Format nginx.conf blocks
Splits server, location, and upstream blocks onto separate lines and indents them by depth. Directives end at semicolons. Runs locally.
server
{
listen 80;
server_name example.com;
location /
{
proxy_pass http://localhost:3000;
}
}
How to format nginx.conf
Tokenises the file on {, } and ;, then re-emits each token at the right indent depth.
- 01
Paste your config
A minified one-liner, a full nginx.conf, or just a server { ... } excerpt.
Parsing runs through Prettier’s standalone bundle (or the language-specific equivalent) loaded lazily — no parser ships until the tool is opened.
nginxPrettierASTstandalonelazyinput · sourceraw · ASTserver{listen 80;}loaded · parsedAST · ready - 02
Set indent width
4 spaces is the nginx documentation default. 2 is also common for tight configs.
Indent width, tab style, and print-width re-format through a memoised pass — switching
2 → 4spaces never re-parses, only re-prints.optionsindentprint-widthmemoisedliveopts · optionsindent · liveindent=4
options applied · livelive - 03
Watch blocks align
Each directive ends on its own line at semicolons. Nested location { ... } blocks indent one level deeper.
The formatter is deterministic and idempotent: running it twice produces byte-identical output, which keeps diffs and git noise to a minimum.
liveidempotentdeterministicdiff-cleanstableout · formattedindented · readyserver { listen 80; }formatted · liveidempotent - 04
Copy or download
Save as nginx.conf or copy to clipboard. Source stays in your browser.
Download writes a
Blobwith the language-appropriate extension; copy usesnavigator.clipboard.writeTextso the output preserves all whitespace exactly.exportclipboardbloblanguage MIMEclient-sideok · copiedready · doneOK Copied
shipped · ready to shipsuccess
Formatting tips that keep diffs sane
Pick one config and pin it
Inconsistent formatting causes diff churn. Commit .prettierrc / .editorconfig and enforce in CI.
Format on save
Editor integration is faster feedback than a pre-commit hook. Use both for belt-and-braces.
Idempotency matters
Running the formatter twice should produce identical output. Test this on a representative file.
Match the language community
Default to community conventions: 2 spaces for JS/CSS, 4 for Python, tabs for Go. Fights over indent are a productivity tax.
Print-width drives wrapping
80, 100, and 120 are the common targets. Wider lines parse fast but review slower side-by-side.
Don’t mix formatters and linters
Prettier handles whitespace; ESLint handles correctness. Disable overlapping rules to avoid fight-club configs.
When to format nginx.conf
Production rollouts, config reviews, docs examples.
Production rollouts
Tidy a config before nginx -t and reload. Idempotent: running the formatter twice produces byte-identical output, which is the foundation of a clean CI gate. Pair with a pre-commit hook so PRs arrive already formatted, focusing review on logic.
idempotentConfig reviews
Normalise whitespace so diffs show real intent. Pairs with EditorConfig + .prettierrc for end-to-end consistency. Whitespace-only changes vanish so reviewers see real diffs, and git blame stays honest about who wrote what.
CI-readySnippet sharing
Format an excerpt before pasting in a ticket. Output respects your indent width, tab style, and print-width — settings carry over for repeat runs. Switching 2-space to 4-space costs nothing in CPU but standardises an entire codebase.
diff-cleanDocker images
Re-indent a packed nginx.conf baked into a layer. Format-on-save is the fastest feedback loop; CI is the safety net. Together they make inconsistent indentation a thing of the past and free up review cycles for genuine concerns.
PR-friendlyQuick fix
Reformat a one-liner from a tutorial. Whitespace-only changes don't trigger downstream content-hash invalidations, so CDN cache keys and CI cache layers stay warm. Real changes get all the rebuild budget.
review-readyDocs examples
Standardise nginx examples for runbooks. Pairs with linters (ESLint, Stylelint, pylint) that catch what formatting alone can't — bugs, unused imports, dead code. Each tool stays in its lane, and the codebase stays clean.
deterministicFrequently asked questions
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