Other than Thor and Odin, certain other individuals have proven worthy of lifting Mjolnir in the primary continuity: Roger "Red" Norvell (a deliberate ruse by Odin) Beta Ray Bill. Buri (also known as Tiwaz, Thor's great-grandfather)
Mjolnir is a hammer, and was enchanted by Thor's father, Odin, so that only those the hammer deemed "worthy" are capable of wielding or even lifting it. Stormbreaker is an axe, and although it does not have such a worthiness enchantment, its power is such that a mere mortal attempting to wield it would be driven mad.
As a result, he cast an enchantment on Mjolnir to prevent anyone from wielding it. Only those who are deemed worthy can bypass Odin's enchantment. Considering that the enchantment was initially cast by Odin, one explanation is that it isn't Mjolnir, but rather Odin who determines worthiness.
Thor's hammer Mjolnir was defined by the fact that only the 'worthy' could lift it – so basically no-one except the god of thunder (and Vision, for some reason). But when it comes to the weapon's replacement, Stormbreaker – which Thor forges in Avengers: Infinity War – Groot is able to lift it too.
In the original Norse mythology, there is no specific charm that prevents someone from lifting Mjolnir, but it is said to have been so heavy that only Thor could easily wield it as a weapon, with 4 giants or the combined strength of his two sons Modi and Magni being required to even lift it in some writings.
Other Marvel characters have lifted Mjolnir not through worthiness but through technicalities such as absorbing Thor's powers, including the Air-Walker, Awesome Android, Magneto, Rogue, Wonder Man, and Doctor Doom.
Odin himself can also alter the enchantment, allowing somebody the hammer wouldn't naturally deem worthy to use it, or preventing somebody, even Thor, from lifting it.
Many viewers have pointed out that Thanos was able to lift Stormbreaker without a problem, but this is because the ax isn't enchanted as Mjolnir is. Others believe Thanos lifted Mjolnir (although briefly) and have even argued that he would be worthy of doing so.
Overall, though, Stormbreaker seems to have the edge over Mjolnir once again. Strong enough to open the Bifrost, reach Eternity, and manipulate storms the same way Mjolnir can, Stormbreaker's powers are greater than that of the mythical hammer.
If fans wait to see Peter Parker lift and use it in MCU, they may be disappointed. Despite his strong moral sensibility and strength of character, Peter lacks the ruthlessness that destroys all evil. For this slight defect in character, Mjolnir will never find this Spider-Man worthy of it.
The short answer is yes, Spider-Man is able to lift Mjolnir but it's not that simple. While Spider-Man can lift Mjolnir, Peter Parker cannot. That's because it's Miguel O'Hara's Spider-Man 2099 that can lift Mjolnir as he does in 1998's 2099: Manifest Destiny one-shot.
And Mathaudhu can cite documentary sources to back him up. For example, Marvel – which publishes the Thor comics – issued a “Thor's Hammer” trading card in 1991 that states Mjolnir is made of Uru and weighs precisely 42.3 pounds. That's lighter than a herd of 300 billion mice, much less a herd of 300 billion elephants.
Can Spider Man lift Thor's axe? While Captain America and Captain Marvel have briefly lifted the weapon in different situations, the friendly neighborhood Spider-Man is yet to do so. Interestingly, this puts him in line with the other superheroes, such as Iron Man and the Hulk, who can't lift Thor's legendary hammer.
How did Thanos manage to lift Stormbreaker? Thanos was able to lift Stormbreaker because the axe doesn't have worthiness enchantment as Mjlolnir does. Mjolnir is specific when it comes to the wielder's might since the only prerequisite to wielding is that the wielder is “worthy” of its might.
During a Vudu Viewing Party for Avengers: Infinity War, co-directors Anthony and Joe Russo revealed a key difference between Thor's hammer Mjolnir and his new ax Stormbreaker: the latter doesn't require worthiness. That's why Groot was able to lift the ax, not because he was worthy but because he didn't need to be.
So, if Superman were to happen to come across Thor's legendary weapon — which famously is immovable to those unworthy of its might — could he lift it? Well, the answer to that question is simple: he can, and he has.
Fat Thor's depression led to his mental and physical decline, which is why he was less powerful in Avengers Endgame than in Ragnarok and Infinity War.
As per a theory shared by Screenrant, the answer might be two-fold – 1) Captain America is a super-soldier, and 2) he possesses the strength of Thor (hence he's able to hold Mjolnir).
In Marvel Comics, Doctor Strange has been able to lift the hammer off the ground in an immensely strenuous feat of telekinesis, but this did not grant him the power of Thor that Mjolnir contains, acting as a stark reminder that all true holders of Mjolnir must be chosen.
Notably, many of Thor's greatest feats have to do with lifting or throwing entire planets out of orbit (or objects that weigh as much as planets). He lifted the World Serpent – a creature weighing trillions of tons, using only his strength and a magic fishing rod.
How Can Captain America Lift Thor's Hammer? Simple: Steve Rogers is worthy. The inscription on Mjolnir reads “Whosoever holds this hammer, if they be worthy, shall possess the power of Thor.” It doesn't matter how strong you are, if you aren't worthy, you can't lift Thor's hammer, no matter how hard you try.
There are few people that Hela is not more powerful than. She was very easily able to defeat Thor (Chris Hemsworth), who left her to be destroyed by Surtur along with the entirety of Asgard because he couldn't defeat her himself.
If you are talking about movies, Old Odin can be defeated by Surtur, Dormammu, Hela, Strange, Ancient One and IW Thanos. But Odin in his prime was undefeated, unchallenged throughout the nine realms and beyond. This is been confirmed by Hela, Loki, Frigga, Laufey and Thor.
Thor, the god of Thunder, was undoubtedly the most powerful member of the original Avengers. His power continues to grow in the Marvel Cinematic Universe.