GIMP Photo Editing: Free Photo Editor, Photoshop Alternative

Explore the four layer types in gimp—background, group, pixel, and text—and four customization tools: layer styles, masks, blending modes, and opacity, with non-destructive tips.

Explore GIMP layer attributes to organize and control edits: lock layers, link and group layers, create new layers with attributes, and manage visibility, merging, and the layer boundary.

Explore how adjustment layers in GIMP control edits non-destructively, using duplicate layers, levels adjustments for exposure, and opacity to blend edits while preserving the original image.

Discover how to edit raw files with Darktable, a free Lightroom‑like editor that organizes images with labels, stars, and keywords, and edits non-destructively in the darkroom.

Import your photos in the light table module using add to library, copy and import, or tethered shooting. Manage folders, thumbnails, selective import, and naming rules during import.

Edit a photo in dark table using the histogram and exposure to brighten, fix clipping, then adjust white balance, contrast, noise, and color with graduated density for sky and water.

Export images from Darktable by selecting formats and JPEG quality, setting dimensions and dpi for online or print, applying color profiles and metadata, and saving export presets.

Learn pro tips for the levels tool: analyze the histogram, set white and black points, and expand dynamic range. Manage clipping with luminance-only preview and understand when to adjust midtones.

Explore the tone curve tool to adjust white and black points, create an s-curve for contrast, and fine‑tune exposure and midtones, while considering raw versus JPEG quality.

Learn the dodge and burn technique to control brightness across an image, using shadows, midtones, and highlights to add depth, fix vignetting, and avoid the halo effect.

Master the foreground select tool in Gimp to isolate the subject from the background, adjust feather edges, refine with quick mask, and add alpha channel for non-destructive transparency.

Master non-destructive editing with layer masks in GIMP, hiding and revealing pixels to refine selections. Paint with black or white and invert selections for precision.

Decide when to sharpen and how much, using Dark Table's high pass sharpening tools, while applying layer masks and threshold for non-destructive edits tailored to online or print use.

Replace skies non-destructively in GIMP by duplicating the layer, selecting the sky with fuzzy select and quick mask, then match light direction, color, and atmospheric conditions.

Learn to create a classic matte effect in GIMP by adjusting the black point and contrast with levels or curves, targeting blacks and shadows for a muted, retro finish.

Create a retro effect in GIMP by non-destructively editing with duplicate layers, dust textures, color fades, and grain, using blending modes such as soft light and screen to blend elements.

Learn to create an hdr image by merging two exposures, using layer masks, curves, dodging and burning, and sharpening to minimize ghosting.

Master cutting out hair in GIMP by using a solid color layer, duplicating the image, and applying levels and a layer mask to isolate the subject and remove the background.

Learn to change clothing colors in GIMP using multiple methods, including hue-saturation, colorize, and layer blending, while mastering precise selections with the foreground select tool and quick mask tool.

Learn to change eye color in GIMP by selecting the eyes with quick mask, duplicating layers, brightening with curves, and colorizing with colorize, hue-saturation, and careful masking and blending.

Fix an overexposed image in GIMP using curves, dodging and burning, and adjustments to highlights, shadows, and color; compare RAW vs JPEG rendering in Darktable and Lightroom.

Learn to whiten teeth in GIMP by duplicating the layer, selecting the teeth with a selection tool, applying a layer mask, and boosting hue/saturation to desaturate for a natural-looking result.

Create and customize vignettes in GIMP, including heart-shaped and circular shapes, with adjustable feathering, brightness, saturation, and tone-curve adjustments for controlled highlights and shadows.

Learn to create a double exposure in GIMP by blending two main images, then refine with sky removal, dodging and burning, and color grading.

Learn to transform a day photo to night, create a magical glow on the deer and antlers using colorize, masks, blur, highlights, and stars.

Learn to create a majestic animal composite in GIMP by integrating a giraffe with clouds and mountains, using selections, masks, reflections, drop shadows, and color grading for depth and harmony.

Explore the fundamentals of color in photography, including how light, cameras, and monitors perceive color, color spaces, monitor calibration, and practical tips for accurate color correction in editing and printing.

Explore the color of light, natural and artificial sources, and use Kelvin temperature to capture accurate color in camera. Learn how RGB channels and differences impact on-screen and print color.

Master color management to achieve consistent colors across devices. Learn how SGB and Adobe GB color workspaces affect display accuracy and why aligning them matters.

Calibrate your monitor as part of color management workflow to display colors, brightness, and contrast accurately, using a Y-shaped spider to build a profile and prevent color casts in prints.

Master color management by controlling your editing environment to prevent color casts, calibrate your monitor, and account for ambient tungsten and external light that affect color.

Complete this photo editing course and gain confidence editing your photos with a free editor as a Photoshop and Lightroom alternative, avoiding costly subscriptions.