htmlhint 
htmlhint documentation
- Version in MegaLinter: 1.1.4
- Visit Official Web Site
- See How to configure htmlhint rules
- If custom
.htmlhintrcconfig file is not found, .htmlhintrc will be used
- If custom
- See How to disable htmlhint rules in files
- See Index of problems detected by htmlhint
Configuration in MegaLinter
- Enable htmlhint by adding
HTML_HTMLHINTin ENABLE_LINTERS variable - Disable htmlhint by adding
HTML_HTMLHINTin DISABLE_LINTERS variable
| Variable | Description | Default value |
|---|---|---|
| HTML_HTMLHINT_ARGUMENTS | User custom arguments to add in linter CLI call Ex: -s --foo "bar" |
|
| HTML_HTMLHINT_FILTER_REGEX_INCLUDE | Custom regex including filter Ex: (src\|lib) |
Include every file |
| HTML_HTMLHINT_FILTER_REGEX_EXCLUDE | Custom regex excluding filter Ex: (test\|examples) |
Exclude no file |
| HTML_HTMLHINT_CLI_LINT_MODE | Override default CLI lint mode - file: Calls the linter for each file- list_of_files: Call the linter with the list of files as argument- project: Call the linter from the root of the project |
list_of_files |
| HTML_HTMLHINT_FILE_EXTENSIONS | Allowed file extensions. "*" matches any extension, "" matches empty extension. Empty list excludes all filesEx: [".py", ""] |
[".html", ".htm"] |
| HTML_HTMLHINT_FILE_NAMES_REGEX | File name regex filters. Regular expression list for filtering files by their base names using regex full match. Empty list includes all files Ex: ["Dockerfile(-.+)?", "Jenkinsfile"] |
Include every file |
| HTML_HTMLHINT_PRE_COMMANDS | List of bash commands to run before the linter | None |
| HTML_HTMLHINT_POST_COMMANDS | List of bash commands to run after the linter | None |
| HTML_HTMLHINT_CONFIG_FILE | htmlhint configuration file nameUse LINTER_DEFAULT to let the linter find it |
.htmlhintrc |
| HTML_HTMLHINT_RULES_PATH | Path where to find linter configuration file | Workspace folder, then MegaLinter default rules |
| HTML_HTMLHINT_DISABLE_ERRORS | Run linter but consider errors as warnings | false |
| HTML_HTMLHINT_DISABLE_ERRORS_IF_LESS_THAN | Maximum number of errors allowed | 0 |
IDE Integration
Use htmlhint in your favorite IDE to catch errors before MegaLinter !
| IDE | Extension Name | Install | |
|---|---|---|---|
| Atom | atom-htmlhint | Visit Web Site | |
| Brackets | brackets-htmlhint | Visit Web Site | |
| Sublime Text | SublimeLinter-contrib-htmlhint | Visit Web Site | |
| Visual Studio Code | vscode-htmlhint |  |
MegaLinter Flavours
This linter is available in the following flavours
| Flavor | Description | Embedded linters | Info | |
|---|---|---|---|---|
 |
all | Default MegaLinter Flavor | 97 |   |
| dart | Optimized for DART based projects | 42 |   |
|
| documentation | MegaLinter for documentation projects | 41 |   |
|
| dotnet | Optimized for C, C++, C# or VB based projects | 49 |   |
|
| go | Optimized for GO based projects | 43 |   |
|
| java | Optimized for JAVA based projects | 43 |   |
|
| javascript | Optimized for JAVASCRIPT or TYPESCRIPT based projects | 50 |   |
|
| php | Optimized for PHP based projects | 46 |   |
|
| python | Optimized for PYTHON based projects | 49 |   |
|
| ruby | Optimized for RUBY based projects | 42 |   |
|
| rust | Optimized for RUST based projects | 42 |   |
|
| salesforce | Optimized for Salesforce based projects | 44 |   |
|
| scala | Optimized for SCALA based projects | 42 |   |
|
| swift | Optimized for SWIFT based projects | 42 |   |
|
| terraform | Optimized for TERRAFORM based projects | 47 |   |
Behind the scenes
How are identified applicable files
- File extensions:
.html,.htm
How the linting is performed
- htmlhint is called once with the list of files as arguments
Example calls
htmlhint myfile.html
htmlhint --config .htmlhintrc myfile.html
Help content
Usage: htmlhint <file|folder|pattern|stdin|url ...> [options]
Options:
-V, --version output the version number
-l, --list show all of the rules available
-c, --config <file> custom configuration file
-r, --rules <ruleid, ruleid=value ...> set all of the rules available
-R, --rulesdir <file|folder> load custom rules from file or folder
-f, --format <checkstyle|compact|html|json|junit|markdown|unix> output messages as custom format
-i, --ignore <pattern, pattern ...> add pattern to exclude matches
--nocolor disable color
--warn Warn only, exit with 0
