Image Compressor

Compress image for HubSpot Email

HubSpot email templates render at 600 px max; upload at retina resolution and JPEG format.

Your images stay on your device. Nothing is uploaded.

HubSpot Marketing Hub's email templates render images at 600 px max width in default templates. HubSpot accepts images up to 20 MB but sensible practice is landing at 500 KB for retina rendering.

This preset produces a 1200 px JPEG at quality 82 — HubSpot-optimal.

Frequently asked questions

What's the attachment size limit for HubSpot Email?
HubSpot Email caps attachments at the size the preset on this page targets. Anything above the cap either gets rejected or gets converted to a link-share fallback (like Gmail's Drive attachment).
Why compress before attaching to HubSpot Email?
Recipients may be on slow mobile connections, and their servers may enforce lower caps than yours. Compressing before send maximises deliverability and speeds up download for recipients on mobile.
Does HubSpot Email compress images automatically?
HubSpot Email does not re-compress attachments the same way social media platforms do — what you send is what the recipient receives. So the size at send equals the size at receive.
What format is best for HubSpot Email?
JPEG is the safest universal choice for email attachments — every email client can preview it inline. WebP support varies (Outlook desktop can't preview WebP), so JPEG remains the default.
Is my image uploaded to a server?
No. Compression runs entirely in your browser. Only when you attach the compressed result to your email does it leave your device.

Compress an image for HubSpot Email.

Land under the target size in seconds. Nothing uploaded — runs entirely in your browser.

Start compressing