Go Formatter
Format Go code instantly in your browser. Fix indentation with tabs, enforce brace-on-same-line style, and align var block declarations — no server required.
How to Use Go Formatter
How to Use the Go Formatter
Step 1: Paste Your Go Code
Paste or type your Go code into the input field on the left.
Step 2: Choose Tab Display Width
Select how wide a tab character appears in the output preview:
- 4 spaces — Common editor default
- 8 spaces — The Go specification default
Note: the output always uses actual tab characters (\t), matching gofmt. This option only affects how they are displayed.
Step 3: Copy the Result
The formatted output appears instantly on the right. Click Copy Formatted to copy it to your clipboard.
What Gets Formatted
- Tab indentation — All indentation is replaced with tab characters, with level tracked by
{and}braces - Brace on same line — Standalone
{on its own line is merged onto the end of the preceding line (Go language requirement) - case / default alignment — Labels in
switchblocks are printed at the switch body level, matchinggofmtoutput - var block alignment —
name = valuedeclarations insidevar (...)blocks are aligned by padding identifier names
Tips
- Use the example buttons to test with real Go snippets
- The formatter handles common patterns; for production code use
gofmtorgoimportsdirectly - The output uses real tabs, so it integrates cleanly with Go tooling
Frequently Asked Questions
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