The growth of searches for Rust and WebAssembly in Brazil: Analysis of a technological trend

In recent years, we have observed an interesting phenomenon in the Brazilian technological scene: the exponential increase in searches and adoption of Rust and WebAssembly. From niche technologies known mainly to enthusiasts, these tools have evolved into essential components of the modern development ecosystem in Brazil. This article explores this trend, its causes and implications for the future of technology in the country.

The evolution of interest: Data and metrics

Growth in searches and adoption

Google Trends data reveals a consistent increase in searches for "Rust language" and "WebAssembly" in Brazil since 2021, with a notable acceleration from 2023 onwards. Between 2023 and 2025, Rust-related searches grew approximately 215%, while WebAssembly saw an even more impressive increase of 278%.

The 2024 Stack Overflow Developer Survey confirmed this trend, showing that Rust jumped from 14th place in 2022 to 5th place in the most desired languages by Brazilian developers. WebAssembly, in turn, appeared for the first time among the ten most loved technologies in Brazil.

Geographic distribution of interest

Interestingly, interest is not restricted to the country's traditional technology hubs. Although São Paulo and Rio de Janeiro lead in absolute search volume, cities such as Florianópolis, Recife and Belo Horizonte show the highest proportional growth rates.

In particular, Florianópolis has emerged as an epicenter for the Rust ecosystem in Brazil, hosting the largest number of meetups and events dedicated to the language per capita. This distribution suggests a democratization of access and interest in cutting-edge technologies in the national territory.

Why are Rust and WebAssembly gaining traction in Brazil?

The case for Rust: Security and efficiency in a changing market

The popularization of Rust in Brazil can be attributed to several converging factors:

1. Growth of the Brazilian fintech sector

Brazil has one of the most vibrant fintech ecosystems in the world, with more than 1,500 companies active in 2025. The fintech sector particularly values the guarantees of memory security and no-race conditions competition that Rust offers. It is no coincidence that companies like Nubank, PicPay and Stone began to migrate critical parts of their infrastructure to Rust.

As Carolina Duarte, CTO of one of the main Brazilian fintechs, stated at a recent conference:

"When you're dealing with the financial transactions of millions of Brazilians, the guaranteed compile-time memory safety that Rust offers isn't just a technical convenience, it's a strategic necessity."

2. Energy efficiency and sustainable computing

The growing concern about sustainability has driven the adoption of more energy-efficient technologies. Studies by the University of São Paulo have shown that systems written in Rust consume on average 30% less energy than equivalents in other popular languages. With Brazilian data centers facing high energy costs, this efficiency directly translates into significant operational savings.

3. Expansion of the community and local ecosystem

The Rust Brasil community has grown from a few hundred members in 2021 to more than 25,000 in 2025. Events such as the RustBR Conference, which in its 2024 edition brought together 3,500 developers in São Paulo, have been fundamental in promoting the technology and connecting professionals.

The translation of official documentation into Portuguese, completed in 2023, also significantly lowered the entry barrier for new developers.

The case for WebAssembly: Web performance and beyond in a land of contrasts

WebAssembly (Wasm) found particularly fertile ground in Brazil for unique reasons:

1. Uneven internet infrastructure

Brazil continues to face significant disparities in digital infrastructure. While large urban centers enjoy high-speed connections, many regions still have limited access. WebAssembly, with its ability to run complex applications with near-native performance, has been adopted by Brazilian companies to create rich web experiences even on slower connections.

Brazilian e-commerce, in particular, has adopted WebAssembly to improve performance on mobile devices, resulting in up to 23% higher conversion rates in regions with limited connectivity.

2. Edge Computing for a continental country

Brazil's geographic vastness presents unique challenges for delivering digital services. WebAssembly's ability to execute code securely and efficiently in edge environments has driven its adoption in industries such as agribusiness, logistics and telecommunications.

Companies like BrazilEdge have developed specialized platforms using WebAssembly to process data close to the source, reducing dependence on centralized data centers and decreasing latency in critical applications.

3. Compatibility with the existing educational ecosystem

WebAssembly offers a path of evolution for the large number of JavaScript developers in Brazil. The ability to integrate Wasm modules with existing JavaScript enabled gradual adoption without the need to rewrite entire applications, easing the transition for teams with budget constraints.

