Joji's is a Singapore F&B business bringing an American diner experience to the neighbourhood, described on its own site as "your go to neighbourhood all American food spot." The first outlet, Joji's Diner, was founded during the pandemic in 2021 - the story goes that the founder's boss really liked American food and wanted to bring a true American-themed diner back to Singapore.
The concept has since grown to two outlets on Upper Serangoon Road: Joji's Diner and Joji's Sandwich Parlour (also referred to as Joji's Deli). Together they cover everything "from hearty breakfast to bespoke sandwiches, brought to you daily at any time of the day."
What really sets Joji's apart is its hours - both outlets are open 24 hours a day, every day of the year, including public holidays. It's a genuine round-the-clock American food option in the neighbourhood, whether you're after a late-night bite or an early breakfast before most other places have opened. Joji's is not currently halal certified.
Some diners close at midnight. Some close even earlier. Joji's doesn't close at all - it's open 24 hours a day, every single day of the year, public holidays included. That single fact does more to define the business than almost anything else on its website: this is a neighbourhood spot built for whenever hunger strikes, not just for standard mealtimes.
Joji's story starts in 2021, during the pandemic, when the founder's boss - a genuine fan of American food - decided to bring a true American-themed diner back to Singapore. That idea became Joji's Diner, the first of what is now two outlets sitting side by side on Upper Serangoon Road.
Joji's now operates as two connected concepts: Joji's Diner and Joji's Sandwich Parlour, sometimes referred to as Joji's Deli. Between them, the offering spans "from hearty breakfast to bespoke sandwiches, brought to you daily at any time of the day." It's a simple but effective split - the Diner side leaning into classic American comfort food territory, and the Sandwich Parlour built around made-to-order sandwiches - all available under the same round-the-clock hours.
While plenty of Singapore F&B spots advertise long hours, Joji's is explicit about what that actually means for them: 24 hours a day, all day and all night, even on public holidays. For a neighbourhood craving American diner food at 3am, or breakfast well past the usual breakfast window, that's a fairly rare offering. It also means there's no need to check opening times before a visit - Joji's is simply always open.
Joji's Diner is located at 534 Upper Serangoon Road, 534549, with Joji's Sandwich Parlour just next door at 536 Upper Serangoon Road, 534551. Being positioned right next to each other makes it easy to grab a booth at the Diner or head to the Parlour for a sandwich, depending on the craving.
Joji's is currently not halal certified, which is worth knowing if that's a consideration for your visit. Beyond that, the brand keeps things simple - it describes itself plainly as "your go to neighbourhood all American food spot," and leans on its round-the-clock availability as the main draw rather than a long, elaborate menu pitch.
Joji's Diner can be reached directly on +65 6993 0461, while Joji's Sandwich Parlour has its own line at +65 9100 9030. Both outlets can also be found on Facebook and Instagram under Joji's Diner, for anyone wanting a look at what's coming out of the kitchen before their next 3am craving hits.