Batch Image Compressor
Lossless or lossy image optimization to shrink JPEG, PNG, and WebP file sizes offline.
100% Offline (Processes in browser thread)
Drag & drop files or folder structures here
or choose from the controls below:
Files Queue (0)
| File Name | Subfolder Path | Original | Compressed | Saved % | Status | Actions |
|---|---|---|---|---|---|---|
| No files selected in queue. | ||||||
User Guide: Client-Side Batch Image Compression
Offline Privacy Core
Unlike standard optimization software that transmits your private pictures to server clusters, our tool processes code execution 100% inside your local browser sandbox. Images are resized and compressed locally on your machine, protecting your media data.
Directory Tree Retention
Dragging folders parses their paths recursively. When downloading the final ZIP, the compression tool reconstructs the exact directory structure and preserves unchanged filenames.
Quality Presets and Modes
- Auto: Ideal configuration balancing clarity and lightweight file footprint (75%).
- Best for Web: Higher optimization compression (60%) for loading speeds.
- Best for Print: Preserves original pixels at high definition quality (95%).
- WASM and HTML5 Canvas: Renders pixel values locally using high-fidelity rendering engines.