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CompressDiet (Bulk Compressor)

Secure Browser-Based Bulk Image Optimizer

Drag & Drop or Click to Upload

Supports JPG, PNG, WEBP, HEIC • Up to 25 files

Compression Mode
Target File Size
Output Format
Resolution Scale

Reduce pixel dimensions for web use. Lower = smaller file & faster loading.

Why use PhotoDiet Bulk Image Compressor?

PhotoDiet is the safest way to compress multiple images online. Unlike other tools that upload your photos to a remote server, PhotoDiet runs entirely in your web browser. This means your personal photos, documents, and creative work never leave your device. Process up to 25 images at once with our bulk compression feature.

Key Features

Common Use Cases

Frequently Asked Questions

Is it safe to compress private photos here?

Yes. Since no file is ever uploaded to a cloud server, your data remains strictly on your computer or phone.

What formats are supported?

You can upload any browser-supported image (JPG, PNG, WebP) and convert/compress them into optimized JPG or WebP formats.

How many files can I process at once?

You can process up to 25 images at once on desktop computers, or 10 images on mobile devices for optimal performance.