You can see the live preview of the HTML on the same page, but you can also show the preview in a new separate tab where it is more stable.

The viewer highlights the HTML for better readability using the high performance editor: Ace (license). The highlighted code can also be shown in a separate tab where it is rendered at once (not in the editor), so the browser's native search function can be used (Ctrl+F). This highlighting is done using a reliable third-party library: highlight.js (license).

The formatting function can be useful too. It is done using an efficient third-party library: JS Beautifier (license).

Available functions:

• Preview (Alt+1) button renders the HTML code in a new tab.
• Highlight (Alt+2) button shows the entire highlighted code in a new tab.
• Format (Alt+3) button beautifies the HTML text.
• Expand all (Alt+4) button expands all elements.
• Collapse all (Alt+5) button collapses all elements.
• Sample (Alt+6) button puts a sample HTML text into the editor.
• Clear (Alt+7) button erases the editor text.

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All input is processed locally (not by a server) and it is thus 100% safe and private.

Internal libraries used:

• jQuery (license)
• Bootstrap (license)
• Font Awesome (license)

Check other viewers:

• JavaScript Online Viewer
• CSS Online Viewer
• XML Online Viewer
• JSON Online Viewer
• Text Online Viewer

The favicon is from the Oxygen Icons set made by KDE (license)

If you have any suggestions, please use the following contact email address: