nanoGo — Go in the browser

⚙️ Options

Loading WebAssembly...

IDE workspace 1 file · main.go

🎨 Canvas Output Visual

📋 Console Output Text

Welcome to nanoGo! Select an example from the sidebar to get started! 🚀

🌐 Template Output HTML

HTML template outputs will appear here when running template demos.

🧭 Go Execution Lab Mermaid

Not running

Analyze the current code to build its Mermaid call graph.

✨ nanoGo AI Local config

Connection & privacy

Endpoint Model API key

Include the current code and execution-graph summary

nanoGo sends nothing until you ask. This browser calls the configured OpenAI-compatible endpoint directly; normal CORS rules apply.

Ask for an explanation, a test, a refactor, or a focused patch. Code blocks can be applied to the editor after review.

🔎 Symbol details Editor

Inspect code in place

Click a variable or function in the editor. Functions show callers and callees; variables show the last value observed during a run.

🔬 Execution Inspector Details

–total time

–interp time

–steps

–steps/ms

📁 SDK / Workspace

Multi-file VFS, go.mod and package graph

The active file runs directly. Add a second .go file to enable module-aware execution.

🌳 AST

Click a node to jump to its source line.

📞 Functions

Who calls whom — click a function, a call, or a caller to jump to it.

📊 Benchmark

Iterations Runs the whole program N× on a fresh interpreter; output is suppressed.

🧭 Trace

Record trace on next run Calls, goroutines, capability checks — timeline of the last traced run.

🔥 Heatmap

Record line heatmap (Run & Benchmark) Darker = executed more often. Benchmark accumulates hits across all its iterations.