Compress JPEG, WebP, and PNG photos locally to minimize file size while preserving high visual quality.
The Image Compressor shrinks image file sizes so your pictures upload faster and consume less storage. You can adjust compression levels and inspect real-time before-and-after size comparisons.
Unlike cloud tools that send your photos to remote servers, MWT Labs runs the entire compression algorithm inside your browser. Your personal snapshots, business graphics, and documents remain 100% private on your device.
Bloggers compress article images before publishing to reduce page weight and improve SEO scores.
Applicants compress scanned ID cards and certificates to meet strict 1MB or 2MB application upload caps.
Professionals shrink photo attachments so messages send instantly without bouncing.
Select or drag your image into the compressor box.
Move the quality slider (recommended: 75%–85%) to balance file size and visual clarity.
Review the saved megabytes and click download to save your optimized file.
Adjustable compression quality slider with live size preview
Supports JPEG, modern WebP, and PNG formats
Clear before-and-after file size and reduction percentage metrics
100% private in-browser compression with zero server uploads
Shrink a 5MB camera photo for an email attachment.
5.2MB original JPEG photo.
Removes unnecessary metadata and optimizes image encoding parameters.
Solution: Increase the quality slider slightly to 85% or 90% to preserve finer photographic details.
MWT Labs tools are built using modern web primitives—including WebAssembly, Web Workers, and native HTML5 Canvas / Cryptography APIs. When you process images, parse PDF documents, format JSON payloads, or calculate financial schedules, execution happens strictly within your local browser memory sandbox.
The compressor optimizes image encoding and adjusts compression quality levels locally in your browser. This reduces file size significantly while keeping visual quality virtually indistinguishable from the original.
At recommended compression settings (75% to 85%), high-frequency details remain sharp while removing imperceptible color data. You can preview the compressed image before downloading.
Yes, 100%. Image compression runs locally inside your browser using client-side canvas APIs. Your photos never leave your computer or smartphone.
You can compress JPEG, WebP, and PNG images. JPEG and WebP offer the highest compression ratios for photos, while PNG is best for illustrations and graphics with transparency.
PNG uses lossless compression designed to preserve exact pixels and transparency. To achieve dramatic size reduction for photos, consider converting the image to WebP or JPEG.
Crop, rotate, and resize images with aspect ratio presets for social media and documents.
Convert between PNG, JPEG, WebP, AVIF, and SVG image formats directly in your browser.
Explore color harmonics, convert HEX/RGB/HSL, and check WCAG contrast ratios.