Papers, notes and proofs in one research workspace.

Oyren combines a PDF reader with AI questions, editable notes and mind maps. Lean 4 with Mathlib runs in a cloud Codespace alongside the research files.

Get started
The Oyren PDF reader open on Turing's morphogenesis paper. A popup answers a question about the formula on the page: it explains the roots of unity sum and names the uploaded page and section it came from
A question about a formula in Turing’s morphogenesis paper, answered beside the source page.

AI questions with the paper in view

Select text or a region in a PDF and ask AI about it. The visible page and available document text provide context for the answer. The paper stays open beside the conversation for checking the explanation against its source.

PDF reading and conversion into notes

Questions around the papers

Notes and mind maps live in the same workspace as the papers. A map can group open questions, related ideas and the next steps in a project. Its branches and connections remain editable.

A manually prepared Community garden mind map in Oyren, with branches for beds, watering and harvest
Community garden

Manually prepared map, captured in Oyren. This example shows a community garden project.

Proof checking with Lean 4 and Mathlib

The Lean 4 add-on launches a cloud development machine with the toolchain, Mathlib cache and editor infoview installed. Proof files can be edited and checked in the browser.

The launch controls show the required machine size and runtime cost. For a workflow that needs a GPU, reach out to us.

See the Lean 4 workspace
The Lean 4 and Mathlib add-on in the Oyren Codespace launch wizard
Seeded development workspace: the Lean 4 + Mathlib launch option.

Plans for ongoing research

Compare plans for storage and monthly credits. PDF conversion and AI use credits; Codespace runtime is billed separately.