⚡ 100% Free • Unlimited Compression • No Upload • Private

Free Image Compressor with Unlimited Compression

Instantly compress photos and shrink image sizes for email attachments. Bypass Gmail and Outlook's 25MB limits by optimizing your files for fast, error-free sending. Compress JPEG, PNG, and WebP images instantly with no limits, no signups, and complete privacy — all directly in your browser.

Upload Image

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Compression Settings

Flexible Image Compression for Every Need

Instantly compress photos and shrink image sizes for email attachments. Bypass Gmail and Outlook's 25MB limits by optimizing your files for fast, error-free sending.

Use Case

Perfect for professionals sending scanned documents, photographers sharing image proofs, or anyone trying to attach a batch of heavy smartphone photos via Gmail, Outlook, or Apple Mail.

How It Works

There is nothing more frustrating than writing a detailed email, attaching your photos, and getting hit with a 'File Size Exceeds Limit' error. Email providers like Gmail and Outlook strictly cap attachments at 20MB to 25MB. Because modern smartphone cameras take massive, high-resolution photos, attaching just 3 or 4 pictures can block your email from sending. Our email image compressor is specifically designed to fix this. By defaulting to a smart 800-pixel maximum width—which fits perfectly inside the reading pane of most email clients—and a balanced 50% JPEG quality, you can drastically shrink heavy megabyte photos down to a few lightweight kilobytes. Plus, because processing happens entirely locally in your browser, you never have to wait for slow server uploads when you are in a rush to hit 'Send'.

What You Get

Optimized images that balance quality and file size for faster uploads.

Frequently Asked Questions

Everything you need to know about compressing images online.

Gmail allows up to 25MB per email, while Outlook typically restricts attachments to 20MB. By compressing your images first, you can attach dozens of photos in a single message without triggering an error.
Standard desktop email clients and mobile screens display embedded images at smaller dimensions. 800 pixels is the perfect 'goldilocks' width—it looks completely crisp and professional when viewed in an inbox, but strips away massive amounts of unnecessary file weight.
Yes! While the underlying digital weight is drastically reduced to bypass email limits, our smart 'lossy' compression retains the core visual fidelity. Your scanned documents, presentations, and photos will look clean and professional to the recipient.
Absolutely. Your privacy and corporate security are guaranteed. The compression engine is powered entirely by your browser's local HTML5 Canvas. Your sensitive work files are never uploaded to our servers or transmitted across the internet.