alphaXiv offers open research discussion forums directly on top of single arXiv research papers. Each paper is equipped with one discussion forum, where users can comment line-by-line on the paper itself. You get access to a paper’s discussion forum by entering an arXiv URL on alphaXiv. Alternatively, when reading a paper on arXiv, you can type alphaxiv.org instead of arxiv.org in your URL search bar. Then, you will automatically be redirected to the forum.

alphaXiv is also available as a Chrome extension.