Comprimir imagen online gratis — Compresor de fotos JPG, PNG, WebP y AVIF

Comprime imágenes online gratis sin perder calidad y sin registro

Drag your images here

or click to select files

(Up to files, max MB each)

Files
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Supported Formats
JPG · PNG · WebP · AVIF · GIF · TIFF

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Compress images online without losing quality

1

Less weight, same quality

Our engine analyzes each image and removes data imperceptible to the human eye. The result: noticeably lighter files with visual quality you won't notice a difference in.

Depending on the original format, resolution and optimization mode chosen, the reduction can range from 30% to over 80% on high-resolution images converted to AVIF. Less weight means faster-loading pages, users who stay, and better rankings on Google.

2

4 formats your way

Enable automatic conversion and choose from JPG, PNG, WebP and AVIF. Each format is generated compressed in the same process.

You don't have to choose between compatibility and performance. JPG for maximum compatibility, PNG for images with transparency, WebP for modern browsers and AVIF for the most advanced compression on the market — each one optimized with the ideal settings for that format.

3

Batches of up to 20 images

Process entire projects in seconds. Upload up to 20 images at once and download them all in a ZIP with a single click.

Optimizing image by image is a thing of the past. Drag up to 20 files at once (max. 50 MB per image), set your compression mode and let the engine work in parallel. When it's done, one button downloads everything in a ZIP ready to upload to your server, CMS or online store.

4

No watermarks

Your images are yours. Download results without limits, without watermarks and without losing the metadata you need to keep.

What you compress is yours, full stop. No overlaid logos, no digital watermarks, no mandatory sign-ups to download. The file you get is clean, professional and exactly like the original — just much lighter.

Use Cases

Less weight, more speed.

Every second an image takes to load is a user who leaves. Compress IQ removes unnecessary weight without touching visual quality — so your photos fly in any context: stores, portfolios, campaigns or websites.

JPG
PNG
WebP
AVIF

4 output formats

JPG · PNG · WebP · AVIF

4 formats

Output available

20 img

Per batch

E-commerce
-80%
JPG WebP
E-commerce

Lighter product photos, faster sales

In an online store, every millisecond matters. Product images are the heaviest element on a product page and the main reason users abandon before reaching the cart.

With Compress IQ you reduce your product photo weight by 70–85% without losing the sharpness that converts visits into sales. A catalog of 500 images that weighed 2 GB can end up under 350 MB — with no visible change for the buyer.

Photography
-86%
PNG AVIF
Photography & Portfolio

Your work deserves to load as fast as it looks

A slow portfolio contradicts the message of a professional photographer. High-resolution galleries are the slowest websites in the world — until they're properly optimized.

Convert your exported RAWs to AVIF or WebP and maintain print-quality on screen with files that weigh 5 times less. Your clients will see your work in seconds, not minutes.

SEO
-79%
PNG WebP
SEO & Web Performance

Optimized images, better Google ranking

Google uses load time as a direct ranking factor. Unoptimized images are the number one cause of poor Core Web Vitals — and pages that never reach the first page.

Optimizing your images is the technical SEO improvement with the best effort-to-result ratio. A site that goes from 8s to 2s load time not only climbs rankings: it reduces bounce rate, increases time on page and converts better.

Digital Marketing
-75%
JPG WebP
Digital Marketing

Same visual impact, half the weight

Digital campaigns handle hundreds of creatives per week. Uploading heavy images to Meta Ads, Google Display or email marketing slows down sends, increases storage costs and degrades the recipient's experience.

Process batches of up to 20 creatives at once, choose the optimal format for each channel and download the ZIP ready to upload. What used to take half an hour of manual editing, Compress IQ solves in seconds.

How to Optimize an Image?

  • 1. Upload Files

    Drag and drop your images or select them from your device. You can process multiple files at once.

  • 2. Adjust Optimization

    Choose a compression mode and the output formats you need, such as WebP or AVIF.

  • 3. Download Results

    Get your optimized images individually or as a convenient .ZIP file.

Compresor de imágenes para optimizar fotos en línea

Compress images instantly, up to 85% smaller.

Optimize JPG, PNG, WebP and AVIF free, no sign-up needed. Boost your website speed, improve your Google ranking and deliver a better user experience — in seconds.

