The foundational budget strategy for Copenhagen is simple: spend less on accommodation and more on food. Copenhagen's restaurant scene — from Noma alumni casual spots to excellent smørrebrød lunch counters — is the city's defining cultural experience, and a traveler who stays in a modest hotel but eats at the right places will have a richer Copenhagen experience than someone in a grand hotel eating exclusively from room service.
Wakeup Copenhagen is the most consistent performer in the city's budget hotel market, and the Borgergade location in the inner city is the network's best property. The rooms are small (Danish shipping-container levels of efficiency) but designed with the quality sensibility you'd expect in a city where Arne Jacobsen was famous for getting chairs right. The beds are excellent, the showers work properly, and the Metro at Kongens Nytorv is two minutes away. For the price — typically €80-150/night depending on season — the Borgergade location is genuinely hard to beat.
Generator Copenhagen in a former bank building near Frederiksberg is the best hostel-to-hotel crossover in the city. Private rooms are comfortable and well-designed, the common areas are beautiful, and the bar programme is genuinely good — making Generator a social destination for younger travelers who want design quality without the price of standalone boutique hotels. The Frederiksberg location is slightly removed from the city center but well-connected by Metro.
CABINN Hotels operate a network of compact-room properties throughout the city, all applying a yacht-cabin design philosophy to the budget room format. CABINN City (near Tivoli) is the best-located property, followed by CABINN Metro near the airport-accessible outer ring. The rooms are genuinely small by any European standard, but the beds are good and the locations are excellent.
For travelers who want a neighborhood base rather than a central tourist-strip location, Nørrebro and Vesterbro offer several guesthouse and small hotel options at prices 20-30% below the city center. The trade-off is Metro access rather than walkability to the main sights — but these neighborhoods contain the restaurants, natural wine bars, and cultural venues that represent Copenhagen at its most current.
The most effective overall budget approach for Copenhagen: book a budget-tier hotel (Wakeup Borgergade, Generator, SP34 on a deal) well in advance, spend the accommodation savings on one exceptional restaurant meal (Bror, Amass, Relæ, or an ambitious New Nordic set menu), use the free cycling infrastructure to cover the sights, and take advantage of Copenhagen's extraordinary free cultural institutions (Statens Museum for Kunst is free; Ny Carlsberg Glyptotek is free on Sundays; the Botanical Garden is free year-round).