OpenPaper Sionic AI

Open source · macOS and Windows

OpenPaper
Read any paper in your language.

Search arXiv, read a paper side by side with its translation, and ask questions about it.

It runs on the Claude Code or Codex you are already logged in to, or on your own API key. Your papers stay on your computer.

Download for macOSApple silicon and Intel · macOS 11+ Download for WindowsWindows 10 and 11 · 64-bit

Free under the MIT license.

OpenPaper showing an English paper next to its Korean translation, with a linked sentence highlighted on both sides

The original and the translation, together.
Sentence by sentence.

Linked sentences

Point at a sentence and its pair lights up in the other column. Equations, figures and tables stay where the paper put them.

An English sentence and its translation highlighted together

Ask and summarize

Select a passage and ask about it, or get a summary of the whole paper. Answers come in your language.

The Ask Claude panel answering a question about the paper

Find papers

Search arXiv by keywords, paste an arXiv ID or URL, or open a PDF. The AI finder only suggests papers that really exist on arXiv.

arXiv search results in OpenPaper

Seven languages, two styles

Translate into Korean, Japanese, Chinese, Spanish, French, German or Portuguese. Pick a faithful translation, or an easy version that explains hard terms in plain words.

  • 한국어
  • 日本語
  • 中文
  • Español
  • Français
  • Deutsch
  • Português
  • Papers, translations and summaries are plain files on your computer.
  • Pick your model: Claude Code, Codex, the Anthropic API, OpenGateway, or an OpenAI-compatible API such as OpenRouter.
  • Reopen a paper where you stopped, and find text in both columns.

Get started

macOS: one command

Installs the app, installs Claude Code if it is missing, and starts the login. Run it again to update.

$ curl -fsSL https://raw.githubusercontent.com/sionic-ai/openpaper/main/install.sh | bash

Windows: setup program

Download and run the setup program. It installs for your user, with no admin rights. If you don't have Claude Code yet, run this in PowerShell and log in.

> irm https://claude.ai/install.ps1 | iex
> claude auth login

Build from source

Tauri 2, Rust and React. Needs Rust, Node and pnpm, and a logged-in Claude Code.

$ git clone https://github.com/sionic-ai/openpaper && cd openpaper && pnpm install && pnpm dev

Built in the open by Sionic AI

OpenPaper is open source. Report a problem, suggest a feature, or send a pull request.

View on GitHub All releases How it works