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ADR HTML
File conversion

Convert ADR to HTML

QUICK ANSWER
Is it possible to convert ADR to HTML?
Yes - ADR converts to HTML.

Standard migration path: open ADR in Opera 12 → Bookmarks → Export as HTML. The resulting HTML bookmarks file can be imported by Chrome, Firefox, Edge, and all modern browsers via their Bookmarks → Import function.

Also to HTML: ZHELP · WHTML · TEX

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Tested on macOS, Windows & Linux
Last verified Sep 2026

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How to convert ADR to HTML

Converting a .ADR file to .HTML lets you open the content in software that prefers the .HTML format, though some details may change compared with the original. We are still putting together the list of programs that handle .ADR files.

A full step-by-step guide for this conversion is on the way; the information above is drawn straight from our database.

About these formats

.ADR Opera Bookmarks File

An ADR file is a bookmarks export from old Opera browser (version 12 or earlier, Presto engine). Modern Opera (version 15+) cannot open it. To access your bookmarks, install Opera 12.18,…

Open .ADR details →
.HTML HyperText Markup Language Web Page

An HTML file is a web page - plain text with markup tags that a browser turns into the formatted page you see. To view it, double-click and it opens in your browser (Edge, Chrome, Firefox,…

Open .HTML details →