A good eye, and respect for yours.

Bluehour is a photo editor with an AI colourist. It looks at your photo and edits with the same sliders you use, saying why as it goes. Take a slider whenever you like: it lets go, and keeps to your moves.

Editing by hand is free. Your photos stay on your device.

Peyto Lake at dusk, as the colourist edits it
Grab any slider to take over.

Light

Color

Color grading

Presets can't see. Bluehour looks first.

A preset puts the same numbers on every photo. Bluehour looks first, then picks the numbers for that photo's light.

make it feel like blue hour
Peyto Lake, blue hour
Lake at dusk
Exposure
−0.45−0.45
Temperature
−1500 K−1500 K
Contrast
+14+14
Shadows
00

The photo the preset was made on. Of course it fits.Cooler and darker, blue shadows, the last warm light kept on the peaks.

Loch Assynt with the presetLoch Assynt as Bluehour edited it
Fog in the hills
Exposure
−0.45−0.60
Temperature
−1500 K−1500 K
Contrast
+14+20
Shadows
00

Close, but the fog stays a flat grey-white.Darker and cooler, blue in the fog too. The ruin and hills stay readable.

A still life indoors with the presetThe still life as Bluehour edited it
A dim room
Exposure
−0.45+0.50
Temperature
−1500 K−2100 K
Contrast
+14+15
Shadows
0+35

Already dark, now darker: the cloth turns to mud.It's a dark room, so it brightened before cooling. The cloth goes violet-blue; the brass keeps a little warmth.

Real runs: the same request, given to Bluehour on each photo. Its values and reasons, unedited.

Peyto Lake at blue hour Peyto Lake in warm golden-hour light Peyto Lake, quiet and cinematic like faded film Peyto Lake in soft pink alpenglow

Peyto Lake, at blue hour.

Camera
Sony α7 II, 28 mm, f/7.1, 1/40 s, ISO 320
Bluehour
Temperature −1500 K, Exposure −0.45, Highlights −35, Blacks −22, Shadows hue 222°

Ask, or do it yourself. Same sliders either way.

The colourist and your own hands work the same controls. Switch whenever you like: everything it did stays as steps you can switch off.

make it moody, with teal shadows

Three steps. Switch any one off.

Goðafoss, as edited

Your sliders

New to editing? Start in plain words.

Say what you want. Watch which slider moves. Learn what it does.

ASay it

BWatch it

CLearn it

Highlights are the brightest parts of the photo. Bringing them down gives a bright sky its colour back.

Your whole workflow. One browser tab.

From the card to the export: bring photos in, sort them, edit, ask, batch and export, all on your own computer.

Say it your way. A film, a stock, a genre.

    Any photo, any look. Real requests, real results.

    The same words work on every kind of picture. Each of these was one request, on the photo as it came out of the camera.

    Show it a photo. It finds the colours.

    Drop in any picture you love and ask it to match. It reads the colours and rebuilds them on your photo, with your sliders.

    Reference
    Your photoMatched

    One look, the whole trip. Fitted to every photo.

    Select a shoot and ask once. Bluehour sets the look on one photo, then adjusts it for each of the others' light.

    cool, moody blue hour

    One real batch: eight photos, 31 photons. The numbers are the exposure each photo ended up with.

    A ruined house below Loch Assynt in cool, misty dusk light

    Loch Assynt, from a RAW file.

    “make it feel like blue hour”, two steps, 10 photons.

    Camera
    Nikon D850, 70 mm, f/8, 1/320 s, ISO 400, NEF
    Bluehour
    Temperature −1500 K, Exposure −0.60, Contrast +20, Highlights −40, Shadows hue 225°, Vignette −25

    Under the hood. A real editor, on your computer.

    The editing engine runs in your browser, on your own machine. The colourist only ever sees a small preview.

    FIG 0.1
    On your computer

    The engine runs in your browser, on your own machine. Your originals are never uploaded.

    FIG 0.2
    Only a preview leaves

    When you ask, the colourist sees one 768-pixel preview of the photo, and doesn't keep it.

    FIG 0.3
    Every step, undoable

    Each move, yours or the colourist's, is its own step. Take back any one, in any order.

    10–15 ms
    per slider move on a laptop
    0.3–0.5 s
    to open a RAW file
    17
    panels, from tone curve and colour grading to masks and lens corrections
    RAW · HEIC · JPEG
    in, and JPEG, PNG, TIFF or WebP out
    768 px
    the only image the colourist sees, not kept after it answers
    0 bytes
    of your originals uploaded, ever
    Offline
    editing by hand works without a connection
    Every step
    undoable on its own, by you or the colourist

    Pricing. The sliders are free.

    Moving sliders yourself costs nothing, ever. The colourist is paid in photons, little suns, and only for what it does.

    a bit warmer

    1 photon a quick ask

    the sky is blown out

    3 photons a fix

    make it feel like 90s film

    10 photons a whole look

    Free

    $0

    30 photons a month, 50 more to start

    3 looks a month

    Plus

    $10/month

    500 photons a month

    50 looks, or 160 matched photos

    Pro

    $24/month

    1,500 photons a month

    150 looks, or 500 matched photos

    Studio

    $69/month

    4,000 photons a month

    400 looks, or 1,300 matched photos

    Each sun in a plan is one whole look; quick asks and fixes cost a fraction of one. Unused photons roll over for a month, and top-ups from $10 never expire.

    Bring a photo.

    Open the editor, drop in a picture, and ask for the light you remember.

    Open the editor