imgflow.io
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Συμπίεση εικόνων online

Συμπιέστε εικόνες JPG, PNG και WebP μαζικά χωρίς απώλεια ποιότητας.

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Step 1 of 3
Upload

Add your product images. Nothing leaves your browser.

JPG, PNG, WebP, GIF
Multiple files at once
Private — stays local
YOUR WORKFLOW
Compress
Preview
Drop images here
JPG, PNG, WebP, GIF
100% private · no uploads · bulk & fast

Compress images online without losing quality

Reduce image size by up to 80% while keeping perfect quality. Process multiple images in your browser. No uploads, no waiting, no limits.

Your images never leave your device
Up to 80% smaller file size
100% safe & secure
Works offline in your browser
See the difference

Smaller size. Same quality.

Our smart compression removes unnecessary data while keeping your images sharp and clear.

Up to 80% smaller file size
No visible quality loss
Ideal for web, SEO & e-commerce
10.0 MB
1.3 MB
−87%
product-1.jpg
2.4 MB
312 KB
−87%
product-2.jpg
1.8 MB
234 KB
−87%
product-3.jpg
3.1 MB
403 KB
−87%
product-4.jpg
2.7 MB
351 KB
−87%
How it works

Compress images in 3 simple steps

1

Upload your images

Drag & drop or select multiple images from your device.

2

Choose your settings

Pick the compression level and output format you prefer.

3

Download optimised files

Get all your optimised images instantly as a ZIP file.

Perfect for

E-commerce, blogs & more

E-commerce Stores

Speed up product pages and increase conversions. Ready for PrestaShop, WooCommerce and Shopify.

SEO & Websites

Improve Core Web Vitals and boost your Google rankings.

Bloggers & Publishers

Deliver faster content and better user experience.

Social Media

Optimise images for Instagram, Facebook, LinkedIn & more.

What image formats are supported?

All popular image formats are supported so you can work with any file, any time.

JPG / JPEGPNGWebPGIFBMP

Frequently asked questions

Does compressing images affect quality?

We reduce file size while keeping images visually sharp. You can adjust the compression level depending on whether you prefer smaller files or higher quality.

What image formats are supported?

You can compress JPG, JPEG, PNG, WebP and GIF images directly in your browser.

How much can I reduce my image file size?

Many images can be reduced by 50% to 80%, depending on the original format, dimensions and selected quality level.

How does it work without uploading?

All image processing happens locally in your browser using the Canvas API. Your files are never sent to any server.

Is my data safe?

Yes. Since your images never leave your device, your private files stay completely under your control at all times.

Is it free?

Yes. You can compress up to 10 images per batch for free. The Pro plan (4.99€/month) unlocks unlimited batches.

Can I compress images in bulk?

Yes. Our tool works as a bulk image compressor and lets you download all optimised files together as a ZIP.

How is this different from other tools?

We focus on privacy, speed and e-commerce workflows. Your images stay in your browser — no uploads, no plugins, no friction.

Your images never leave your device

All processing happens 100% inside your browser using the Canvas API. We never upload, store or track your files. Your privacy is safe — unlimited and always protected.

Try for free →
No sign-up required

Why Image Compression Is the #1 E-Commerce SEO Fix

Page speed is one of Google's top ranking factors — and images are responsible for over 50% of a web page's total weight. A slow store doesn't just hurt your SEO rankings. It kills conversions before they happen.

Research from Google shows that 53% of mobile users abandon a page that takes more than 3 seconds to load. For every additional second of load time, conversion rates drop by up to 7%. If you're running a PrestaShop, WooCommerce or Shopify store with hundreds of product images, unoptimised files are costing you money every single day.

Image compression is the single most impactful technical SEO improvement available to most e-commerce stores — and it costs nothing to implement with imgflow.

↑ Better Google rankings ↑ Faster Core Web Vitals ↑ Higher conversion rate ↓ Server & CDN costs ↓ Bandwidth usage

How to Compress Images Without Losing Quality

The key to effective image compression is finding the right balance between file size and visual quality. imgflow uses smart lossy compression that removes invisible data from your images — data the human eye cannot detect at normal viewing distances.

For most product images, a quality setting between 75% and 85% achieves the optimal balance: files that are 60–80% smaller than the original, with no visible quality difference on any screen size.

1
Upload your images

Drag and drop up to 10 images (free plan) or unlimited (Pro). JPG, PNG, WebP and GIF are all supported. No file size limits.

