Bulk Image Compressor | NexUtils
Upload Images to Compress
Drag & drop images here or click to browse
About This Tool
Large images are the #1 enemy of website performance. Our Bulk Image Compressor uses advanced smart lossy compression algorithms to significantly reduce file sizes—often by 70-90%—while maintaining visual quality that is virtually indistinguishable from the original. Unlike server-side compressors, this tool runs entirely in your browser. This means your private photos never leave your device, and there are no upload limits or wait times. Whether you are a web developer trying to improve Core Web Vitals, a photographer saving disk space, or a student emailing documents, this tool makes your files leaner and faster. This tool eliminates the need for manual calculations and complex formulas, providing instant, accurate results that you can rely on. It works perfectly on all devices - desktop, tablet, and mobile - ensuring you have access to essential utilities wherever you are. The clean, intuitive interface means you can get your answers quickly without navigating through complicated menus or settings. Whether you're at home, in the office, or on the go, this tool is always ready to help. It's designed to save you time and reduce errors in everyday calculations that impact your daily life and decision-making.
How to Use This Tool
Upload Images
Drag and drop your files into the zone. Supports multiple file selection.
Adjust Settings
Use the 'Quality' slider (default 80%) to control compression strength. Lower quality = smaller size.
Review & Download
Check the 'Total Savings' stat. Click 'Download All' to save the optimized images to your device.
Key Features
- Smart Compression: Reduces file size by selectively decreasing the number of colors in the image, so fewer bytes are required to store data.
- Visual Quality Control: Adjustable quality slider lets you find the perfect balance between size and clarity.
- Bulk Processing: Drag and drop 50+ images at once to save hours of manual work.
- Privacy First: 100% Client-side processing (WebAssembly). No server uploads.
- Format Support: Works with modern WebP as well as standard JPG and PNG formats.
Common Use Cases
Why This Tool Matters
Page speed is a crucial ranking factor for Google (seo) and affects user retention. 53% of mobile visits are abandoned if a page takes longer than 3 seconds to load. Uncompressed images are often 2-5MB, whereas optimizing them can bring them under 200KB—a 10x speed improvement.
Frequently Asked Questions
Does compression ruin quality?
Not if done correctly. 'Lossy' compression removes data that humans can't easily see. At 80% quality, the visual difference is negligible, but the file size drop is massive.
Is it secure?
Yes. Unlike other sites that upload your photos to a cloud server to process them, we process everything inside your browser using JavaScript. Your photos never touch our servers.
What is specific regarding WebP?
WebP is a modern format that provides superior compression for images on the web. Our tool supports compressing WebP directly.
About This Tool
Large images are the #1 enemy of website performance. Our Bulk Image Compressor uses advanced smart lossy compression algorithms to significantly reduce file sizes—often by 70-90%—while maintaining visual quality that is virtually indistinguishable from the original. Unlike server-side compressors, this tool runs entirely in your browser. This means your private photos never leave your device, and there are no upload limits or wait times. Whether you are a web developer trying to improve Core Web Vitals, a photographer saving disk space, or a student emailing documents, this tool makes your files leaner and faster. This tool eliminates the need for manual calculations and complex formulas, providing instant, accurate results that you can rely on. It works perfectly on all devices - desktop, tablet, and mobile - ensuring you have access to essential utilities wherever you are. The clean, intuitive interface means you can get your answers quickly without navigating through complicated menus or settings. Whether you're at home, in the office, or on the go, this tool is always ready to help. It's designed to save you time and reduce errors in everyday calculations that impact your daily life and decision-making.
How to Use This Tool
Upload Images
Drag and drop your files into the zone. Supports multiple file selection.
Adjust Settings
Use the 'Quality' slider (default 80%) to control compression strength. Lower quality = smaller size.
Review & Download
Check the 'Total Savings' stat. Click 'Download All' to save the optimized images to your device.
Key Features
- Smart Compression: Reduces file size by selectively decreasing the number of colors in the image, so fewer bytes are required to store data.
- Visual Quality Control: Adjustable quality slider lets you find the perfect balance between size and clarity.
- Bulk Processing: Drag and drop 50+ images at once to save hours of manual work.
- Privacy First: 100% Client-side processing (WebAssembly). No server uploads.
- Format Support: Works with modern WebP as well as standard JPG and PNG formats.
Common Use Cases
Why This Tool Matters
Page speed is a crucial ranking factor for Google (seo) and affects user retention. 53% of mobile visits are abandoned if a page takes longer than 3 seconds to load. Uncompressed images are often 2-5MB, whereas optimizing them can bring them under 200KB—a 10x speed improvement.
Frequently Asked Questions
Does compression ruin quality?
Not if done correctly. 'Lossy' compression removes data that humans can't easily see. At 80% quality, the visual difference is negligible, but the file size drop is massive.
Is it secure?
Yes. Unlike other sites that upload your photos to a cloud server to process them, we process everything inside your browser using JavaScript. Your photos never touch our servers.
What is specific regarding WebP?
WebP is a modern format that provides superior compression for images on the web. Our tool supports compressing WebP directly.