Photo Color Studio — professional photo color grading, 100% offline. Transform any photo with a full suite of color tools used by professional editors. Real-time preview, live RGB histogram, 8 built-in presets, and per-slider precision controls — everything runs instantly on your device. No cloud, no sign-in, no watermarks. ★ 8 BUILT-IN PRESETS Cinema, Vintage, B&W Film, Warm Sunset, Cool Blue, Faded, High Contrast, Vivid — one click to a professional look. Or build your own from scratch. ★ SEVEN FINE-TUNING SLIDERS Brightness, Contrast, Saturation, Hue rotation, Gamma, White Balance (warm/cool), and Vignette — each with an editable value input for exact numbers and an individual reset button. ★ ONE-CLICK LOOKS Grayscale, Sepia, Invert (negative), and Auto-Levels — instant adjustments that fix dark or flat photos in one tap. ★ LEVELS Black point, white point, and gamma — precision tonal range control like Photoshop. ★ COLORIZE Tint your photo toward any RGB color with adjustable intensity. Create duotone, cross-process, or vintage color washes. ★ COLOR BALANCE Photoshop-style shadow/midtone/highlight control with three axes each: Cyan↔Red, Magenta↔Green, Yellow↔Blue. 9 independent sliders for surgical color correction. ★ SELECTIVE COLOR Target a specific hue range and adjust individual color channels within it. Perfect for changing the color of a single object without affecting the rest. ★ COLOR REPLACE Pick a source color, pick a target color, set tolerance — watch it swap. Change clothing, recolor backgrounds, fix mismatched elements. ★ LIVE RGB HISTOGRAM See the tonal distribution of your image update in real-time as you adjust. Spot clipping, check exposure, verify color balance at a glance. ★ BEFORE / AFTER One-click toggle to compare your edits with the original. See exactly what changed. ★ UNDO (30 LEVELS) Every adjustment is tracked. Step back through your edit history anytime. ★ ZOOM & PAN Zoom in 0.5x to 5x to inspect details. Pan around large images with ease. ★ TYPE EXACT VALUES Every slider has an editable text input — type "42" instead of dragging. Per-slider reset buttons bring any control back to default without resetting everything. ★ PRIVATE BY DESIGN Pure C color engine (ImageMagick-grade algorithms). Photos never leave your device. No telemetry, no cloud processing. ★ PNG, JPEG, BMP Open any common photo format. Save as PNG or JPEG. Alpha transparency preserved.