Retouch a photo

Models and downloads

Everything this site downloads to your device

Every retouching tool here works with no download at all. Two optional pieces are fetched only when you press a button that names them, and one decoder only when you open a HEIC photo. This page lists each file with its exact size, licence and checksum. None of them sends anything back.

Face finder

Places the working region over each face and marks the eyes for the red-eye scan. It returns a box and five points per face — no identity, nothing kept. It is downloaded from our model file server the first time you press Find the face, kept in this browser’s cache, and can be deleted from the desk.

Face finder model
File
face_detection_yunet_2026may.onnx
Size
229,738 bytes
Precision
fp32
Licence
MIT (OpenCV model zoo, YuNet)
SHA-256
ebafce4e3c118d6554634be5c27ab333b4c047a9a8c3faf1d7cf93101c22f0f0
Kept as
rp-face-model-v1 in this browser's cache, written only on an exact length match

Model runtime

Runs the face finder in this tab. Served from this site, loaded only when the face finder is used, and kept by your browser’s normal cache.

ONNX Runtime Web 1.29.0, single-threaded WebAssembly
File
ort/ort-wasm-simd-threaded.wasm
Size
13,961,845 bytes
SHA-256
ec8580a9d7b9476ceee52e10a7f94124e4dc71a019d666ed6d4726697c109a4d
Loader
ort/ort-wasm-simd-threaded.mjs · 24,218 bytes · SHA-256 5a15f1fd086b3f6c2baf1f35105b8f502653b567e165cef80028870b39748747
Licence
MIT

HEIC decoder

iPhones save photos as HEIC, which browsers other than Safari cannot open. The first time you open one, a decoder is loaded from this site so the photo can be read in this tab. JPG, PNG, WebP and the other formats need nothing extra.

HEIC decoder
Library
libheif-js 1.23.2 (WebAssembly build of libheif)
Licence
LGPL-3.0
Loaded
only when a HEIC file is opened

Not shipped

Two kinds of model are on the plan and not in this build: a learned spot finder and a face-parsing model that would trace brows, eyes and lips exactly. Neither ships until its weights and training data are cleared for commercial use, it fits the size limit, and its accuracy has been measured across skin tones and published. Until then the spot finder is a plain measurement that proposes and never applies, and the face finder places an oval rather than tracing features.

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