Content enhancements: Mermaid, LaTeX, and Markdown

Render Mermaid diagrams and LaTeX formulas, format your own messages in Markdown, copy tables in one click, and export conversations.

Ophel adds a layer of interactivity to AI conversation pages: diagrams that some platforms leave as raw code get rendered automatically, math formulas become copyable with a double-click, your own messages display Markdown formatting, and any conversation can be exported in multiple formats.

Mermaid diagram rendering

Some AI platforms display Mermaid code blocks as raw text instead of rendered diagrams. When Ophel detects an unrendered Mermaid block, it renders the diagram in place automatically.

Settings → Features → Content → Render Mermaid in AI replies (default: on)

This only activates when the platform itself has not rendered the Mermaid block. It will not interfere with native diagram rendering.

LaTeX formula rendering

When an AI reply contains math, Ophel recognizes LaTeX delimiters and renders the formulas inline. To copy the raw LaTeX source from any rendered formula, double-click it — Ophel copies it to your clipboard immediately.

Settings → Features → Content → Double-click to copy LaTeX (default: on)

Formula delimiter conversion

When copying LaTeX, Ophel can automatically convert between delimiter styles before placing the text on the clipboard:

• Inline: $ ... $ ↔ \( ... \)
• Block: $$ ... $$ ↔ \[ ... \]

Enable Settings → Features → Content → Formula delimiter conversion to convert copied LaTeX to \( \) / \[ \] form, which is more compatible with tools like Obsidian or Typora.

User message Markdown rendering

Markdown syntax you type in the AI input box — **bold**, `code`, - list item — normally appears as plain text in your message bubble after sending. With this feature enabled, Ophel renders Markdown formatting inside your messages so they’re easier to read.

Settings → Features → Content → Render Markdown in user messages (default: on)

Markdown table copy

A Copy button appears on tables inside AI replies. Clicking it copies the table as standard Markdown table syntax, ready to paste into any Markdown editor.

Settings → Features → Content → Copy Markdown tables (default: on)

Conversation export

Export any conversation to a file from the toolbox menu → Export. Three formats are available:

Markdown (.md)

Exports the full conversation with speaker labels and message content formatted as Markdown. Useful for pasting into notes apps, wikis, or documentation.

JSON (.json)

Exports structured data including metadata. Useful for programmatic processing or archiving.

Plain text (.txt)

Exports a clean, unformatted transcript.

Settings → Features → Export controls export behavior:

Setting	Description
Custom user name	Replaces “Me” in exported files; leave blank to use the default
Custom AI name	Replaces the AI’s name in exported files; leave blank to use the platform name
Include timestamp in filename	Appends a timestamp to the filename to avoid overwriting existing exports
Include chain of thought	Include the AI’s reasoning content in exports (applies to platforms that expose it)

Platform-specific fixes

Markdown fix (Gemini, AI Studio, ChatGPT)

These platforms sometimes fail to render bold text correctly — **text** appears as literal characters instead of formatted output. Ophel includes a patch for each affected platform.

• Settings → Site Settings → Gemini → Markdown fix
• Settings → Site Settings → AI Studio → Markdown fix
• Settings → Site Settings → ChatGPT → Markdown fix

Watermark removal (Gemini, AI Studio)

Gemini and AI Studio can attach “Created with Gemini” watermarks when exporting or screenshotting certain content. Enabling this removes those watermarks.

This feature requires the optional <all_urls> permission (used to fetch images and convert them to base64). The browser will prompt for permission the first time you enable it.

Settings → Site Settings → Gemini → Remove watermark