Batch Image Compress, Resize & Convert

Fast batch image optimizer, converter & resizer

🇺🇦 UA 🇬🇧 EN
We do not store or transfer your photos. All processing is done locally on your device, and output files remain solely with you.
📁

1. File Source

Drag & drop files directly into the window or select a folder on disk

Drag & drop photos here or click to browse

Supported formats: JPG, PNG, WebP, AVIF, TIFF, GIF, SVG

🎛️

2. Processing Settings

Check options to enable: they only apply when checked

WebP ⚡
Original (No resize)
100% (No compression)
⚡
Ready to optimize
Select files or scan a directory to start
📋

Files Queue (0)

Discovered and processed images

File Name Subfolder / Relative Path Original Size Optimized Size Dimensions (px) Reduction Status Action

No files queued yet. Select a folder or drag photos above.
How It Works

How to Compress & Convert Images in Bulk

Process hundreds of photos locally in your browser with zero server latency or data risk

Step 1

Select Photos or Folder

Choose individual image files or entire folder trees. Subdirectory structures are automatically preserved.

Step 2

Configure Settings

Choose your target format (WebP, JPG, PNG, AVIF), compression quality level, and dimension resizing options.

Step 3

Download All as ZIP

Click Start Optimization and instantly download your processed images packaged into a neat ZIP archive.

Key Benefits

Why Choose Batch Image Optimizer

Full compression control with maximum visual fidelity and 100% privacy

🔒

100% Client-Side Privacy

All algorithms run locally on your device via HTML5 Canvas. Your files are never uploaded to any remote server.

⚡

Blazing Performance

Asynchronous parallel execution processes hundreds of photos in seconds without cloud queue bottlenecks.

🚀

Google PageSpeed Boost

Convert to WebP and AVIF to reduce asset weight by up to 80%, improving Core Web Vitals and SEO rankings.

📁

Folder Hierarchy Retention

Perfect for web developers and photographers: keeps your original directory structures inside the final ZIP.

FAQ

Frequently Asked Questions

Click on any question to expand the detailed answer

Is it safe to process sensitive or personal photos?
Yes, 100% safe. Unlike other online converters, Batch Image executes entirely within your browser via HTML5 Canvas. Your images are never uploaded or stored on any external server.
Why does Google recommend WebP over JPG and PNG?
WebP achieves 25–35% higher compression than JPEG while preserving sharp visual fidelity and transparent backgrounds. It directly improves Google PageSpeed and Core Web Vitals.
What quality setting is best for web images?
We recommend 80–85% quality. This offers an optimal balance: images become 3–5x lighter with no noticeable difference to the human eye.
How does transparent PNG to JPG conversion work?
Since JPG lacks transparency support, our tool automatically fills transparent background areas with your chosen solid color (defaults to clean #FFFFFF white).
Are there any file limits or quotas?
Zero limits. You can batch process hundreds of high-resolution images locally without throttling or queue delays.