How to Compress Images for Email Free

Under 500KB per image is ideal for email. Most recipients' inboxes and email clients handle this without issues. If you're sending multiple images, keep the total attachment size under 5MB. Above 10MB, consider using a file sharing link (Google Drive, Dropbox) instead of an email attachment.

Gmail has a 25MB attachment limit, but large images slow down delivery and fill recipients' inboxes. Compress your image to under 500KB using the Image Compressor at 80–85% quality, then attach the compressed version. For multiple photos, compress each one individually or use the Bulk Compress option.

At 80–85% quality, the difference is invisible in an email preview or when viewed on screen. You would only notice compression artifacts if you printed the image at large scale. For email communication, 80–85% quality is indistinguishable from the original.

Yes. Upload your PNG to the Image Compressor and set quality to 80–85%. PNG files compress differently from JPG — the tool will optimise the palette and remove metadata to reduce the size. If the PNG contains a photograph rather than a graphic, consider converting to JPG first for much better compression.

Try reducing the quality setting further (to 60–70%) for a smaller file. If the image is very large in dimensions (e.g. 4000×3000px), also resize it to a smaller resolution (e.g. 1920×1080px or 1280×960px) using the Resize tool before compressing — this has the biggest impact on file size.