Cyanotype: Blueprint Photo Lab

Cyanotype turns any photo into a blueprint print — the deep prussian-blue, sun-printed look of the world's first photographic process. One aesthetic, done perfectly.

No subscription. No account. Works offline. Your photos never leave your device.

Most filter apps do a hundred looks badly. Cyanotype does one look properly: a real duotone darkroom pipeline that maps your photo's tones between deep prussian blue and warm paper white, with film grain, a hand-coated paper wash, and a subtle vignette — tuned so the very first import already looks like a print worth framing.

SIX HAND-TUNED LOOKS

• Classic — the balanced, archetypal cyanotype

• Deep Sea — dark, cool, and dramatic

• Sun Print — airy, faded, sun-warmed paper

• High Contrast — bold blacks-to-blue and bright paper

• Faded Archive — soft, aged, found-in-a-drawer

• Night Blue — moody, low-key midnight prints

Every preset is a live thumbnail of your actual photo, so you pick with your eyes, not by name.

MAKE IT YOURS

• Tone — how deep the shadows sink into prussian blue

• Grain — real film-style grain, matched between preview and export

• Wash — how warm and sun-aged the paper highlights feel

• Matte borders in three widths for a gallery-print finish

• Press and hold to compare with your original at any time

BUILT LIKE A TOOL, NOT A TOY

• Instant live preview; full-resolution processing happens only when you export

• Saves finished prints to your photo library at full resolution

• Share sheet support for sending prints anywhere

• Your last look and settings are remembered between sessions

• No permission wall to get started — the photo picker needs no library access

Pay once, keep it forever. If you love the blueprint look, this is the lab that respects it.