Optimizer

Image Compressor

Reduce image file size drastically without changing the format.

Drag & Drop Your Images Here

Supports .jpg, .jpeg, .png, .webp, .gif files up to 50MB

Browse From Device
Files in Queue (0)

Files never leave your device. All processing happens locally in your browser.

Supported Formats: All common image formats
Maximum File Size: 50 MB
0
Files Ever Uploaded
WebP
Modern Compression
100%
Client-Side Privacy
13 Tools
Fast Format Converters

Savings vary by image and quality setting — lossy compression and modern formats like WebP shrink photos dramatically.

Optimizer

Why Compress Images?

Modern cameras and screenshots produce files far larger than necessary — a phone photo can weigh 5MB while looking identical at 500KB. Compression re-encodes images at a smarter quality setting, discarding imperceptible detail. The format stays the same (JPG stays JPG); only the byte count shrinks. For websites, this directly improves Core Web Vitals and search rankings.

  • ✓
    Same format, smaller file: JPG stays JPG, PNG stays PNG — only the weight changes
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    Quality slider: dial the size-vs-fidelity trade-off to your exact needs
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    Huge PNG savings: bloated screenshots and graphics often shrink 50–80%
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    Web performance: lighter images mean faster LCP scores and happier visitors
Your filestays on deviceConvertedin your browserDownloadinstantly

How it works

Each image is decoded in memory, drawn to an HTML5 canvas, then re-encoded at your chosen quality level — JPGs and WebPs via lossy quantization, PNGs via optimized lossless encoding. Re-encoding also drops embedded EXIF metadata — camera settings, timestamps, and GPS tags — from photos. You see the size savings instantly, all locally.

Technical Comparison

Before vs After Compression

What changes — and what doesn't — when you compress an image.

Feature Original Compressed (85% quality)
File sizeBaseline (often bloated)Typically 40–70% smaller
Visual qualityMaximumVisually identical for most images
FormatJPG / PNG / WebPUnchanged
DimensionsUnchangedUnchanged
Load timeSlow on mobile networksFast — better Core Web Vitals
Tutorial

How to Compress Images in 3 Steps

1

Add Your Images

Drag and drop JPG, PNG, WebP, or GIF files into the upload zone, or click to browse. Files up to 50MB each are supported.

2

Set the Quality

Use the quality slider — 85% is the sweet spot: dramatically smaller with no visible change. Go lower for thumbnails, higher for images you'll edit.

3

Download Optimized Files

Download individually or as a ZIP archive. Compare sizes — the savings speak for themselves.

Deep Dive

When Should You Compress Images?

Compress any image destined for the web: blog illustrations, product photos, hero banners, email attachments, and uploads with size limits. It's also the fix for bloated PNG screenshots — the single most common source of overweight web images. Don't compress your archival masters; keep originals pristine and compress copies for delivery.

Key insight: 85% quality is the industry's open secret: psychovisual research shows most viewers cannot distinguish 85% from 100% in normal viewing, yet file sizes roughly halve. Below ~70%, artifacts creep into gradients and textures; above ~92%, you're paying double the bytes for invisible gains. Start at 85 and adjust to taste.

Will Compression Hurt Quality?

At sensible settings, no visible change — that's the entire point of perceptual compression. But it is technically lossy: repeatedly compressing the same file compounds damage (generation loss). Golden rule: compress copies, never your only original. And for images needing further editing, compress last — after all edits are done.

Related: Want even smaller files? Convert to WebP after compressing. Need different dimensions too? Use the image resizer.

Converting formats? Try PNG to JPG.

Frequently Asked Questions

Typically 40–70% smaller at 85% quality. Phone photos and unoptimized PNG screenshots save the most; already-optimized web images save less. The tool shows you exact before/after sizes.

At 80–90% quality, no — perceptual encoders discard only what eyes can't detect. Pixel-peep at 200% zoom and you might spot softening in fine textures; in normal use, images look identical.

85% for general web use. Use 90–95% for portfolio images where fidelity is paramount, 70–75% for thumbnails and previews where size dominates.

Yes — PNG, JPG, WebP, and GIF are all supported. PNGs get lossless optimization plus optional quality reduction; photographic PNGs often shrink dramatically.

No. Compression runs entirely in your browser — files never leave your device, which is why there are no file limits or queues.

Yes — drop in dozens of images, set quality once, and download a ZIP. Perfect for optimizing a whole media library before a site migration.