A large open community where software developers publish tutorials, post-mortems and career posts. Good for practical write-ups on tools and frameworks, and for publishing your own work in public where hiring managers can find it.
Why I recommend it: Free to read and free to post, no subscription. Quality varies a lot because anyone can publish, so check dates and test code before relying on it.
A charity running free software development and basic online skills courses, with mentoring and job support, for people facing barriers to work including refugees and people on low incomes.
From the site: Exceptional free tech training and support to get a job
Why I recommend it: Completely free for learners — funded by donations and volunteers, not tuition. Places are limited and there is an application and commitment expectation, so apply when you can give the course your time.
Autonomous coding agent that reverse-engineers large codebases and ships new features. The Sandbox lets you try it free on up to 1M lines of existing code and 25K lines of new features, with no credit card required.
From the site: Try Blitzy Sandbox free: reverse-engineer up to 1M lines of code and ship 25K lines of new features, no cost. Bring your own repo or start with a sample.
Coursera catalog of software development courses and certificates, many auditable at no cost.
Why I recommend it: Use audit mode to learn free and only pay if you need the certificate. Pick one track and finish it — a completed project beats five half-done courses.
