gimp - the gnu image manipulation program: the free and open source image editor

русскоязычный сайт графического редактора paint.net — бесплатная загрузка, наиболее полная и обновленная документация, справка, уроки, новости.

inkscape is professional quality vector graphics software which runs on linux, mac os x and windows desktop computers.

irfanview ... one of the most popular viewers worldwide.

high-performing software products to speed up computer, fix & clean registry and malware, optimize pc games, tune up windows 10, windows 8, windows 7, vista, xp, etc.

github is where over 100 million developers shape the future of software, together. contribute to the open source community, manage your git repositories, review code like a pro, track bugs and features, power your ci/cd and devops workflows, and secure code before you commit it.

xnview, one of the best and popular image viewer