Export LaTeX Math — Preserved Equations from Any AI
Export AI conversations with properly formatted LaTeX math equations. Block and inline math preserved with correct delimiters. Renders in Obsidian, HTML, and PDF.
The Problem: Broken Math in Exported Conversations
If you have ever exported a conversation containing math equations from an AI platform using a generic tool or manual copy-paste, you have seen the result: backslashes stripped, dollar signs mangled, inline math merged into the surrounding text, and block equations rendered as unreadable garbled text.
This happens because most export tools treat AI output as plain text. They do not distinguish between a dollar sign used as currency and a dollar sign used as a LaTeX delimiter. They strip backslashes as escape characters rather than recognizing them as part of LaTeX commands. The result is that a beautifully formatted equation like:
$$\int_{-\infty}^{\infty} e^{-x^2} dx = \sqrt{\pi}$$
becomes a broken mess in the exported file.
AI Chat Exporter handles LaTeX math as a first-class feature. The extension identifies math delimiters in the AI's response, protects them through the export pipeline, and outputs them with correct formatting in every export format.
How AI Chat Exporter Handles LaTeX
Delimiter Normalization
AI platforms use different math delimiter conventions. ChatGPT and Claude typically use $$...$$ for block math and $...$ for inline math. Some responses use \[...\] and \(...\) instead. The extension normalizes all variants to the standard $$...$$ and $...$ delimiters that most renderers expect.
Backslash Protection
LaTeX commands begin with backslashes: \frac, \sum, \int, \alpha. During Markdown conversion, naive processors strip these as escape characters. AI Chat Exporter identifies LaTeX content blocks and protects all backslash sequences, ensuring every command survives the export pipeline intact.
Bracket Syntax Preservation
The \[...\] and \(...\) bracket syntaxes are preserved when used. The extension detects these patterns and maintains them alongside the $$ and $ delimiters, giving you flexibility in how your math renders in the target application.
HTML KaTeX Auto-Render
When exporting to HTML, the extension includes KaTeX JavaScript and CSS. Math equations in the HTML output are auto-rendered when you open the file in a browser. Block math displays centered, inline math flows with the text, and the full KaTeX symbol set is available.
PrismJS LaTeX Highlighting
When math appears inside fenced code blocks (for example, when showing raw LaTeX source), PrismJS syntax highlighting applies. Keywords, commands, braces, and delimiters are color-coded for readability in code blocks and HTML exports.
PNG KaTeX Rendering
When exporting as PNG, equations are rendered through KaTeX before the final image is captured. The result is a pixel-perfect image of your equations with proper typography, spacing, and formatting. Share equations on social media or in documents without worrying about renderer compatibility.
Supported Math Syntax
| Syntax | Type | Example | Handling |
|---|---|---|---|
$$...$$ |
Block math | $$\sum_{i=1}^{n} x_i$$ |
Preserved as-is, rendered in HTML/PNG exports |
$...$ |
Inline math | The equation $E = mc^2$ is famous |
Preserved, rendered inline in HTML and PNG |
\[...\] |
Block math (alternate) | \[\frac{a}{b}\] |
Normalized to $$...$$ or preserved |
\(...\) |
Inline math (alternate) | \(x^2\) |
Normalized to $...$ or preserved |
```latex |
Code block | Raw LaTeX source in fenced block | Preserved with PrismJS syntax highlighting |
Supported Platforms for Math
Not all AI platforms render math the same way. AI Chat Exporter handles math extraction from platforms where equations are commonly used:
| Platform | Math Rendering | Common Use Cases |
|---|---|---|
| ChatGPT (GPT-4) | Uses $$ and $ delimiters natively |
Calculus, linear algebra, statistics, physics |
| Claude | Uses $$ and $ delimiters |
Mathematical proofs, formal logic, probability |
| Gemini | Renders math in response UI, exports with delimiters | STEM coursework, research derivations |
| DeepSeek | Uses LaTeX delimiters, especially for DeepThink | Mathematical reasoning, proof verification |
| Other Platforms | Varies; extension normalizes what it finds | Any math content in supported platforms |
Output Formats with Math Support
Markdown (.md)
Equations are exported with $$ and $ delimiters. This format is KaTeX-ready and works directly with Obsidian (with MathJax or KaTeX plugin), Logseq, Typora, HackMD, and any editor that supports KaTeX or MathJax rendering.
