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.

open source software which you can use to easily create a beautiful website, blog, or app.

stack overflow is the largest, most trusted online community for developers to learn, share​ ​their programming ​knowledge, and build their careers.

faster, safer and smarter than default browsers. fully-featured for privacy, security, and so much more. get the faster, better opera browser for free.

ilovepdf is an online service to work with pdf files completely free and easy to use. merge pdf, split pdf, compress pdf, office to pdf, pdf to jpg and more!

adblock is one of the most popular ad blockers worldwide with more than 60 million users on chrome, safari, firefox, edge as well as android. use adblock to block all ads and pop ups. adblock can also be used to help protect your privacy by blocking trackers. adblock blocks ads on facebook, youtube, and all other websites. download it for free now!

well organized and easy to understand web building tutorials with lots of examples of how to use html, css, javascript, sql, python, php, bootstrap, java, xml and more.

sourceforge provides free & fast open source software downloads and development, and business software reviews and comparisons featuring the largest open source and business software directory.

make the impossible, possible with trello. the ultimate teamwork project management tool. start up a board in seconds, automate tedious tasks, and collaborate anywhere, even on mobile.