Image Compress

Upload images to reduce file size by adjusting quality.

Drag images here or click to select

JPEG, PNG, GIF, WebP, AVIF · Max 5MB per file

Compress Images Online — Free, Fast & No Quality Loss

Reduce the file size of your images instantly — no software, no sign-up required. Our free online image compressor uses smart compression algorithms to shrink your JPEG, PNG, GIF, WebP, and AVIF files while preserving visual quality. Use the quality slider to find the perfect balance between file size and image clarity. Whether you're optimizing photos for a website, preparing images for email, or freeing up storage space, you'll get smaller files in seconds.

Online image compressor — reduce JPEG, PNG, WebP file size while preserving quality
Step by step

How to Compress an Image Online

  1. 1

    Upload your image

    Drag and drop or click to select a JPEG, JPG, PNG, GIF, WebP, or AVIF file.

  2. 2

    Adjust the quality slider

    Move the slider to control the compression level. Lower values produce smaller files; higher values preserve more detail.

  3. 3

    Download your compressed image

    Click download and save your optimized file instantly.

No account required. Your files are never stored on our servers.

Formats

Compress JPEG, PNG, WebP & More

JPEG / JPG

The most common format for photos. Ideal for high-resolution images with natural colors and gradients.

PNG

Supports transparency. Great for logos, screenshots, and graphics.

GIF

Compress animated or static GIFs without losing animation frames.

WebP

Google's modern format. Compresses significantly smaller than JPEG at equivalent quality.

AVIF

Next-generation format with excellent compression efficiency for modern browsers.

Reference

Compress an Image to a Specific File Size

Need your image under a certain size — like 100KB, 200KB, or 50KB? Use the quality slider to fine-tune compression until you hit your target. Here's a quick reference:

Target Size Recommended Quality Range
Under 20 KB 10 – 25%
Under 50 KB 25 – 40%
Under 100 KB 40 – 60%
Under 200 KB 60 – 75%

Results vary depending on original image content and dimensions. Adjust the slider and preview before downloading.

Web Performance

Optimize Images for Your Website or WordPress

Page load speed is one of Google's ranking factors — and images are usually the biggest culprit. Unoptimized images slow down your site, increase bounce rates, and hurt your SEO. Before uploading images to your website, compress them to:

  • Improve Core Web Vitals — Lower LCP (Largest Contentful Paint) scores by reducing image file sizes.

  • Reduce bandwidth usage — Smaller images mean faster page loads, especially on mobile.

  • Pass Google PageSpeed Insights — Most audits flag uncompressed images as a top issue.

WordPress tip: Compress your images here before uploading to the media library. This avoids relying on server-side plugins and gives you full control over output quality.
Pro Feature

Bulk Image Compression

Need to compress multiple images at once? Our bulk compression tool lets you upload and process several files in one go — perfect for:

  • E-commerce — Compress dozens of product images before publishing.

  • Blog posts — Optimize featured images and inline photos in one batch.

  • Deliverables — Send compressed photo sets via email or cloud storage.

Bulk processing is available on Pro

Process multiple files in one click.

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Use Cases

Why Compress Images?

Websites & blogs

Large images are the #1 cause of slow-loading pages. Compressing before uploading reduces page weight and improves user experience across all devices.

Email attachments

Most email clients have a 25 MB attachment limit. Compressing photos makes it easy to send multiple images without hitting size restrictions.

Social media

Platforms like Instagram and Facebook recompress your uploads, often degrading quality. Pre-compress to maintain more control over how your photos appear.

Storage & backup

Archiving large photo collections? Compressing images can cut storage requirements significantly without noticeable quality loss at normal viewing sizes.

FAQ

Frequently Asked Questions

Does compressing an image reduce its quality?

It depends on the compression level. Lossy compression (JPEG, WebP) removes some image data — at moderate settings, the difference is barely visible to the human eye. Use the quality slider to preview results before downloading.

How do I compress an image to under 100 KB?

Upload your image, set the quality slider to around 40–60%, and check the output file size. Adjust down if needed. For very large originals, you may need to go lower.

Is it safe to compress images online?

Yes. Your images are processed directly and are not stored, shared, or used for any other purpose. We do not retain your files after processing.

What's the best format for compressed web images?

WebP offers the best balance of file size and quality for most web use cases and is supported by all major modern browsers. AVIF is even more efficient but has slightly lower browser support. JPEG remains the safest choice for maximum compatibility.

Can I compress a PNG without losing transparency?

Yes. PNG compression preserves the alpha channel (transparency). Your compressed PNG will retain any transparent areas from the original file.

What's the difference between lossy and lossless compression?

Lossy compression (JPEG, WebP) permanently removes some data to achieve smaller files. Lossless compression (PNG) reduces file size without removing any image data — but the reduction is usually smaller. For photos, lossy is almost always the better choice.

Last updated: May 2026