Image compressor
100% private — no upload
Most email providers cap attachments at 10–25MB, but large images slow down inboxes and often get blocked by corporate mail filters. Compress your photos to under 1MB before attaching — all in your browser, no server involved.
PNG, JPG, GIF, WebP, HEIC up to 50MB per file
Choose filesAim for under 1MB per image. At 70% JPEG quality and 1280px max dimension, most photos land between 100–400KB — clear enough to view on screen, small enough not to clog inboxes.
Corporate mail servers, spam filters and mobile email clients often block or strip attachments over 1–5MB. Compressing before sending prevents rejected messages and storage quota issues.
Yes. Drag all your photos at once and download them as a ZIP — then attach the individual compressed files to your email.
JPEG for photos — it achieves the smallest sizes. Only use PNG if the image has transparency or is a screenshot/diagram where sharp edges matter more than file size.