Kelp Market · Desktop app · 2026
Nobody has seen
your best work.
You've got years of photos that never went online. No scraper got them, no model trained on them, most people have never even looked. On Kelp Market that's not dead weight. It's the one thing buyers can't get anywhere else. The desktop app gets it off the drive and onto the market, and nothing leaves your machine until you publish.
local index · on-device PRNU · RAW + JPEG · macOS
Local-first
Nothing leaves your machine
until you publish
stays on your machine
- the full index of your archive
- previews and thumbnails
- EXIF keywords and classifications
- sensor fingerprints (PRNU)
- gear challenge verification
goes out when you publish
- the assets you selected
- their signed proofs
- your partner attribution
Scan, keyword, verify. It all happens locally. The only thing that touches the network is publish, and publish needs your sign-in.
What it does
The drive is the easy part
01 — Point it at a folder
Pick a folder and the app reads everything into a local index, previews included. It takes JPEG, PNG, TIFF, WebP, and RAW files from all the big brands: DNG, ARW, CR2, CR3, NEF, ORF, RAF, RW2.
02 — New shots get picked up
Add files to a folder you've already indexed and the app indexes them on its own. Files that didn't change don't get reprocessed.
03 — Keywords stay on-device
It reads keywords off your EXIF and classifies the shots, all locally. The index and the previews never leave the machine.
04 — Proof happens on your machine
Photograph the challenge code with your camera and lens. The app checks the serials right there. Sensor fingerprints are computed locally too.
05 — Publish when you are ready
Publishing is the only step that needs you signed in. Until you hit it, nothing leaves the disk.
JPEG · PNG · TIFF · WebP · DNG · ARW · CR2 · CR3 · NEF · ORF · RAF · RW2
For creators
Put the archive to work.
macOS · Windows · Linux · for approved partners