Does this restore comments removed by minification?

No, removed comments cannot be recovered.

Is this good for quick debugging?

Yes, it is designed for readability-first inspection.

Does this tool process data client-side?

Most PlainUtils tools process inputs directly in your browser unless a page explicitly says otherwise.

Developer Utility

CSS Unminifier

Expand minified CSS into readable rules and declarations.

Language: CSSUtility: UnminifyUtility: Format

Minified CSS

.card{display:flex;gap:12px;padding:16px;border:1px solid #ddd}.card h2{font-size:18px;margin:0}

Readable CSS

.card{
  display:flex;
  gap:12px;
  padding:16px;
  border:1pxsolid#ddd
}
.cardh2{
  font-size:18px;
  margin:0
}

Related HTTP References

Regex Examples

What This Tool Does

Expand minified CSS into readable selectors and declarations for faster inspection.

This page is designed for practical development workflows where speed matters. You can paste sample input, review output immediately, and copy results into your code, tests, API requests, or documentation without context switching to desktop apps. Keeping this workflow in-browser makes it easier to verify assumptions quickly during debugging, feature development, and release validation.

CSS Unminifier also links to nearby references and examples so you can move from raw transformation to implementation decisions. That includes related HTTP behaviors, regex patterns, and sibling utilities that commonly appear in the same task chain. The goal is not only output generation, but also reducing troubleshooting time when integration details fail at the boundaries between services.

Common Use Cases

Review minified stylesheet snippets in bug tickets.
Inspect compressed theme rules during UI regressions.
Copy readable CSS blocks into docs or comments.

Common Pitfalls

Output is best-effort and may not match original formatting.
Complex edge cases like nested at-rules may need manual cleanup.

FAQ

Does this restore comments removed by minification?
No, removed comments cannot be recovered.
Is this good for quick debugging?
Yes, it is designed for readability-first inspection.
Does this tool send data to a backend?
Most tools process input client-side in your browser unless explicitly noted.

Implementation Notes

Treat output from this page as a fast first pass, then validate against production constraints. In real systems, failures usually come from schema mismatches, environment-specific parsing behavior, timezone or encoding assumptions, and auth policy differences across environments. For safer rollouts, capture known-good inputs and outputs from this tool and store them as regression fixtures in your repository.

When sharing outputs with teammates, include endpoint context, expected response behavior, and any relevant headers or flags so results remain reproducible. If this utility is part of a repeated workflow, pair it with nearby tools and reference pages linked below to build a consistent debug path that can be reused during incidents and handoffs.

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