Photo editor with HSL

This tool provides non-destructive HSL-based color editing for raster images. It solves the need to adjust hue, saturation, and lightness quickly and consistently for photographers, designers, and marketers who require brand-consistent imagery.
Conceptually, it processes each pixel: convert RGB to HSL, apply user-specified hue shift, saturate or desaturate, and add a lightness offset. It clamps values to valid ranges and re-converts to RGB, preserving the alpha channel and embedded color profile when possible. This enables predictable results across images.
Key features include an explicit three-parameter adjustment model (hue_deg, sat_pct, lit_pct), optional luminance preservation, and an option to apply changes in batch. The outputs include the edited image alongside metadata recording the applied parameters.
Typical use cases include quick brand color corrections, mood adjustments for social media assets, and preparing image sets for campaigns. The tool differentiates itself by focusing on HSL color space operations with robust per-pixel handling and optional advanced controls that avoid overcorrection.