One of Tokyo’s biggest and most frequent flea markets, this event takes place over many—if not all—weekends a month. Also known as the Tokyo City Flea Market, it can feature up to 600 (!) vendors on a busy day, making it a great place to hunt for bargains.
Most vendors sell used clothes simply laid out in piles on a tarp, but some have Japanese antiques, household goods or secondhand electronics on offer. You can definitely bargain at this market, as prices suggested by the mainly private sellers are flexible. There are also a number of food stalls. While the official opening hours are until 2:30-3pm, sellers often start wrapping things up around noon, so make sure to come early.
On weekends when this market isn’t happening, there are often other, smaller markets on the go.