5 min read
Compress images for email attachments that actually get delivered
Client inbox bounced your mockups because the attachment exceeded 10 MB — again?
Your designs are clear — your attachment limit is not
Screenshots, mood boards, and signed PDFs balloon past corporate mail gateways. You zip, resend, and still get "message blocked" from security filters that treat large images like threats.
Upload-to-compress tools leak client work
Quick compress sites trade confidentiality for convenience:
- Unreleased campaign art sits on public optimizer queues
- Aggressive defaults blur UI text you need legible
- Download pages bundle unrelated ad trackers
- No batch control when you have twelve review files
Shrink attachments locally before you hit Send
SnapKit compresses images in-browser with a live size readout — you choose quality, not a remote algorithm.
Compress with a target size in mind
Drop files into compress image and watch KB drop before attaching.
Convert heavy PNG to lighter formats
Pair with convert image when PNG transparency is not required.
**Your files never leave the browser.** SnapKit runs WebAssembly, FFmpeg, and Canvas directly in your RAM — instant speed, zero cloud uploads, and privacy you can actually trust.
Try the tools mentioned in this article
AI background remover online
Remove image backgrounds instantly with on-device AI. Supports PNG, JPG, WebP, and HEIC. 100% client-side WASM processing — no upload, HD PNG export, free.
Compress images online
Shrink JPG, PNG, and WebP photos in seconds with smart compression. 100% client-side processing, no server upload, secure and free.
Convert image format online
Convert HEIC, PNG, WebP, SVG, BMP, GIF, and JPG in your browser. Turn iPhone HEIC photos to JPG, PNG to WebP, SVG to PNG, or JPG to ICO — 100% client-side, no upload, private and free.