No, a real lightsaber like the ones in Star Wars does not exist, but hobby lightsabers do, and so does lightsaber dueling as a sport. You cannot buy a blade that cuts through a blast door. You can buy a very good-looking replica that lights up, makes the sounds, and holds up to a friendly duel.
Why can't we build a real lightsaber?
It comes down to two big problems.
Light does not behave like a solid blade. Beams of light do not push against each other, so two crossed beams would simply pass through one another instead of clashing. Nothing in known physics makes a beam of light stop at a set length either. That is a lot of trouble for something that is supposed to end politely after three feet.
Plasma would need containment. A plasma blade is the other popular idea, since plasma is real and shows up in things like neon signs and plasma cutters. Shaping it into a stable blade would need a magnetic containment field of a kind we do not have in a handheld form. A 2019 physics paper on lightsabers concludes that it is not ruled out by the laws of physics, but is very implausible given the intensity and energy required.
So the physicists' verdict is roughly: not impossible in principle, extremely unlikely in practice, and you should not hold your breath.
What counts as a real lightsaber today?
The real versions are hobby lightsabers: replica hilts with an LED-lit blade, sound, and a rechargeable battery. They do not generate heat to cut anything, and they will not burn through your front door, which is a relief to every parent reading this. Ours use a polycarbonate blade, and many models are available in two versions:
- Baselit: the blade is lit from the hilt end. It is built for dueling and impact.
- Neopixel: LEDs run the length of the blade for smoother effects. It is best for display and light contact.
Not sure which you need? Read our guide to the best lightsaber for dueling, or browse our replica lightsabers.
Is lightsaber dueling a real sport?
Yes. In 2019, the French Fencing Federation officially recognized lightsaber dueling as a competitive sport, putting it alongside traditional fencing. Fighters wear protective gear, and matches are short and scored in a taped circle. It is proof that the best part of the movies translates fine to real life, as long as everyone wears a mask.
If you want to try it yourself, start with our safe dueling tips, and learn the styles in our guide to the seven lightsaber forms.
So can you give a kid a real lightsaber?
You can give them a real hobby lightsaber, but not a movie-accurate plasma one, which is a good thing. Our sabers are hobby-grade, not toys, and we do not publish a numeric age rating, so use your judgment, add protective gear, and supervise. Our Lightsabers for Kids collection is described as lightweight and designed for younger users, and the Sidekick is the model in it. For younger kids, a toy lightsaber from a toy aisle is a perfectly good choice, and our guide to toy vs hobby lightsabers can help you decide. If the goal is mostly to show a saber off, our display and cosplay lightsabers are the better category to browse.
Real lightsaber FAQ
Are lightsabers real?
Not as depicted in Star Wars. Replica and hobby lightsabers are real, and lightsaber dueling is a real sport.
Can you build a real lightsaber?
You cannot build one that works like the movies. You can build or buy a hobby lightsaber with an LED blade, sound effects and a rechargeable battery.
Can a lightsaber cut things?
In the story, yes. Hobby lightsabers cannot, because they use an LED-lit blade and not plasma.
How hot is a lightsaber?
In the story, the blade is described as plasma and cuts through most things. A hobby lightsaber does not generate cutting heat.
Is lightsaber dueling a sport?
Yes. France's fencing federation recognized it as an official competitive sport in 2019.
Do real lightsabers use kyber crystals?
No. In the movies kyber crystals power the blade. In hobby sabers, LEDs and a battery do the job. Read about kyber crystals in the lore.