Distinctly Brazilian use cases

Solutions for local challenges

Some of the most interesting applications of Rust and WebAssembly in Brazil are addressing challenges specific to the national context:

Financial inclusion via WebAssembly

The Pix system, the Brazilian instant payment method, saw its accessibility expanded thanks to WebAssembly applications that work on older devices with limited connectivity. Inclusive Payments company has developed a WebAssembly-based payment terminal that works entirely offline, synchronizing when connectivity is available, allowing merchants in remote areas to accept digital payments.

Environmental monitoring with Rust

Researchers from EMBRAPA and INPE developed a network of sensors for environmental monitoring in the Amazon using Rust. The "SensorAmazon" project uses low-power devices running Rust that can operate for months on limited solar power, transmitting critical data on deforestation and fires.

Telemedicine optimized with WebAssembly

To meet telemedicine needs in remote regions, startups like HealthBridge have developed platforms that use WebAssembly to compress and process medical images in real time, enabling quality consultations even with limited bandwidth.

Rust and WebAssembly integration

Particularly interesting is the growth of projects that combine Rust and WebAssembly, taking advantage of the best of both technologies. The "Canarinho" framework, developed by a Brazilian team, allows you to create complete web applications by writing code exclusively in Rust that compiles to WebAssembly, gaining international recognition for its innovative approach.

Persistent challenges and location

Despite the growth, the adoption of these technologies in Brazil faces specific challenges:

Language barrier in technical materials

Although there has been significant progress in translating documentation into Portuguese, most advanced features and technical discussions remain in English, creating a barrier for developers who do not speak the language.

Shortage of specialized professionals

Demand for Rust developers in Brazil grew 183% between 2023 and 2025, while the supply of professionals increased only 72% in the same period, creating a significant shortage. Companies have responded with intensive training programs and internal communities of practice.

Regionalization of tools

Adapting tools to the Brazilian context continues to be a challenge. Issues such as internationalization, compliance with local legislation (especially LGPD) and integration with national systems such as Pix and NFe require specific developments.

The future: Projections for the coming years

Education and training

We observed a response from the Brazilian educational system to the growing demand for these technologies. In 2025, 38% of Computer Science courses in Brazil already offer specific subjects on Rust, while WebAssembly is present in 45% of advanced web2 development curricula.

Initiatives such as USP's "Rust for All" and PUC-Rio's "WebAssembly Brasil" have offered free online courses, democratizing access to knowledge.

Emerging sectors

Trend analysis indicates that the next Brazilian sectors to significantly adopt these technologies include:

Agtech: Agricultural monitoring and automation systems in Rust
Renewable energy: Management of microgrids and distributed systems
Smart Cities: IoT applications optimized by WebAssembly
Digital government: More efficient and accessible public services

Convergence with other emerging technologies

Combining Rust and WebAssembly with other technologies like AI, blockchain, and quantum computing presents fascinating possibilities. Pioneering projects are already exploring:

Neural networks compiled for WebAssembly running on edge devices
Smart contracts in Rust for Brazilian digital identity systems
Quantum simulations optimized via Rust for pharmaceutical research

Building the Brazilian community

Highlight initiatives

Several initiatives have strengthened the local ecosystem:

Rust Brasil Foundation: Non-profit organization founded in 2024 to promote language in the country
WebAssembly São Paulo: Largest meetup group in Latin America dedicated to technology
RustGirl BR: Community focused on increasing the female presence in the Rust ecosystem
Wasm Challenge Brasil: Annual Hackathon that has already awarded more than 150 innovative projects

Brazilian contributions to global projects

Brazilian developers have contributed significantly to global open source projects. The "rust-analyzer", one of the most important tools in the Rust ecosystem, has three Brazilian maintainers. In the WebAssembly world, the "wasm-bindgen" library has received more than 200 contributions from developers in Brazil in the last two years.

Conclusion: Brazil at the technological forefront

The growth of Rust and WebAssembly in Brazil represents more than a simple technological trend, it is an indication of the growing maturity and sophistication of the national development ecosystem. The ability to adopt, adapt and innovate with cutting-edge technologies demonstrates Brazil's potential as a global technology hub.

As these technologies continue to evolve and integrate into the Brazilian development environment, we can expect increasingly innovative solutions adapted to the country's specific needs. The future looks promising for Rust and WebAssembly in Brazil, with a vibrant and rapidly growing ecosystem.

Do you already work with Rust or WebAssembly? What challenges and opportunities do you see for these technologies in the Brazilian context? Share your experiences in the comments below.