The Open Source World Is Being Rebuilt From the Global South

Every year, GitHub publishes its Octoverse report with a tidy narrative about which countries are "fastest-growing." Every year, the tech press summarises it and moves on. We did something different: we pulled the raw quarterly CSV from GitHub's Innovation Graph — their public, unmediated dataset of developer counts by economy from 2020 to 2025 — and ran the numbers ourselves.

What we found is sharper, stranger, and more consequential for business leaders than anything the headlines said.

The short version

Between 2020 and 2025, the global open source developer base on GitHub more than tripled. But that growth was not evenly distributed. A cluster of Global South economies — India, Brazil, Indonesia, Vietnam, Mexico — each grew 5× or more in five years. The established Western economies grew roughly 3×. And China, the world's second-largest economy, grew just 1.9×.

Every top-growth economy is in the Global South. Every slow-growth economy is either the established West — or China.

India: the inflection is visible, and we can date it

India's growth story is known. What is not known — because no one has published it from the raw data — is the exact quarter the trajectory changed.

We are not claiming causation from a single data point. But the timing is precise enough to warrant the question: did the arrival of LLM-assisted coding tools tip a wave that was already building? The Stack Overflow 2025 Developer Survey found Indian developers show 56% trust in AI tools — the highest of any country, versus a global average of 29%. GitHub's own data shows 80% of new Indian developers adopt Copilot within their first week.

India had the infrastructure (cheap data, smartphones), the supply (engineering graduates), and the cultural disposition. LLMs removed the final friction — English-language documentation, boilerplate, the overhead of first contribution. The wave was always coming. GenAI made it steeper.

There is one more number worth flagging. In 2020, Indian developers had 2.21 repositories per person versus 3.14 for US developers — a 42% gap. By Q4 2025, India is at 2.61 repos per developer. The US is at 2.44. India has not just caught up on quantity. It has overtaken the US on output per developer too.

China: the counterintuitive story

China was the world's second-largest GitHub developer base in 2020, with 5.9M developers to India's 4.2M. By early 2022, India had overtaken it. By end of 2025, India is more than twice China's size. China grew 1.9× in five years — every other major economy grew 3× or more.

This is not a story about Chinese developers losing interest in software. What appears to be happening is structural: the Great Firewall creates friction with GitHub; domestic platforms like Gitee absorb a large portion of Chinese developer activity that never appears in this dataset. China's GitHub presence is a floor, not a ceiling. For business leaders assessing global developer talent, China's GitHub numbers are a significant undercount — the talent is there, the signal is just on different infrastructure.

Brazil: the story nobody is writing

Of all the numbers in this dataset, Brazil surprised us most. Brazil grew from 1.4M to 7.7M GitHub developers in five years — a 5.5× multiple, almost identical to India's 5.9×. It is now the world's fourth-largest open source developer base, at 32.6% year-on-year growth.

There is almost no coverage of this in the English-language tech press. A country of 215 million people, with a mature tech sector anchored in São Paulo and a young demographic skew, is quietly becoming one of the most significant open source contributor bases on the planet.

The battle for #5 — and the Indonesia question

The #5 spot in the global rankings is about to change hands. United Kingdom (5.2M), Japan (5.0M), and Indonesia (4.9M) are within 300K of each other — they were separated by over 500K just two years ago. Both Japan and Indonesia will likely overtake the UK within two quarters.

Indonesia's trajectory is the one to watch. It grew 5.6× in five years — second only to India in growth multiple. A country of 270 million people, not historically associated with software exports, is approaching parity with the United Kingdom's entire GitHub presence. The UK has been in the global top five since GitHub was founded. Indonesia was not even in the conversation five years ago.

Activity, not just headcount: what the push data shows

Developer registrations tell you who signed up. Git pushes tell you who is actually building. We ran the same analysis on GitHub's ig_pushes dataset — every push event by country, same 24-quarter window. The picture gets sharper.

Two countries stand out: India and Indonesia are the only ones where pushes per developer went up over five years. Everyone else — the US, UK, Germany, Japan — added developer accounts faster than they added actual activity. India and Indonesia are not just showing up; they are individually more productive on the platform than they were in 2020.

The post-GenAI window (Q4 2022 → Q4 2025) tightens the story further. In the twelve quarters since ChatGPT launched, India added 2.4× its push volume — slightly ahead of its 2.3× developer growth in the same period. Indonesia: 2.6× pushes, 2.1× developers. The gap is widening.

What it means if you run a tech business

Hiring pipelines will look different within three years

India is the world's largest and fastest-growing source of developers who are already comfortable with AI-assisted workflows. Brazil is catching up on a similar trajectory and remains largely undiscovered by non-Latin-American employers. The arbitrage window on both markets is real but narrowing.

Open source dependency maps are shifting

The projects, libraries, and frameworks that gain traction in the next five years will increasingly reflect the priorities of Indian, Brazilian, and Indonesian developers — mobile-first, multilingual, lower-bandwidth assumptions, different API preferences. If your product depends on open source components, watch what is gaining stars in São Paulo and Bangalore, not just San Francisco.

China's GitHub data is not China's developer reality

If you are using GitHub contributor counts to benchmark Chinese technical talent or assess the health of China's AI developer ecosystem, you are measuring the visible fraction of a much larger number. The domestic platforms carry the signal that matters.