Image Compressor

Reduce image file sizes by optimizing JPEG/PNG quality client-side.

Photo Compressor

Drag & drop an image here

Supports PNG, JPG, JPEG, WebP

Compression Settings
Image Preview

Free Image Compressor Online — RezanToolbox

Looking for a free Image Compressor online? RezanToolbox provides a fast, privacy-first image compressor also known as Photo Compressor, JPEG Compressor. Reduce image file sizes by optimizing JPEG/PNG quality client-side. Unlike cloud-based alternatives, everything runs 100% in your browser — your files and data are never uploaded to any server. Trusted by photographers, designers, marketers, and anyone who needs to edit images without Photoshop, our tool delivers instant results with zero registration, zero downloads, and zero cost.

Also searched as: Photo Compressor · JPEG Compressor

How to Use Image Compressor — Step by Step

  1. Go to RezanToolbox Image Compressor — no account or download needed.
  2. Upload your image by dragging it onto the page or clicking Browse File.
  3. Adjust settings like size, quality, crop area, or output format using the controls.
  4. Preview your result in real time, then click Download to save your processed image.

Image Compressor — Frequently Asked Questions

Yes, Image Compressor is 100% free on RezanToolbox. No hidden fees, no premium tiers, no credit card, and no registration required. Use it as many times as you want.

Absolutely. RezanToolbox runs all processing client-side in your browser. Your files, text, and code are never uploaded to any server. Your privacy is fully protected.

No download required. Image Compressor works directly in your web browser on Chrome, Firefox, Safari, and Edge. Just open the page and start using it instantly.

Yes. RezanToolbox is fully responsive and works on iPhone, Android, iPad, and all mobile devices with a modern browser.

Most RezanToolbox image tools support PNG, JPG, JPEG, and WebP formats. Supported formats are shown on the upload area of each tool page.

Once the page loads, most RezanToolbox tools work offline because all computation happens locally in your browser using JavaScript.