Admittedly some of the shows that are billed as 'free', particularly at the Edinburgh Festival Fringe, ask for a donation after the show - but if you don't like them you don't have to put your hand in your pocket.
Meanwhile other events really are free, including a great selection at the Edinburgh International Festival.
And if you're a bit clever about it you can enjoy other highlights without spending a penny - from cinema screenings to art galleries.
Here are 12 of them.
5. Take in the chaos of the Royal Mile
Throughout the Edinburgh Festival Fringe you can enjoy a walk down the Royal Mile where you can catch snippets from many of the shows, alongside plenty of street performers, jugglers, magicians and the dreaded human statues. Just make sure you aren't in a hurry and don't mind having promotional fliers thrust at you by over-enthusiastic performers. The main thing is it's all free - and one of the first stops for families with children. | Getty Images
6. A taste of the Tattoo
The Royal Edinburgh Military Tattoo runs from August 4-26 and is one of the hottest tickets of the summer. It can be expensive though. For a free taster, head to the Royal Mile, just down from the Castle when the show is due to finish at around 11pm. Not only will you get a great view of the fireworks on the esplanade, you'll also have the chance to see some of the cast march away from the venue. | TSPL
7. Catch a film in the great outdoors
The Edinburgh International Film Festival will have a shorter run this year, from August 18-23. Their now-traditional Film Fest in the City will be returning with free outdoor screenings at St Andrew Square in Edinburgh City Centre. Check their website for the latest. | National World
8. Try the PBH Free Fringe
Founded by comedian Peter Buckley Hill (pictured) in 1996, the PBH Free Fringe has a whole programme of shows you don't need to book - just turn up and enjoy. Pick up a programme or pop onto the website and make your pick. As many performers joke though, it's free to get in , but not necessarily to leave. Expect a collection bucket at the end on the understanding that, if you enjoyed it, a £5 donation is reasonable. | Contributed