Diagonal was a Spanish biweekly alternative newspaper,[1] covering breaking news, culture, political analysis from a grassroots approach.

It presents itself as a communication tool for the left-leaning social movements, and as a "critical and independent media, without directors or bosses, resting on the base of thousands of subscribers".

With the 97.5% of support,[18] Diagonal has opened a 6-month process named "Great Leap Forward" (mocking the 60s Chinese campaign).

[21] It is funded through reader subscriptions, direct sale, ethical advertisement, donations and commercialization of articles with the newspaper image.

Diagonal has local editions in several Spanish regions, in particular Andalucía, Aragón, Asturias, Cantabria and Galicia.