TheoremTurn LaTeX into crisp PNG, SVG and PDF images
Theorem is a free LaTeX equation renderer. Type your math, watch it typeset as you go, and export it with a transparent background for slides, documents and the web.
Free and open source. Windows, macOS and Linux. No account, and nothing you type leaves your device.
\int_{-\infty}^{\infty} e^{-x^{2}}\,dx = \sqrt{\pi}Export LaTeX as PNG, SVG, PDF, WebP or JPG
Pick the format that fits where the equation is going. Raster formats export at up to 6× resolution, with a live pixel readout before you save.
| Format | Transparent background | Scales without blur | Good for |
|---|---|---|---|
| PNG | Yes | No, export at up to 6× | Slides, Word, Docs, chat |
| SVG | Yes | Yes | Websites, Figma, Inkscape |
| Yes | Yes, true vector | Print, LaTeX documents | |
| WebP | Yes | No, export at up to 6× | Small files for the web |
| JPG | No | No, export at up to 6× | Places that need a flat colour background |
Built for people who write math
Everything a LaTeX to image converter should do, without an upload step or an account.
- Live typesetting
- MathJax renders as you type, with full environment support: equation, align, cases, split, gather, matrices and arrays. Errors show inline in plain language.
- Paste and drag anywhere
- Copy the equation as an image straight into Word, Docs and Outlook. On the desktop, drag it out of the window into PowerPoint or a folder as a file.
- Editable PNGs
- Every exported PNG carries its LaTeX source inside the file. Drop it back into Theorem on any machine and the editable formula returns.
- A full toolbox
- Inline autocomplete, 40+ formula templates, a 160-command reference and a symbol palette, with placeholders selected and ready to type over.
- Control over the look
- Set ink colour, size, background, padding and rounded corners, pick a separate colour to highlight part of an equation, and switch to a dark theme.
- Private by design
- Rendering is 100% client-side, so your equations are never uploaded. The desktop app adds full offline use.
- Pick up where you left off
- Open or drag in .tex files, share a link that carries the equation in its URL, and return to your recent renders from the history.
From LaTeX to image in three steps
Type
Write or paste LaTeX. Autocomplete, templates and the symbol palette fill in the rest.
Style
Set ink, background, padding and corners on a checkerboard stage that shows exactly what you will export.
Export
Save PNG, SVG, WebP, JPG or PDF, copy to the clipboard with one keystroke, or drag it into your slide deck.
Use it in the browser or on your desktop
Same engine and same exports in both. Pick whichever fits how you work.
| Web app | Desktop app | |
|---|---|---|
| Install | None, open the link | Installer from GitHub Releases |
| Offline | After your first visit | Fully offline |
| Export formats | All of them | All of them |
| Drag equations out as files | No | Yes |
| Open .tex by double-click | No | Yes |
| Updates | Always the latest | Automatic |
| Price | Free | Free, MIT licensed |
Questions people ask
How do I convert LaTeX to PNG?
Type or paste your LaTeX into Theorem, check the live preview, choose PNG and export. The background stays transparent unless you pick a colour.
Is Theorem free?
Yes. The web app and the desktop app are free and open source under the MIT license, with no account and no watermark.
Does Theorem upload my equations?
No. Rendering happens entirely in your browser or in the desktop app, so what you type never leaves your device.
Can I export a LaTeX equation with a transparent background?
Yes. PNG, WebP and SVG exports keep a transparent background. JPG cannot store transparency, so it uses the background colour you choose.
Does Theorem work offline?
The desktop app works fully offline. The web app also keeps working offline after your first visit.
Which LaTeX does Theorem support?
Theorem typesets math with MathJax, including equation, align, cases, split, gather, matrices and arrays. It renders equations, not whole documents with a documentclass.
Can I edit an exported equation later?
Yes. Every PNG exported from Theorem carries its LaTeX source inside the file. Drop the PNG back into Theorem on any machine and the editable formula returns.