2
Set your quality level

Use the quality slider to choose between maximum compression (smallest file) and maximum quality (sharpest image). The live preview updates instantly — showing exact KB before and after.

3
Download your ZIP

Process your entire batch in seconds. All compressed images are packaged in a ZIP file — ready to upload directly to PrestaShop, WooCommerce, Shopify or any other platform.

Compress Images for PrestaShop, WooCommerce and Shopify

Every e-commerce platform has its own recommended image sizes and quality thresholds. Here are the settings we recommend for the most popular platforms:

PlatformRecommended qualityTarget file sizeBest format
PrestaShop75–85%< 200 KBWebP or JPG
WooCommerce75–85%< 200 KBWebP or JPG
Shopify80–90%< 250 KBWebP or JPG
Amazon85–95%< 500 KBJPG (white bg)
eBay80–90%< 500 KBJPG
Etsy80–85%< 300 KBJPG or WebP

Combining compression with format conversion to WebP will achieve the best results on modern platforms. WebP files are typically 25–35% smaller than equivalent JPG files at the same visual quality.

Image Compression and Google Core Web Vitals

Google's Core Web Vitals are a set of page experience signals that directly influence search rankings. Two of the three Core Web Vitals are directly impacted by image optimisation:

LCP
Largest Contentful Paint

LCP measures how long it takes for the largest visible element on the page to load. On most product pages, this is the main product image. Compressing your hero image is the fastest way to improve your LCP score — and therefore your rankings.

CLS
Cumulative Layout Shift

When images load slowly or without defined dimensions, they cause the page layout to shift as they appear — a poor experience that Google penalises. Properly sized and compressed images load faster and reduce layout shifts.

INP
Interaction to Next Paint

Heavy pages with large uncompressed images take longer to become interactive. Reducing image weight directly improves your store's responsiveness score.

Lossy vs Lossless Compression — Which Should You Use?

Lossy compression (used by imgflow) removes some image data to achieve smaller file sizes — typically reducing files by 60–80% with no visible quality difference at 75–85% quality settings. This is the industry standard for e-commerce product images.

Lossless compression reduces file size without removing any data, achieving more modest reductions (typically 10–30%). This is appropriate for images that require pixel-perfect accuracy — icons, logos with flat colours, and technical diagrams.

For the vast majority of product photography, lossy compression at 75–85% quality is the right choice. Your customers cannot tell the difference, Google cannot tell the difference, but your page speed scores absolutely can.

Frequently Asked Questions

Does compressing images affect SEO?
Yes — positively. Smaller images lead to faster page load times, which is a direct Google ranking signal. Google's Core Web Vitals, specifically LCP and CLS, are directly impacted by image file size. Compressing your product images is one of the fastest and most impactful technical SEO improvements available to any e-commerce store.
How much can I reduce my image file sizes?
Typically 40–80% reduction without visible quality loss. A 2MB product photo compressed at 80% quality will often reduce to 300–500KB — still sharp on any screen, but loading 4–6× faster. WebP conversion combined with compression can achieve even greater reductions.
Are my images uploaded to a server when I compress them?
No. imgflow processes all images 100% inside your browser using the Canvas API. Your files never leave your device. This means zero privacy risk, instant processing, and no waiting for server uploads or downloads — regardless of your internet connection speed.
Can I compress images in bulk for my entire product catalogue?
Yes. The free plan allows up to 10 images per batch. The Pro plan offers unlimited batch processing — ideal for large catalogues with hundreds or thousands of product images. You can combine compression with renaming, resizing and format conversion in a single workflow.
What image formats does the compressor support?
imgflow supports JPG (JPEG), PNG, WebP and GIF compression. For best results, compress and convert JPG and PNG images to WebP simultaneously — you'll achieve the smallest possible file sizes with the highest visual quality.
How do I compress images for Google PageSpeed Insights?
Google PageSpeed Insights recommends serving images in next-gen formats (WebP), sizing images correctly, and efficiently encoding images. imgflow addresses all three: compress your images at 75–85% quality, convert to WebP, and resize to exact display dimensions. This will typically resolve most image-related PageSpeed warnings.
What's the best image compression tool for PrestaShop?
imgflow is specifically designed for e-commerce workflows. It lets you compress, resize and rename your PrestaShop product images in bulk — all in one step, all in your browser. No plugins, no modules, no server-side processing required. Simply compress your images before uploading them to your PrestaShop back office.