Seashore is an open‑source macOS image editor that offers basic Photoshop‑style tools such as layers, gradients, and filters. If you’re looking for other free image‑editing programs—whether desktop‑based or web‑based—here are 20 alternatives you can try.
Get targeted exposure with custom position pinning and highlighted placement.
Feature‑rich open‑source raster editor with layers, masks, filters, and a huge plug‑in ecosystem.
Professional digital painting and illustration suite with advanced brush engines, layer management, and HDR support.
Lightweight Windows editor offering layers, effects, and a simple UI; extensible via community plug‑ins.
Open‑source vector graphics editor that also handles raster images via extensions; great for mixed‑media projects.
Web‑based Photoshop‑compatible editor that runs entirely in the browser; supports PSD, XCF, and Sketch files.
User‑friendly online editor for quick edits, filters, and overlays; ideal for beginners.
Advanced online editor with layer support, blend modes, and a wide range of adjustment tools.
Simple, open‑source drawing and image‑editing program inspired by Paint.NET; works on Windows, macOS, and Linux.
Focused on digital painting with a distraction‑free canvas and a massive brush library.
Open‑source photography workflow application for raw development and non‑destructive editing.
Powerful cross‑platform raw processor offering advanced color correction, noise reduction, and batch editing.
Free, non‑destructive photo editor with zone‑based editing and a clean, intuitive UI.
All‑in‑one photo editor with collage, batch editing, GIF creation, and basic retouch tools.
Web‑based design platform offering simple image editing, templates, and drag‑and‑drop tools.
Online editor with one‑click enhancements, HDR effects, and collage maker; free tier includes core features.
Free cross‑platform editor with AI‑driven filters, advanced color tools, and batch processing.
Vector‑based design app that also supports bitmap import and basic raster adjustments.
Free, web‑based vector editor that can be used for simple image composition and export to PNG/JPEG.
Lightweight Windows editor offering filters, layers, and batch processing; free version provides essential tools.
A GIMP fork that mimics the classic Photoshop UI, making the transition easier for Photoshop users.