-h, --help display help for command
Examples:
htmlhint
htmlhint www
htmlhint www/test.html
htmlhint www/**/*.xhtml
htmlhint www/**/*.{htm,html}
htmlhint http://www.alibaba.com/
cat test.html | htmlhint stdin
htmlhint --list
htmlhint --rules tag-pair,id-class-value=underline test.html
htmlhint --config .htmlhintrc test.html
htmlhint --ignore **/build/**,**/test/**
htmlhint --rulesdir ./rules/
Installation on mega-linter Docker image
- NPM packages (node.js):
Example success log
Results of htmlhint linter (version 0.14.2)
See documentation on https://megalinter.github.io/descriptors/html_htmlhint/
-----------------------------------------------
[SUCCESS] .automation/test/html/html_good_01.html
Config loaded: /action/lib/.automation/.htmlhintrc
Scanned 1 files, no errors found (22 ms).
Example error log
Results of htmlhint linter (version 0.14.2)
See documentation on https://megalinter.github.io/descriptors/html_htmlhint/
-----------------------------------------------
[ERROR] .automation/test/html/html_bad_01.html
Config loaded: /action/lib/.automation/.htmlhintrc
.automation/test/html/html_bad_01.html
L8 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L8 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L8 | <div bad='' bad=''></div>
^ Duplicate of attribute name [ bad ] was found. (attr-no-duplication)
L9 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L9 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L9 | <div bad='' bad=''></div>
^ Duplicate of attribute name [ bad ] was found. (attr-no-duplication)
L10 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L10 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L10 | <div bad='' bad=''></div>
^ Duplicate of attribute name [ bad ] was found. (attr-no-duplication)
L11 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L11 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L11 | <div bad='' bad=''></div>
^ Duplicate of attribute name [ bad ] was found. (attr-no-duplication)
L12 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L12 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L12 | <div bad='' bad=''></div>
^ Duplicate of attribute name [ bad ] was found. (attr-no-duplication)
L13 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L13 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L13 | <div bad='' bad=''></div>
^ Duplicate of attribute name [ bad ] was found. (attr-no-duplication)
L14 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L14 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L14 | <div bad='' bad=''></div>
^ Duplicate of attribute name [ bad ] was found. (attr-no-duplication)
L15 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L15 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L15 | <div bad='' bad=''></div>
^ Duplicate of attribute name [ bad ] was found. (attr-no-duplication)
L16 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L16 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L16 | <div bad='' bad=''></div>
^ Duplicate of attribute name [ bad ] was found. (attr-no-duplication)
L17 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L17 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L17 | <div bad='' bad=''></div>
^ Duplicate of attribute name [ bad ] was found. (attr-no-duplication)
L18 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L18 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L18 | <div bad='' bad=''></div>
^ Duplicate of attribute name [ bad ] was found. (attr-no-duplication)
L19 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L19 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L19 | <div bad='' bad=''></div>
^ Duplicate of attribute name [ bad ] was found. (attr-no-duplication)
L20 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L20 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L20 | <div bad='' bad=''></div>
^ Duplicate of attribute name [ bad ] was found. (attr-no-duplication)
L21 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L21 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L21 | <div bad='' bad=''></div>
^ Duplicate of attribute name [ bad ] was found. (attr-no-duplication)
L22 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L22 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L22 | <div bad='' bad=''></div>
^ Duplicate of attribute name [ bad ] was found. (attr-no-duplication)
