About

Built for people who ship images

Comprestack optimizes images without making photographs worse — compress, convert, or both — for freelancers, small teams, and products that need an API.

Why we exist

Optimization should feel like craft, not compromise

Most image tools either oversimplify until quality slips, or bury useful options behind clutter. We wanted something quieter: drop a file, keep the look, leave with a smaller download.

That same idea became an API, white label options, and a dashboard you can hand to clients — still with the short retention and no-training promise.

Hands reviewing a photo print on a wooden desk

What we care about

Three promises we keep every day

  1. 01

    Quality first

    Optimization should feel invisible. We remove what eyes don’t need and keep the photograph you meant to ship.

  2. 02

    Private by default

    Uploads are encrypted in transit and deleted within 1 hour. We don’t sell images or train AI on them.

  3. 03

    Useful on day one

    Try as a guest, keep a free account, or plug in the API when volume shows up — no enterprise maze to start.

Belfast City Hall on Donegall Square under soft Northern Irish daylight

Where we’re based

Made in Belfast, United Kingdom

Comprestack is run by a small team. Support comes from a real inbox — not a ticket black hole. Reach us anytime at hello@comprestack.com.

Ready when you are

Compress a few images for free, or dig into the API when you’re wiring it into a product.