Let Compress

Image Compare

Compare two images side by side. Perfect for before/after comparisons.

Before Image

The original image

Click to upload image

After Image

The edited or processed image

Click to upload image

High Quality

Keep your files clear and usable while reducing size or converting formats.

100% Secure

All processing happens in your browser. Your files never leave your device.

Super Fast

Process multiple files in seconds with our optimized browser-based tools.

Related Tools

Crop Image

Crop images to custom size or aspect ratio. Perfect for social media and websites.

Remove Background

Remove image background by color. Create transparent PNG images instantly.

Resize Image

Resize images by pixels, percentage or ratio. Maintain quality while changing size.

Rotate & Flip Image

Rotate and flip images online. 90°, 180°, 270° rotation and horizontal/vertical flip.

Image Format Converter

Convert images between any format. Support PNG, JPG, WebP, AVIF, GIF and more.

Add Watermark

Add text or image watermark to protect your image copyright. Full control over watermark style and position.

About Image Comparison

Our image comparison tool lets you compare two images side by side with an interactive slider. Perfect for viewing before/after edits, comparing compression quality, or analyzing differences between similar images. The slider allows you to reveal as much or as little of each image as you want for detailed comparison.

How to Use This Tool
  1. 1
    Select Your Files

    Click the upload button or drag and drop your files into the upload area. You can select multiple files at once.

  2. 2
    Start Processing

    Choose the settings you need, then start the tool. Processing happens in your browser and results appear in real time.

  3. 3
    Download the Results

    Download your processed files individually or all at once when the task is complete. Your original files remain unchanged.

Frequently Asked Questions

Will processing reduce quality?

It depends on the tool and the settings you choose. Many tools balance smaller file sizes with usable quality, and some actions like formatting or archive creation do not reduce quality at all.

Are my files safe and private?

Absolutely. All processing happens locally in your browser. Your files are never uploaded to our servers or transmitted over the internet, which helps keep your documents, media, and other files private.

What's the maximum file size?

Most tools accept files up to 50MB each. For larger files, try splitting them into smaller batches or using a different format.

How much can I reduce file size?

Results vary depending on the file type, content, and tool settings. Many files can often be reduced by 30-80%, while some tools focus on compatibility, cleanup, or conversion instead of maximum size reduction.

Why Choose Let Compress?
  • No file upload required - 100% client-side processing
  • Free to use with no registration needed
  • Batch compress multiple files at once
  • Optimized compression algorithms for best results
  • Works on all modern browsers and devices
  • No file size limits or compression quotas

Learn More About Image Compression

Explore these authoritative resources to deepen your understanding of image compression and optimization.

MDN Web Docs: Image Optimization

Comprehensive guide on image optimization for web performance by Mozilla.

Google Web Fundamentals: Image Optimization

Best practices for image optimization from Google's web performance team.

W3C WebP Specification

Official W3C specification for the WebP image format.