One Piecehas been an ever-present figure in theWeekly Shonen Jumpfor the last 25 years. The most astonishing thing about the series is that it has continued to attract fans, which over time has helped it to become the highest-selling manga series in the world.
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Another key reason behind the series' popularity is the anime adaptation, which started airing in 1999. As many people prefer anime to manga, the adaptation has had to maintain high standards. While the animation quality has not been highly consistent, the different openings have ensured that the fans are always excited about a new episode. With over a thousand episodes to its name,One Piecehas numerous openings, but there is a disparity in the quality.
Updated June 21, 2025, by Suzail Ahmad:One of the few advantages of One Piece being a weekly anime is that fans are able to enjoy new episodes of their beloved series every week unless there is a break for some reason. Due to anime consistently releasing new episodes, the openings have to be changed from time to time. While it may not seem like it, a lot of effort is needed to create a good opening. The song is arguably the most important part, so it has to be good. Next, the visuals have to match the song. If it’s an upbeat song with glum visuals, it just won’t work. The bestOne Piece openingshave managed to blend the two things immaculately, setting them apart from the others.
14Hard Knock Days (OP 18)
Hard Knock Days is the eighteenth opening of theOne Pieceanime. It was used for 60 episodes, starting with episode 687, which featured Sabo’s battle with Admiral Fujitora. The opening is fast-paced, and it startswith Luffy using a Gear Third attackto break out of a Marine base.
As the song continues, the Straw Hats can be seen doing some shopping and then spending time on the Thousand Sunny. The opening also features all of Luffy’s allies from the Dressrosa arc. Sabo features in the opening too and is shown using the Mera Mera no Mi with Ace in the background.
13Believe (OP 2)
Believe is one of the fewOne Pieceopenings that one can’t help but sing along to. It has been performed by Folder 5, and it is the second opening of theOne Pieceanime.
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It has the perfect combination of highs and lows, which goes hand in hand with the visuals. The opening includes all the characters from the series until the Loguetown arc. The Straw Hats also get their own small montages, which is always nice to see.
12Kokoro no Chizu (OP 5)
Kokoro no Chizu kicks off with some high-spirited vocals from the singer before eventually settling down and becoming smoother. The opening was added to the anime in episode 207, which is the first episode of the Long Ring Long Island arc.
Kokoro no Chizu starts with the Straw Hats falling from the sky and safely landing on the Going Merry. The ship sails to a nearby island, and the Straw Hats get off and build a campfire. The opening also features some of the characters from the Water 7 arc.
11Hikari E (OP 3)
Many viewers strongly agree that the first fewOne Pieceopenings were all top quality. The run of consecutive smash hits will forever be remembered by the fans. Hikari E also featured in this run, as it was the third opening in the anime.
Hikari E starts with an instrumental solo with the narrator doing a voiceover. The singing starts with an energetic tone, but as it continues, it becomes mellow. The opening mainly focuses on the Straw Hats as they travel onboard the Going Merry.
10DREAMIN' ON (OP 23)
DREAMIN' ON is another visual masterpiece thatmade the Wano Country arceven better. It consists of a very pleasing melody that perfectly highlights the various contrasting shots in the opening.
The opening includes multiple images of legendary characters, such as Kozuki Oden, Whitebeard, and Gol D. Roger. The ending is capped by Luffy charging toward Kaido, the main antagonist of the arc.
9Super Powers (OP 21)
Super Powers is one of the few openings that managed to receive more than one variation. The first variation was introduced in episode 856, and it lasted until episode 877. In this variation, Katakuri’s mouth, Carrot’s sulong, Big Mom’s berserk form, and Luffy’s Snakeman were all shadowed.
The second variation keeps some older scenes, but it also adds some new shots. The newer shots include Luffy walking, and he’s covered on the left side by the princesses that he has met so far, while the right side is occupied by Sabo and Shanks. The other noteworthy additions arethe members of the Revolutionary Armyand the Five Elders bowing down. The song itself fits both variations perfectly. It has a slow buildup to an energetic verse, which makes it very enjoyable.
8OVER THE TOP (OP 22)
OVER THE TOP became the new opening of theOne Pieceanime just after a couple of episodes of Wano Country were released. It has a case of being the most visually pleasing opening to date as it has numerous cuts which show the country of Wano in its full glory.
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The OP consists of several shots of the Straw Hat Pirates,the Beasts Pirates, and the Scabbards. However, the best bit is the epic teaser of Luffy vs. Kaido.
7Kaze wo Sagashite (OP 12)
Kaze wo Sagashite is the 12th opening in the anime. When the opening was added to the anime, everyone was under the impression that the anime was heading towards a rather happy ending to an otherwise grim arc. With this OP, the anime successfully managed to fool the viewers.
It is divided into three parts with the first two being rather joyous, and the final part is filled with spoilers about the Marineford arc.
6BON VOYAGE (OP 4)
BON VOYAGE is an exquisite opening that marvelously captures the essence of being on a beach. The opening takes the fans on a fascinating journey, which is the main reason why this opening has managed to stay relevant all these years.
BON VOYAGE might be upbeat, but it also offers a few scenes filled with emotions, and it shows the rough past of each Straw Hat. It’s this added emotion that makes it one of the bestOne Pieceopenings to date.
5We Go! (OP 15)
It was the first opening after the time-skip, and it resembles the iconic We Are! in a few ways, but that doesn’t stop it from being an exciting and lovable opening. Like We Are!, the opening was sung by Hiroshi Kitadani. The opening offers the same excitement and thrill as the first OP.
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The narrator talks about the Great Age of Pirates, and then it switches focus to Luffy on the Going Merry and all the other Straw Hats in their new costumes.
