Professional Photo Colour Grading in Your Browser

Colour grading is the craft of transforming the emotional tone of a photograph through precise manipulation of its colour palette, tonal range, and contrast. Traditionally the domain of professional colourists using expensive software like DaVinci Resolve or Adobe Lightroom, this tool brings the same quality of grading directly into your web browser — for free, with zero cloud uploads and instant results.

Cinematic Film Looks

Our cinematic presets emulate the colour science of professional motion picture grading pipelines:

• Teal & Orange: The defining aesthetic of modern blockbuster cinema. Shadow tones shift toward cool teal while midtones and highlights are pushed into warm amber — creating maximum complementary contrast between environments and human skin.
• Matte Fade: Lifts the black point to simulate the faded, milky look of exposed film stock. Combined with slightly desaturated midtones, it gives photographs the quality of an analogue print from the 1970s.
• Cold Steel: Heavy desaturation with a strong blue-shift in shadows produces the cold, de-glamorised aesthetic of European arthouse films and crime thrillers.
• Golden Hour: Warm amber temperature, boosted highlights, and a gentle vignette recreate the magic-hour light that cinematographers chase at dusk.

Vintage Film Emulation

Each vintage preset is modelled on the specific spectral response and characteristic curve of a real film stock:

• Kodachrome: Elevated reds and yellows with punchy contrast and warm grain — the iconic look of 1960s–80s holiday photography.
• Fuji 400H: Lifted shadows with a cool, airy green-cyan shift in midtones — the favourite of natural-light wedding and portrait photographers.
• Lomo: Extreme vignetting, heavy saturation, and pushed contrast recreate the unpredictable, energetic results of Lomography film cameras.
• Cross Process: Simulates the chemical effect of developing slide film in negative chemistry — creating surreal colour shifts with unnatural greens and purples.

Manual Colour Adjustment Controls

Beyond presets, the full adjustment panel gives you precise control over every parameter of the image's colour science:

• Brightness & Contrast: Foundational tonal controls applied directly to pixel luminance values.
• Saturation: Scales colour intensity uniformly, from monochromatic (−100) to hyper-vivid (+100).
• Temperature: Shifts the white balance from cool blue to warm amber to match different lighting conditions or creative intent.
• Tint: Adds a green or magenta cast — essential for correcting fluorescent lighting or adding a stylistic colour cast.
• Fade: Lifts shadows and midtones toward a warm grey, simulating the look of lifted blacks on professional colour-graded footage.
• Grain: Adds a randomised monochromatic noise overlay blended in overlay mode — producing authentic analogue film grain texture.
• Vignette: Applies a radial gradient darkening from centre to edge, drawing the eye toward the subject and adding a classic photographic frame.
• Sharpness: Applies an unsharp-mask algorithm — blending the original image with a blurred version to enhance edge contrast and perceived detail.

Privacy-First Architecture

Unlike cloud-based photo editing services, every operation in this tool occurs locally inside your browser's JavaScript runtime. The Canvas 2D API reads your image pixels into memory, our colour science algorithms transform each pixel's RGB values, and the result is rendered back to screen — entirely without any network request. Your photographs never leave your device.