Enter source text to begin.
Output actions
Source text, never a preview
HTML is tokenized and written only into text controls. Pasted scripts are not executed, markup is never inserted with innerHTML, and referenced images or styles are not fetched.
Preserved source details
Element order, attributes, comments, raw script/style text, and quoted values remain source text. Formatting changes layout whitespace, not attribute or URL values.
Practical formatter scope
The formatter supports ordinary HTML structure but is not a browser validator or repair engine. It does not claim to normalize every malformed fragment.
Practical input limit
Input is limited to 6 MB of text. Small files, common 100 KB and 1 MB inputs, and representative 5 MB workloads are supported locally; larger work should use a streaming or command-line workflow.