1. Adobe Photoshop Express – Official online version for Photoshop. Available also for mobile devices.
  2. Pixelmator – Richly featured editor for OS X.
  3. Paint.net – Free alternative to Photoshop for Windows operating systems only.
  4. Inkscape – Inkscape is a free and open-source vector graphics editor.
  5. GIMP – The GNU Image Manipulation Program is a well known alternative to Adobe’s software.
  6. Pixia – Originated from Japan, but it has English translation. Developed by the community.
  7. Xara Xtreme – General purpose graphics editor for Linux systems.
  8. Photoplus – Free photo editing software for Windows only.
  9. Adobe Photoshop Lightroom – Available for multiple devices this free software is especially designed for photographers.
  10. Krita – Available for the most popular operating systems. Perfect for concept
    artists, digital painters, and illustrators.
  11. Pixlr – Most popular image manipulation software.
  12. Sumo Paint – Sumo Paint is an online image editor, without need to install anything to your device.