L23 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L23 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L23 | <div bad='' bad=''></div>
^ Duplicate of attribute name [ bad ] was found. (attr-no-duplication)
L24 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L24 | <div bad='' bad=''></div>
^ The value of attribute [ bad ] must be in double quotes. (attr-value-double-quotes)
L24 | <div bad='' bad=''></div>
^ Duplicate of attribute name [ bad ] was found. (attr-no-duplication)
L25 | <input type="text"></input>
^ Tag must be paired, no start tag: [ </input> ] (tag-pair)
L26 | <div class"foo">
^ Special characters must be escaped : [ < ]. (spec-char-escape)
L26 | <div class"foo">
^ Special characters must be escaped : [ > ]. (spec-char-escape)
L28 | </div>
^ Tag must be paired, no start tag: [ </div> ] (tag-pair)
L29 | </div>
^ Tag must be paired, no start tag: [ </div> ] (tag-pair)
L30 | </hello>
^ Tag must be paired, no start tag: [ </hello> ] (tag-pair)
L31 | </test>
^ Tag must be paired, no start tag: [ </test> ] (tag-pair)
L32 | </div>
^ Tag must be paired, no start tag: [ </div> ] (tag-pair)
L38 | <div class='' what='' something=''></div>
^ The value of attribute [ class ] must be in double quotes. (attr-value-double-quotes)
L38 | <div class='' what='' something=''></div>
^ The value of attribute [ what ] must be in double quotes. (attr-value-double-quotes)
L38 | <div class='' what='' something=''></div>
^ The value of attribute [ something ] must be in double quotes. (attr-value-double-quotes)
L44 | </div>
^ Tag must be paired, no start tag: [ </div> ] (tag-pair)
L50 | <div class='' what='' something=''></div>
^ The value of attribute [ class ] must be in double quotes. (attr-value-double-quotes)
L50 | <div class='' what='' something=''></div>
^ The value of attribute [ what ] must be in double quotes. (attr-value-double-quotes)
L50 | <div class='' what='' something=''></div>
^ The value of attribute [ something ] must be in double quotes. (attr-value-double-quotes)
L56 | </div>
^ Tag must be paired, no start tag: [ </div> ] (tag-pair)
L62 | <div class='' what='' something=''></div>
^ The value of attribute [ class ] must be in double quotes. (attr-value-double-quotes)
L62 | <div class='' what='' something=''></div>
^ The value of attribute [ what ] must be in double quotes. (attr-value-double-quotes)
L62 | <div class='' what='' something=''></div>
^ The value of attribute [ something ] must be in double quotes. (attr-value-double-quotes)
L68 | </div>
^ Tag must be paired, no start tag: [ </div> ] (tag-pair)
L74 | <div class='' what='' something=''></div>
^ The value of attribute [ class ] must be in double quotes. (attr-value-double-quotes)
L74 | <div class='' what='' something=''></div>
^ The value of attribute [ what ] must be in double quotes. (attr-value-double-quotes)
L74 | <div class='' what='' something=''></div>
^ The value of attribute [ something ] must be in double quotes. (attr-value-double-quotes)
L80 | </div>
^ Tag must be paired, no start tag: [ </div> ] (tag-pair)
L81 |</bad>
^ Tag must be paired, no start tag: [ </bad> ] (tag-pair)
L82 |</bad>
^ Tag must be paired, no start tag: [ </bad> ] (tag-pair)
L83 |</bad>
^ Tag must be paired, no start tag: [ </bad> ] (tag-pair)
L84 |</bad>
^ Tag must be paired, no start tag: [ </bad> ] (tag-pair)
L85 |</bad>
^ Tag must be paired, no start tag: [ </bad> ] (tag-pair)
L86 |</bad>
^ Tag must be paired, no start tag: [ </bad> ] (tag-pair)
L87 |</bad>
^ Tag must be paired, no start tag: [ </bad> ] (tag-pair)
L88 |</bad>
^ Tag must be paired, no start tag: [ </bad> ] (tag-pair)
L89 |</bad>
^ Tag must be paired, no start tag: [ </bad> ] (tag-pair)
L90 |</bad>
^ Tag must be paired, no start tag: [ </bad> ] (tag-pair)
L91 |</bad>
^ Tag must be paired, no start tag: [ </bad> ] (tag-pair)
L92 |</bad>
^ Tag must be paired, no start tag: [ </bad> ] (tag-pair)
L93 |</bad>
^ Tag must be paired, no start tag: [ </bad> ] (tag-pair)
L94 |</bad>
^ Tag must be paired, no start tag: [ </bad> ] (tag-pair)
L95 |</bad>
^ Tag must be paired, no start tag: [ </bad> ] (tag-pair)
L96 |</bad>
^ Tag must be paired, no start tag: [ </bad> ] (tag-pair)
L97 |</bad>
^ Tag must be paired, no start tag: [ </bad> ] (tag-pair)
Scanned 1 files, found 92 errors in 1 files (32 ms)