75% quality settings, the file size reduces to approximately 500KB—an 83% reduction. The compressed image maintains excellent visual quality for web display while dramatically improving page load speed. This results in better user experience, improved SEO rankings, and reduced bandwidth costs.

Use case: Website optimization, faster page loads, improved SEO performance

Example 2: PNG Logo Compression for Faster Load

A company website has a detailed PNG logo with transparency (2000×600 pixels, 1.2MB) that loads slowly on mobile devices. By compressing the PNG with 85% quality while preserving transparency, the file size reduces to approximately 180KB—an 85% reduction. The logo maintains its crisp appearance and transparency, but now loads instantly on all devices, improving overall site performance and user experience.

Use case: Brand assets optimization, mobile performance, transparency preservation

Example 3: WebP Compression for Mobile Web

A mobile app developer needs to optimize product images for a responsive web store. Original JPEG images (3000×2000 pixels, 2.5MB each) are converted to WebP format and compressed to 70% quality, resulting in file sizes of approximately 350KB each—an 86% reduction. The WebP format provides superior compression compared to JPEG while maintaining excellent quality, resulting in faster mobile page loads and improved conversion rates.

Use case: E-commerce optimization, mobile web performance, modern format adoption

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Frequently Asked Questions

Does compression reduce quality?

Modern compression algorithms are designed to reduce file size while maintaining visual quality. With our image compressor, you can achieve 50-90% file size reduction with minimal to no noticeable quality loss, especially when using quality settings above 70%. The tool uses advanced compression techniques that prioritize visual quality, making it ideal for web use, social media, and professional applications where quality matters.

Is it free to use?

Yes, our image compressor is completely free to use with no hidden fees, subscriptions, or premium tiers. There are no watermarks added to your compressed images, and you can process as many images as you need without limitations. We believe in providing accessible tools for everyone, whether you're a professional designer, a small business owner, or someone making a quick compression for personal use.

Can I compress multiple images?

Absolutely! Our image compressor supports batch processing, allowing you to upload and compress up to 20 images simultaneously. Each image is processed individually with progress tracking, and you can download all compressed images individually or as a convenient ZIP archive. This feature is perfect for photographers, web developers, and anyone working with multiple images who needs to optimize their workflow.

What formats are supported?

Our image compressor supports all major image formats including JPEG (JPG), PNG, WebP, and GIF. These formats cover the vast majority of image use cases, from photographs and graphics to logos and web assets. The tool maintains the original format of your images during compression, ensuring compatibility with your existing workflows and requirements.

Does it work on mobile?

Yes, our image compressor is fully responsive and works seamlessly on mobile devices, tablets, and desktop computers. The interface adapts to your screen size, and you can upload images directly from your mobile device's photo gallery. Touch-friendly controls make it easy to adjust compression settings and download optimized images on the go, making it perfect for quick social media optimizations or email attachments.

Does compression affect transparency?

PNG and WebP formats support transparency, and our compressor preserves transparency channels during compression. When compressing PNG images with transparency, the tool maintains the alpha channel, ensuring transparent backgrounds remain intact. This makes it perfect for compressing logos, icons, and graphics that require transparency for proper display on websites and in design projects.

Do my images get uploaded to a server?

No. This image compressor runs 100% in your browser. Your images never leave your device—there is no upload, no server processing, and no tracking. That makes it safer than upload-based tools for private or sensitive photos.

Limitations & Important Considerations

While our image compressor handles most compression tasks seamlessly, there are a few limitations to be aware of:

  • Extremely Large Files: Individual files are limited to 5MB for upload to ensure optimal browser performance. For very large files, consider using desktop software or compressing in stages. Files larger than 5MB may take longer to process and could impact browser performance.
  • Animated GIF Handling: When compressing animated GIFs, the tool processes the first frame only, converting animated GIFs to static images. For animated content, specialized tools may be more appropriate, or consider converting to video formats for better compression of animated content.
  • Minimal Compression on Already Small Images: Images that are already well-optimized (under 100KB) may show minimal compression gains, as they're already efficiently compressed. The tool works best with larger, unoptimized images where significant file size reduction is possible.
  • Browser Performance on Low-Power Devices: Processing multiple large images simultaneously may take longer on low-power devices or older browsers. For best performance, process images in smaller batches or use a modern, updated browser with sufficient memory and processing power.

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