Live, at every zoom
A crisp SVG preview that updates as you write.
NATIVE BY DESIGN. TYPST AT HEART.
Typst, beautifully
at home on Mac.
A native writing experience. A complete Typst editor.
And Pro tools that bring your research together.
macOS 26 or later · Apple silicon & Intel · Typst included
−100%+Live preview◐
01 / THE MAC EXPERIENCE
Feels like your Mac.
Because it belongs.
A native Swift interface with Liquid Glass controls, familiar keyboard shortcuts, and a sidebar that slips into view when you need it.
Thoughtful from the window to the smallest control, so the interface feels at home—and your writing takes the focus.
02 / THE TYPST EDITOR
From the first keystroke
to the finished page.
Write, check and export in one place.
Typst is built in. Nothing else to install.
WRITE / INTELLIGENT ASSISTANCE
= A clearer idea
#text(size: 12pt)[Hello, Typst.]
#text(size: 12pt)[Hello, Typst.]
text(body, font:, size:, fill:, …)Customizes the look and layout of text.
SEE / LIVE SVG PREVIEW
VECTOR SHARP
A clearer idea
Hello, Typst.
Change the source. See the page take shape.
A PDF, ready to share
Export a finished document directly from the app.
Keep the outline in view
See headings in the sidebar and jump to any section.
Catch issues as you write
Inline errors, warnings and type feedback near the source.
The right word, sooner
Complete functions, symbols and arguments without leaving your note.
Import. Keep going.
Missing Typst Universe packages download automatically.
Built to keep up with your thinking.
Lefko’s incremental SVG preview engine reuses unchanged blocks and keeps compilation off the interface thread. Powered by the embedded Typst compiler, with no separate setup.
03 / LEFKO PRO
Beyond the editorFor the thinking
around the writing.
Bring familiar math, your reference library and connected notes into the same flow.
01 / LATEX CONVERSION
Math, without the detour.
See conversion and rendered preview update as you type, then insert it.
\frac{a}{b} + \alphaa/b + α02 / REFERENCES
Your library, one thought away.
Search a BibTeX export by title, author or year and insert a citation.
Attention Is All You NeedVaswani et al. · 2017 · NeurIPSInsert citation ↵
03 / BIDIRECTIONAL LINKS
One idea leads to another.
Link to another note and see which notes link back.
IDEAS
Transformers in practice⇄PAPERS
Attention Is All You Need
Transformers in practice⇄PAPERS
Attention Is All You Need
04 / INTERACTIVE TABLES
Shape the table. Skip the syntax.
Edit cells in a grid or paste from a spreadsheet with live preview.
| Model | Layers | Hidden size |
|---|---|---|
| Base | 6 | 512 |
| Large | 6 | 1024 |
A clearer space.
A better way to write.
Lefko takes its name from λευκό, Greek for white.
For us, it means leaving space—for your words, and what comes next.