Anthony Loyd and Jack Hill of The Times, were returning to Turkey from Aleppo when they were seized yesterday.
They were reportedly freed after members of the Islamic Front, a coalition of rebel groups, intervened.
Dozens of journalists have been killed, injured or kidnapped in Syria since the conflict began in 2011.
The men had been on a three-day trip to the northern Syrian city of Aleppo, which has come under fierce aerial bombardment as government forces try to end a long-standing stalemate against the rebels in the city.
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Loyd was shot twice in the legs, and both men were badly beaten to stop them trying to escape, the Times reported.
Syria has become one of the most dangerous places in the world for journalists.
More than 60 have been killed in the country since the beginning of the uprising against President Bashar al-Assad in March, 2011.
The news broke as foreign ministers from 11 Western and Arab nations, led by US Secretary of State John Kerry, flew in to London for a meeting to discuss new ways of supporting the Syrian opposition.
Syria's three-year conflict has left some 150,000 people dead.