Dow Jones confirmed on Thursday evening that the company would part ways with Walt Mossberg and Kara Swisher, the co-editors of the very popular All Things Digital news site, at the end of the year when their contracts expire.

Mr. Mossberg has been the highly influential author of Personal Technology columns with The Wall Street Journal for two decades. He and Ms. Swisher collaborated as co-executive editors on All Things Digital, a separate Web site that covered technology and start-up news and also held conferences.

Colleen Schwartz, a spokeswoman for Dow Jones, said the decision to part had been mutual but who would retain the rights to the All Things Digital brand and the archived content had not been decided.

“Right now we have not finalized plans with respect to the brand. The details still being worked out,” she said. Neither Ms. Swisher nor Mr. Mossberg could be immediately reached for comment. Nevertheless, on her Twitter feed, Ms. Swisher made it clear that Dow Jones owned the brand and would keep it. “They have ALWAYS owned it, even though Walt and I built it,” she wrote.