Compresor de imágenes online — Compress IQ

Preguntas frecuentes sobre optimización de imágenes

General
Because heavy images are the leading cause of slow web performance. Google studies show that 53% of users abandon a site if it takes more than 3 seconds to load — and unoptimized images are the most common culprit. Compress IQ reduces your file weight by up to 85% while maintaining visual quality, directly improving key SEO metrics like LCP (Largest Contentful Paint) and Google Core Web Vitals. No software, no mandatory account, done in seconds.
You can upload JPG, PNG, WebP, AVIF, GIF and TIFF. As output you can choose JPG, PNG, WebP or AVIF depending on your use case. Modern formats like WebP and AVIF offer the highest compression with the best visual quality. Compress IQ automatically detects the file type and applies the most appropriate compression profile for each input format.
Yes. We use perceptual compression algorithms that remove only the data the human eye cannot detect — not visible pixels, but mathematical redundancies in the file. The result is visually identical to the original but significantly lighter. With the 'High Quality' preset, the difference is practically imperceptible even when zoomed in to 100%. You can compare before and after directly in the results panel before downloading.
Compress IQ was created to democratize image optimization. Professional tools like these only existed in paid software like Photoshop or were complex to integrate. Our mission is for anyone — designer, photographer, developer or online store owner — to optimize their images professionally, quickly and for free, without any technical knowledge required. A faster website shouldn't be a privilege reserved for those with a budget.
No. You can compress images completely for free without signing up — just drag your files and download. If you want access to advanced features like higher export resolution, unlimited batch processing or image history, you can create a free account or subscribe to a paid plan. Without registration, you get full access to the tool with up to 20 images per session.
On the free plan you can upload up to 20 simultaneous images per session (max. 50 MB per file). Registered and paid users have higher limits depending on their plan. Each image is processed independently with its own settings, guaranteeing the best individual result. When all are done, you can download them one by one or all together in a ZIP.
How does it work?
It's the process of reducing a photo's file size without significantly sacrificing visual quality. It involves removing unnecessary metadata, applying advanced compression (lossy or lossless), and optionally converting to the most efficient format for each context. Compress IQ uses smart compression algorithms that analyze each image individually to find the optimal balance between file weight and visual fidelity — directly impacting your website's load speed.
It depends on the mode you choose. Lossy compression removes data imperceptible to the human eye and achieves 70–85% reductions — ideal for product images, backgrounds and general web content. Lossless compression keeps every pixel intact and reduces file size by 20–40% — perfect for logos, screenshots and designs with text. Our quality presets let you choose the exact balance between size and fidelity. For portfolio photos we recommend 'High Quality'; for decorative images, 'Maximum Compression' is usually the sweet spot.
Savings depend on the original format, resolution and compression mode. In practice: a typical JPG is reduced by 30–60%, a PNG by 40–70%, and converting to AVIF can reach 80–85% savings over the original. A 5 MB image can end up under 800 KB with no appreciable visual difference. Results are displayed with the exact savings percentage for each file after processing.
Compression is practically instant. Most images are processed in under 2 seconds. The time may vary slightly for very large images (over 20 MB) or when processing large batches.
Yes. Compress IQ offers three presets: High Quality (maximum visual fidelity), Balanced (best quality/size ratio) and Maximum Compression (minimum file size). You can also adjust the level manually with the slider.
Yes. You can upload up to 20 images at once (max. 50 MB per file). All are processed in parallel with the same quality and format settings. When done, you can download each image individually or grab them all in a single ZIP file ready to use.
Formats

You can upload images and, using our selection toggles, convert them to multiple output formats depending on your use case. Available output formats:

JPEG PNG WebP AVIF

Additionally, you have a quality slider to fine-tune the compression level, plus three quick presets (High Quality, Balanced, Maximum Compression) to speed up your workflow.

WebP is Google's modern format, compatible with virtually all current browsers (Chrome, Firefox, Safari, Edge). It offers 25–35% less weight than JPG at equivalent quality and supports transparency. AVIF is the next generation — it compresses up to 50% more than WebP at the same perceptual quality, but requires slightly more processing and has limited support on very old browsers. For most websites, WebP is the safe universal choice; if you prioritize maximum savings and your audience uses modern browsers, AVIF is unbeatable.
Yes. In addition to compressing, you can convert between JPG, PNG, WebP and AVIF. The conversion happens alongside compression in a single step, with no extra steps or additional quality loss.
WebP is the safest choice today: it has universal support in modern browsers and offers 25–35% less weight than JPG/PNG at the same quality. If you prioritize maximum savings, AVIF can reduce up to 50% more. For maximum compatibility use JPG (photos) or PNG (graphics with transparency).
Privacy & limits
Absolutely. Your original files are never altered at any point. All processing takes place on secure servers with encrypted connections (HTTPS). Uploaded files are permanently deleted from our servers after 60 minutes, no exceptions. Your images are never shared with third parties, analyzed for commercial purposes, or used to train AI models.
No. Your images are never shared with third parties or used to train models. All processing takes place on our secure servers and files are automatically deleted after the session.
Yes. You can upload up to 20 images at once (max. 50 MB per file). All are processed in parallel with the same quality and format settings. When done, you can download each image individually or grab them all in a single ZIP file ready to use.
To make your website load faster, improve its Google ranking (SEO), save storage space, and provide a better experience for your users. Images represent on average 60–70% of a web page's total weight. Optimizing them is the single highest-impact action you can take to improve speed without touching code.