HTML (.html)
The HTML export bundles KaTeX JavaScript and CSS. Open the file in any modern browser and equations render automatically. Block math is centered, inline math flows with the text, and the full KaTeX symbol library is available. No additional setup required.
PDF (.pdf)
Equations are rendered through KaTeX before PDF generation. The result is a print-ready document with properly typeset mathematics. Supports multi-page documents with page breaks, table of contents, and both dark and light themes.
PNG (.png)
Full conversation is rendered to a scrollable image with KaTeX-rendered equations. Equations appear with professional typography and correct spacing. Ideal for sharing math-heavy conversations on social media or in presentations.
Use Cases
Academic Notes
Export conversations where you worked through mathematical problems. The preserved equations become study notes you can reference during exams or research. Import into Obsidian and link to your course notes.
Research Documentation
Keep a record of AI-assisted derivations, proofs, and calculations. The structured JSON export preserves equation metadata alongside the conversation context for future reference.
Paper Drafting
Export math-heavy brainstorming sessions and import the LaTeX content directly into your paper. The extension preserves LaTeX syntax so you can copy equations from the exported file into your LaTeX document without reformatting.
Teaching Materials
Create PDF handouts from conversations about mathematical topics. The rendered equations in the PDF export look professional and are ready to distribute to students or colleagues.
LaTeX Snippet Library
Build a searchable library of LaTeX code snippets by exporting conversations that contain formatted equations. The PrismJS-highlighted code blocks in Markdown and HTML exports make it easy to find and reuse specific LaTeX constructions.
Cross-Platform Math Transfer
Export a math conversation from ChatGPT and continue it on Claude using cross-AI transfer. Equations are preserved in the transfer, so the target AI receives the full mathematical context.
Using Exported Math in Obsidian
Obsidian supports math rendering through its built-in MathJax engine and through community plugins like KaTeX. When you export a conversation with equations using AI Chat Exporter's Markdown format, the resulting file works directly in Obsidian:
- Block equations (
$$...$$) render as centered, display-style math. - Inline equations (
$...$) render within the text flow. - No plugin configuration is required for basic math rendering.
- Equations are searchable as text when you search your vault.
- You can link to exported math notes from other notes and build a connected knowledge base of mathematical content.
Comparison with Other Export Approaches
| Approach | Math Handling | Result |
|---|---|---|
| Manual copy-paste | Strips delimiters, backslashes become escape characters | Equations broken, unreadable |
| Generic web clipper | Captures rendered HTML, loses LaTeX source | Visual only, not editable as LaTeX |
| ChatGPT data export | Includes raw LaTeX in JSON but no formatting | Usable but requires parsing |
| AI Chat Exporter | Normalizes delimiters, protects backslashes, renders in HTML/PNG | Clean, portable, render-ready math in every format |
Frequently Asked Questions
Yes. Obsidian has built-in MathJax support. Block equations enclosed in $$...$$ render as display math, and inline equations enclosed in $...$ render within the text. No additional plugins are required for basic math rendering. For advanced KaTeX features, the Obsidian community offers KaTeX and MathJax plugins.
Yes. The extension recognizes and preserves both inline math (single dollar signs: $equation$) and block math (double dollar signs: $$equation$$). It also handles the alternate bracket syntaxes (\[...\] and \(...\)) and normalizes them to the standard delimiter format.
The extension preserves the LaTeX source code for any equation, including those that use specialized packages. However, rendering depends on the target application. KaTeX (used in HTML and PNG exports) supports a subset of LaTeX math commands. Full LaTeX packages like Chemfig, TikZ, and PSTricks require a full LaTeX compiler and cannot be rendered by KaTeX. The raw LaTeX source is preserved in Markdown and JSON exports for use with a full LaTeX toolchain.
Yes. The PNG export renders equations through KaTeX before capturing the final image. Block equations appear centered with professional typography. Inline equations render within the text. The resulting image can be shared directly in documents, presentations, or on social media.
Export the conversation as Markdown. The LaTeX equations in the file use standard $$ and $ delimiters that are directly compatible with LaTeX document classes. Copy the equation blocks from the exported file into your .tex document. If your paper uses \[...\] delimiters, a simple find-and-replace from $$ to \[ and \] converts the format.
Math preservation works on any platform where the AI outputs LaTeX equations. ChatGPT, Claude, Gemini, and DeepSeek consistently use LaTeX delimiters. Other platforms may or may not include math notation. The extension preserves whatever math syntax it finds in the conversation, normalizing delimiters where possible.