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Minify supported source code online to reduce formatting overhead while reviewing syntax, size, and output limits. 한국어 locale.
Make HTML structure easier to inspect
This tool removes selected whitespace and presentation characters from supported source text to make it smaller. Minification can improve transfer size for some assets, but it is not compression, encryption, validation, or a guarantee that the result preserves every runtime behavior.
Formatting is not HTML validation
A minifier transforms source according to a language or format grammar. It may remove comments, shorten safe names, fold expressions, or rewrite syntax depending on options. Safe transformations require a parser and a target environment; generic text removal can change meaning.
How to format HTML
- Choose the language, paste source, select conservative options, run the minifier, and compare output with the original. Keep source maps and readable source in the build pipeline. Test the result in the target runtime, including error handling and dynamic features.
- Choose the language, paste source, select conservative options, run the minifier, and compare output with the original. Keep source maps and readable source in the build pipeline. Test the result in the target runtime, including error handling and dynamic features. Compare minified output with the original behavior.
Formatting method
- Read markup structure
The minifier tokenizes or parses source, applies configured transformations, and emits compact output. Unsupported syntax, comments, embedded languages, and feature assumptions may limit optimization or produce an error. Options and language versions affect the result.
- Apply indentation
The minifier tokenizes or parses source, applies configured transformations, and emits compact output. Unsupported syntax, comments, embedded languages, and feature assumptions may limit optimization or produce an error. Options and language versions affect the result.
- Preserve content
The minifier tokenizes or parses source, applies configured transformations, and emits compact output. Unsupported syntax, comments, embedded languages, and feature assumptions may limit optimization or produce an error. Options and language versions affect the result.
Exact parser recovery, optional-tag handling, whitespace policy, embedded-language behavior, and error wording should be c...
Read the formatted result
A useful result is smaller while retaining intended behavior under the chosen target. Check source maps, license comments, strings, regular expressions, public names, and error locations. Size reduction alone does not prove correctness.
흔한 실수
Common mistakes include minifying the wrong language, removing comments required by licenses, enabling unsafe optimizations, comparing compressed and minified size incorrectly, and skipping runtime or source-map tests.
Common mistakes include minifying the wrong language, removing comments required by licenses, enabling unsafe optimizations, comparing compressed and minified size incorrectly, and skipping runtime or source-map tests. Compare minified output with the original behavior.
제한 사항 및 특수 사례
The minifier cannot guarantee semantic equivalence for unsupported syntax, dynamic evaluation, reflection, browser quirks, or third-party integrations. Use a pinned toolchain and test representative production paths.
The minifier cannot guarantee semantic equivalence for unsupported syntax, dynamic evaluation, reflection, browser quirks, or third-party integrations. Use a pinned toolchain and test representative production paths. Compare minified output with the original behavior.
Examples
Code Minifier online — 1
What does a code minifier do?
Choose the language, paste source, select conservative options, run the minifier, and compare output with the original. Keep source maps and readable source in the build pipeline. Test the result in the target runtime, including error handling and dynamic features.
A useful result is smaller while retaining intended behavior under the chosen target. Check source maps, license comments, strings, regular expressions, public names, and error locations. Size reduction alone does not prove correctness.
Code Minifier online — 2
Does minification compress files?
Choose the language, paste source, select conservative options, run the minifier, and compare output with the original. Keep source maps and readable source in the build pipeline. Test the result in the target runtime, including error handling and dynamic features.
A useful result is smaller while retaining intended behavior under the chosen target. Check source maps, license comments, strings, regular expressions, public names, and error locations. Size reduction alone does not prove correctness.
Code Minifier online — 3
Can it change program behavior?
Choose the language, paste source, select conservative options, run the minifier, and compare output with the original. Keep source maps and readable source in the build pipeline. Test the result in the target runtime, including error handling and dynamic features.
A useful result is smaller while retaining intended behavior under the chosen target. Check source maps, license comments, strings, regular expressions, public names, and error locations. Size reduction alone does not prove correctness.
Code Minifier online — 4
Are comments removed?
Choose the language, paste source, select conservative options, run the minifier, and compare output with the original. Keep source maps and readable source in the build pipeline. Test the result in the target runtime, including error handling and dynamic features.
A useful result is smaller while retaining intended behavior under the chosen target. Check source maps, license comments, strings, regular expressions, public names, and error locations. Size reduction alone does not prove correctness.
Code Minifier online — 5
Should I keep source maps?
Choose the language, paste source, select conservative options, run the minifier, and compare output with the original. Keep source maps and readable source in the build pipeline. Test the result in the target runtime, including error handling and dynamic features.
A useful result is smaller while retaining intended behavior under the chosen target. Check source maps, license comments, strings, regular expressions, public names, and error locations. Size reduction alone does not prove correctness.
Code Minifier online — 6
Does it support every language?
Choose the language, paste source, select conservative options, run the minifier, and compare output with the original. Keep source maps and readable source in the build pipeline. Test the result in the target runtime, including error handling and dynamic features.
A useful result is smaller while retaining intended behavior under the chosen target. Check source maps, license comments, strings, regular expressions, public names, and error locations. Size reduction alone does not prove correctness.
Frequently asked questions
What does a code minifier do?
Minification is a build transformation. Pin the language and options, preserve source maps, and test behavior and size in the target deployment.
Does minification compress files?
Minification is a build transformation. Pin the language and options, preserve source maps, and test behavior and size in the target deployment.
Can it change program behavior?
Minification is a build transformation. Pin the language and options, preserve source maps, and test behavior and size in the target deployment.
Are comments removed?
Minification is a build transformation. Pin the language and options, preserve source maps, and test behavior and size in the target deployment.
Should I keep source maps?
Minification is a build transformation. Pin the language and options, preserve source maps, and test behavior and size in the target deployment.
Does it support every language?
Minification is a build transformation. Pin the language and options, preserve source maps, and test behavior and size in the target deployment.
How do I verify output?
Minification is a build transformation. Pin the language and options, preserve source maps, and test behavior and size in the target deployment.
Is minified code secure?
Minification is a build transformation. Pin the language and options, preserve source maps, and test behavior and size in the target deployment.