Does compressing reduce visual quality?

Target Size mode maximizes visual sharpness within your target budget. If a file is already smaller than the target, no quality loss occurs.

What happens if a target size is too small?

If an image cannot physically reach an extreme target size without severe corruption, the tool delivers the smallest achievable valid image and notifies you of the result.

Back to All Image Tools

Image Compressor

Compress images to target file sizes (e.g. 50 KB, 100 KB, 1 MB) or custom quality percentages with real-time optimization.

Pro Tip: All compression, converting, and resizing runs 100% in your browser for instant privacy.

How It Works

High-performance in-browser image optimization. Compress JPG, PNG, and WebP images to specific target file sizes (20 KB, 50 KB, 100 KB, 500 KB, 1 MB) or fine-tune quality with live before/after previews.

Select images

Upload one or multiple JPG, PNG, or WebP images.

Choose compression mode

Set your target file size (e.g., 50 KB, 100 KB) or adjust the quality slider.

Save optimized files

Download the compressed images individually or as an organized ZIP.

Key Features & Capabilities

Dual compression modes: Target File Size (KB/MB) and Target Quality (%)

Iterative binary-search optimization to meet exact target sizes

Real-time before and after size comparison with honest metrics

Batch compression with individual or all-in-one ZIP downloads

Aspect-ratio-preserving smart dimension scaling without upscaling

100% private in-browser optimization with zero server uploads

Frequently Asked Questions

Our client-side optimizer runs an iterative binary-search algorithm on encoding parameters and image dimensions to produce a high-fidelity image at or below your requested target size (e.g. 50 KB or 1 MB).

Related Utilities

Image Converter

Convert images between JPG, PNG, WEBP, BMP, GIF, and TIFF formats with transparency preservation.

Image Tools

Image Resizer

Resize images to exact pixel dimensions, percentage scales, or social media & web presets with aspect ratio lock.

Image Tools

Image Cropper

Crop images visually with freeform bounding boxes, standard aspect ratios (1:1, 4:3, 16:9, 3:2), and rotation.

Image Tools

PDF Compressor

Compress PDF documents to a specific target file size (e.g. 500 KB, 1 MB) or choose balanced structural presets.

PDF Tools

Your files are processed locally in your browser. No data is uploaded to any server.