Email bouncing back because your photos are too big? This free in-browser tool lets you compress JPEG images for email so they slip under Gmail's and Outlook's attachment limits — batch them, zip them, and send. No upload to a server, no file size limits, fully private.
Most email providers cap a single message — including all its attachments — at roughly 20 to 25 MB. Modern phone photos are 3–6 MB each, so even a handful of them can blow past the limit. Compressing your JPEGs first typically reduces each file by 40–80%, which is usually enough to fit them all in one email.
| Provider | Attachment limit | Note |
|---|---|---|
| Gmail | 25 MB | Larger files switch to a Google Drive link |
| Outlook.com | ~20 MB | OneDrive link offered above the limit |
| Microsoft 365 / Exchange | 20–25 MB | Often set by your IT admin |
For viewing on a screen, compressed JPEGs look virtually identical to the originals — perfect for sharing trip photos, receipts, or product shots. If your recipient needs print-resolution originals, send those through a cloud link instead and use compression for everyday email. Remember: JPG and JPEG are the same format, so a .jpeg compresses for email exactly like a .jpg.
Gmail allows 25 MB per message; Outlook.com and most Microsoft 365 mailboxes allow about 20 MB. Files over the limit are usually offered as a cloud link instead.
Compression typically cuts JPEG size by 40–80%, so you can fit several times more photos. Ten 4 MB photos (40 MB, too big) often drop well under 25 MB.
On screen, no — the difference is virtually invisible. For print-quality originals, share a cloud link instead.
Yes — same format, .jpg is just the shorter extension. Both compress for email identically.
