Email · 24KB · Offline

Compress for email
smaller attachments

Email clients reject large images. Shrink attachments below the 24KB Gmail cap, batch a folder, export WebP — no upload service, your images stay on your PC.

Download for Windows Best format →
Email · Attachment limit · Offline
24KB Gmail cap70.9% jpg→webp avgOffline mode
Why email

Large images.
Failed attachments.

Gmail and Outlook cap file sizes — a single photo can block your whole email. Shrink images first, send anything.

Hit 24KB

The Gmail attachment cap — quality + resize to land under it.

Export WebP

Smaller at same quality — best for product shots and screenshots.

Batch a folder

Compress every attachment at once, then attach the small files.

Proof

Email savings

ConversionBeforeAfterSaved
JPG → WebP2.4 MB1.6 MB−32%
PNG → WebP1.9 MB540 KB−71%
Photo at 800px540 KB42 KB−92%
Rules
Hit 24KB The Gmail attachment cap — quality + resize to land under it.
Export WebP Smaller at same quality — best for product shots and screenshots.
Batch a folder Compress every attachment at once, then attach the small files.
For the strictest cap resize to 800px + WebP at 75 — often under 24KB.
How it works

Shrink → Attach → Send.

Three steps, all local.

01 01
Select images

Drop the folder with attachments — photos, screenshots, logos.

02 02
Compress

Resize 800px, WebP at 75, strip metadata. Preview per file.

03 03
Attach

Attach the small files — no cap, no bounce.

Related

More for email

FAQ

Email — FAQ

What is the email image limit?

Gmail caps attachments around 24KB per inline image, Outlook 20MB total. Shrink inline images well under the cap; Compressy shows the size before you attach.

Will WebP work in email?

Most modern clients render WebP, but keep JPG for maximum compatibility. Compressy exports both so you can pick per audience.

Can I batch all my attachments?

Yes. Drop the folder — Compressy compresses every image and shows per-file savings before you attach.

Do I need to upload?

No. All compression is local. No upload, no account.

Email-ready images. Your PC does the shrink.
For email — small attachments without the cloud.
Download for Windows Try 50KB →