Learn TINYGO-WASM with Real Code Examples
Updated Nov 25, 2025
Installation Setup
Install TinyGo via installer or package manager
Install Go (used for dependencies)
Install wasm-opt (optional for aggressive optimization)
Configure TinyGo for browser or WASI target
Compile Go code to Wasm using `tinygo build -target=wasm`
Environment Setup
Install TinyGo
Install Go (for modules)
Install wasm-opt (optional)
Choose browser/wasi target
Compile and test Wasm output
Config Files
go.mod / go.sum - Go module metadata
tinygo.env - optional config
build scripts - targets for wasm/wasi
index.js - JS binding logic
wasm/ - compiled output directory
Cli Commands
tinygo version -> check version
tinygo build -target=wasm -> compile to browser Wasm
tinygo build -target=wasi -> compile WASI module
tinygo flash -> flash embedded device
tinygo list-targets -> show all supported Wasm/IoT targets
Internationalization
UTF-8 supported
Localization performed in JS or host runtime
WASI supports locale options
TinyGo Wasm can process multilingual strings
Modular design for multi-region apps
Accessibility
Handled by JS/UI layer
TinyGo Wasm performs logic and backend work
Can emit accessibility-related events
WASI apps follow normal CLI accessibility
Structured outputs help readability
Ui Styling
N/A inside Wasm itself
Styling done entirely in JavaScript/HTML/CSS
TinyGo Wasm can generate events for UI
DOM controlled via syscall/js
Separation of logic (Wasm) and UI (browser)
State Management
State stored in Wasm linear memory
JS passes data via pointers or typed arrays
No global OS-level state
Goroutine simulation via async coroutine model
State persistence via host APIs (file, DB, storage)
Data Management
Use Wasm memory for byte-level operations
JSON handled via JS side
WASI provides stdin/stdout/files
Binary formats preferred for performance
Safe memory access enforced by Wasm sandbox