Jefferson Photography Studio

Free, on-device photo tools that run entirely in the browser — no upload, no account, no install required, and everything keeps working offline.

Live: https://jefferson-photo-studio.pages.dev (staging: https://staging.jefferson-photo-studio.pages.dev)

The tools

• / — the Studio launcher: a two-door chooser, installable as its own Home-Screen app (with a pickable icon).
• /ir — Infrared Editor. The reason this project exists: color-IR channel-swap editing with white balance far below the range ordinary editors allow (sub-2000K — the move Lightroom floors out on). Decodes Nikon NEF and DNG raw files in pure JS/TypeScript (bit-exact vs LibRaw), edits on the GPU (WebGL2), exports JPEG / 16-bit TIFF plus .cube LUTs and .dcp camera profiles. Ships with a RAW practice library and built-in lessons.
• /macro — Macro Studio. Merges an in-camera focus-shift burst into one frame that's sharp front to back, keeping the background soft.

Values

Free · on-device · offline-first · no account · no upload · no tracking (privacy).

Accessibility is a top priority. Color is never the only carrier of meaning, contrast is measured against WCAG in both themes, progress announces to screen readers, and page zoom is never locked. See the standing rule in CLAUDE.md — it's a design-time requirement, not an afterthought.

Tech

No framework. Vite + TypeScript, WebGL2 pipeline, pure-JS raw decoders (lossless-JPEG/LJ92, Nikon compressed NEF), an offline-first service worker with a build-time precache manifest, and route-split bundles (the IR editor never loads the macro engine, and vice-versa). Deployed to Cloudflare Pages by .github/workflows/deploy.yml — main is production, staging is the preview site.

npm ci        # install (vite + typescript only)
npm run dev   # local dev server
npm run build # type-check + production build into dist/

How this repo is driven

Development happens in Claude sessions on an iPad. CLAUDE.md holds the standing rules (release gate, verification requirements, accessibility mandate); NOTES.md is the source of truth — the roadmap queue, settled decisions, and measured gotchas. Commit subjects are the user-facing patch notes (rendered in the app's ⓘ dialog and on /notes); versioning is the VERSION file plus automatic point releases from commit counts.

License

All rights reserved — see LICENSE. The app is free to use at the published URL; the source code and the example photographs (all © Noah Jefferson) are not licensed for reuse.