The research IDE built for LaTeX.
Write papers, run code, and cite sources — in one fast, native editor designed for serious research.
Built for researchers at
LaTeX, done right
A LaTeX editor that gets out of your way.
Live preview, inline errors, bibliography assist, and one-keystroke PDF compile. Phase reads .tex like a first-class citizen — no plugin chains, no fragile builds.
What's included
Everything you need to write research.
Four agent modes
Ask, Edit, Plan, and Research. Switch modes inline — each is tuned for a different stage of writing.
Notebook compatible
Open and export .ipynb. Python, TypeScript, R, and Go kernels run alongside your prose.
Local-first & private
Your project, your machine. Bring your own keys across 8 LLM providers — Anthropic, OpenAI, Google, and more.
Research, not chat
Sources you can trust, in the editor.
Web search, paper retrieval through Unpaywall, and a hybrid BM25 + vector index over your References folder. Cite with one keystroke; agents read what you read.
Built on VS Code
The keybindings you already know.
Phase is a VS Code fork — your extensions, your command palette, your muscle memory. Native chat lives next to your code, with four agent modes tuned for research.
“Phase is the editor I wished I had in grad school. It collapses reading, coding, and writing into one surface — without making any of them worse.”
Get started with Phase.
Free during public beta. Download for your platform — no account required to install.