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Reduce image file sizes so they fit email attachment limits. Compress JPG, PNG, and WebP photos without visible quality loss. Free and private.
Email providers impose attachment size limits: Gmail allows 25MB, Outlook 20MB, and many corporate servers cap at 10MB. A single photo from a modern smartphone can be 5-12MB, and sending just a few images exceeds the limit. Manually opening each image in an editor, reducing quality, and re-exporting is slow and tedious — especially when you need to send a batch of photos to a client or family member.
Our Image Compressor reduces photo file sizes by 60-80% without visible quality loss. Drop in your images, choose a quality level, and download compressed versions that fit comfortably within email attachment limits. Batch processing lets you compress multiple photos at once. Nothing leaves your device — all compression runs locally in your browser.
Open Image CompressorNavigate to the Image Compressor tool on OnlineTools4Free.
Drag and drop the photos you want to email. The tool accepts JPG, PNG, WebP, and HEIC files.
Choose a compression level. 80% quality typically reduces file size by 60-70% while keeping photos looking sharp. For screenshots and simple images, 70% works well.
Click Compress and compare the before/after file sizes. The side-by-side preview shows exactly what the recipient will see.
Save the compressed images and attach them to your email. Multiple photos that previously exceeded the limit now fit comfortably.
No signup, no upload, 100% private. Works right in your browser.
Open Image Compressor