Articles
Practical guides for SmartPlusLab online tools.
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How to Use HTML Viewer to Inspect HTML Text
Enter HTML, select source or preview, and compare the returned text forms with the character and newline-separated segment counts. An empty field is handled successfully, and source is the default mode.
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How to Convert HTML to Plain Text
Paste HTML as a text value, choose the line-break, link, and script-removal options, then run the conversion. The result is plain text with tags removed and supported entities decoded.
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How to Convert HTML to Markdown
Enter HTML code and run the converter to receive Markdown-style text. Review the result because conversion covers selected patterns rather than every HTML variation.
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How to Format HTML with 2-Space Indentation
Enter HTML text, keep beautify selected for readable indentation, and choose an indentation value such as 2 spaces. Use minify when you want the documented comment and whitespace reductions instead.
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How to Encode Text as HTML Entities
Provide text and submit it to receive a successful HTML-entity encoding result. A submission with no text is unsuccessful.
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How to Decode HTML Entities in Text
Enter non-empty HTML-encoded text, start HTML Decode, and review the returned character form. An empty input produces an unsuccessful result instead of decoded text.
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How to Encode and Decode HTML Entities
Enter the text, then use the exact mode value `encode` for nonempty HTML escaping or another mode value for nonempty HTML unescaping. Empty input returns successfully with empty transformed text and the supplied mode, without applying either nonempty-text operation.
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How to Generate an Apache .htaccess File with Redirect and Cache Rules
Choose the redirect, cache, security-header, and custom-rule options you need, then generate Apache `.htaccess` configuration text for review. Supplied values remain your responsibility to inspect before separate use.
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How to Generate an HMAC
Enter non-empty text, provide the intended secret, choose a usable algorithm, and start generation. SHA-256 is selected by default.
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How to Convert HEX to RGB
Enter a three- or six-digit HEX color, with or without a leading `#`, and start the conversion. Valid input returns RGB channel values and several formatted color representations.
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How to Use a Hex Color Picker to Convert HEX to RGB and HSL
Enter a hexadecimal color, run the conversion, and review its RGB, HSL, six-digit HEX, and lightness results. If you omit the input, the tool uses #ff5733.
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How to Convert HEIC to PNG
Provide the HEIC or HEIF image bytes as base64 image data, then submit them for conversion. A successful operation returns base64-encoded data representing the PNG image.