Deshmaj Image Compressor

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🚀 Deshmaj Image Compressor

Compress multiple images instantly with advanced settings

Quality:

80%

Format:
JPEGPNGWebP

Max Width:

Max Height:

📁

Drag & drop images here or browse files

Supports: JPG, PNG, WebP, GIF (Max 50MB each)

Compress Images
⏳

Clear All

${(file.size / 1024).toFixed(1)} KB

Original: –
Compressed: –

Download
`;
return div;
}

async compressAll() {
this.compressBtn.disabled = true;
const btnText = this.compressBtn.querySelector(‘.btn-text’);
const btnLoader = this.compressBtn.querySelector(‘.btn-loader’);
btnText.style.display = ‘none’;
btnLoader.style.display = ‘inline’;

for (let i = 0; i < this.files.length; i++) {
await this.compressImage(i);
}

btnText.style.display = ‘inline’;
btnLoader.style.display = ‘none’;
this.compressBtn.disabled = false;
}

async compressImage(index) {
const file = this.files[index];
const previewItem = this.resultsArea.children[index];
const canvas = document.createElement(‘canvas’);
const ctx = canvas.getContext(‘2d’);
const img = new Image();

return new Promise((resolve) => {
img.onload = () => {
// Resize if needed
const maxW = parseInt(this.maxWidth.value);
const maxH = parseInt(this.maxHeight.value);
let { width, height } = img;

if (width > maxW || height > maxH) {
const ratio = Math.min(maxW / width, maxH / height);
width *= ratio;
height *= ratio;
}

canvas.width = width;
canvas.height = height;
ctx.drawImage(img, 0, 0, width, height);

// Compress
const quality = parseInt(this.qualitySlider.value) / 100;
const format = this.formatSelect.value;
const ext = format.split(‘/’)[1];

canvas.toBlob((blob) => {
const compressedSize = blob.size;
const originalSize = file.size;
const percent = ((1 – compressedSize / originalSize) * 100).toFixed(1);

// Update UI
const sizeComp = previewItem.querySelector(‘.size-comparison’);
const statsBar = previewItem.querySelector(‘.stats-bar’);
const downloadBtn = previewItem.querySelector(‘.download-btn’);

sizeComp.style.display = ‘flex’;
sizeComp.innerHTML = `
Original: ${(originalSize / 1024).toFixed(1)} KB
Compressed: ${(compressedSize / 1024).toFixed(1)} KB (${percent}% ↓)
`;
statsBar.style.setProperty(‘–compressed-percent’, `${Math.min(percent, 100)}%`);
downloadBtn.style.display = ‘block’;
downloadBtn.onclick = () => this.downloadFile(blob, file.name.replace(/.[^/.]+$/, `_${ext}`));

resolve();
}, format, quality);
};
img.src = URL.createObjectURL(file);
});
}

downloadFile(blob, filename) {
const url = URL.createObjectURL(blob);
const a = document.createElement(‘a’);
a.href = url;
a.download = filename;
document.body.appendChild(a);
a.click();
document.body.removeChild(a);
URL.revokeObjectURL(url);
}

clearAll() {
this.files = [];
this.resultsArea.innerHTML = ”;
this.fileInput.value = ”;
this.compressBtn.disabled = true;
}
}

// Initialize Pro Compressor
new ProImageCompressor();

Complete User Guide

Bulk image compression reduces file sizes across multiple images simultaneously, saving storage and speeding up websites. This article details methods, tools, and best practices for efficient results.

Why Compress Images in Bulk?

Large images slow down websites and increase hosting costs. Compressing multiple files at once achieves 60-90% size reduction while keeping visual quality intact, ideal for web developers, photographers, and marketers handling portfolios or product catalogs.[Compressor]​

Method 1: Online Tools (Easiest)

Online compressors process batches without software installation.

• Upload images: Drag-and-drop or select multiple JPG, PNG, WebP files (most support up to 50MB each).
• Adjust settings: Set quality (70-85% for web), resize dimensions (e.g., max 1920×1080), and format (prefer WebP for best compression).
• Compress: Click process; download individually or as ZIP.

Popular free tools include Compressor.io (lossy/lossless), TinyPNG (PNG specialist), and ImageCompressor.com (80% default quality).imagecompressor+1

Pros: No install, instant previews. Cons: Upload limits, privacy risks.

Method 2: Desktop Software (Professional)

Install apps for unlimited local processing.

Software	Platform	Batch Size	Formats	Compression	Price ​
Caesium	Win/Mac/Linux	Unlimited	JPG, PNG, WebP, TIFF	Lossy/Lossless	Free
ImageOptim	Mac	Unlimited	PNG, JPG	Lossless	Free
Compresto	Mac	Hundreds	PNG, JPG, GIF, SVG	Both	Paid
RIOT	Windows	Limited	PNG, JPG, GIF	Both	Free

Steps for Caesium:

1. Add folder of images.
2. Set quality slider and preview before/after.
3. Output to new folder.[Compressor]​

Pros: Privacy, hardware speed. Cons: Platform-specific.

Method 3: Command-Line (Advanced)

Use ImageMagick for scripts on any OS.

1. Install: brew install imagemagick (Mac) or apt install imagemagick (Linux).
2. Run: mogrify -quality 85 -resize 1920x1080> *.jpg (processes all JPGs in folder).
3. Backup originals first.

For bulk: Script loops through directories, achieving 80% reduction.[Compress]​

Pros: Automation, free. Cons: Learning curve.

Best Practices

• Target 100-200KB per web image.
• Use 80% JPEG quality; lossless for PNG logos.
• Convert to WebP/AVIF for 30% extra savings.
• Test on real devices—avoid over-compression artifacts.
• Automate with plugins like ShortPixel for WordPress.

Comparison: Online vs Desktop

Aspect	Online Tools	Desktop Software
Speed	Fast for small batches	Faster for 100+ files
Privacy	Files uploaded	Local only
Cost	Free tiers	Mostly free
Features	Basic resize/quality	Advanced previews

Choose based on volume: online for quick tasks, desktop for daily workflows.