Image Compressor

Compress image to Under 5 MB for Email

Tightly-managed corporate mail (banks, gov agencies) often caps at 5 MB.

Your images stay on your device. Nothing is uploaded.

Financial services, government agencies and legal firms commonly cap attachments at 5 MB. That's the safest ceiling for B2B cold outreach, RFP responses, and any 'send to unknown corporate address' workflow.

This preset produces a 2400 px JPEG at quality 88 — safe for the tightest corporate mail caps.

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Frequently asked questions

What's the attachment size limit for Email (5 MB cap)?
Email (5 MB cap) 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 Email (5 MB cap)?
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 Email (5 MB cap) compress images automatically?
Email (5 MB cap) 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 Email (5 MB cap)?
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 Email (5 MB cap).

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

Start compressing