The manga can currently be broken down into 11 parts, following the feats of the Straw Hat Pirates: the East Blue Saga, the Arabasta Saga, the Sky Island Saga, the Water 7 Saga, the Thriller Bark Saga, the Summit War Saga, the Fish-Man Island Saga, the Dressrosa Saga, the Whole Cake Island Saga, the Wano Country Saga, ...
The Wano Country arc is the longest one in the anime so far, with over 110 episodes already and the end being nowhere in sight. Like most One Piece arcs after the time skip, it suffers from pacing issues as well and, at times, draws the content from the manga out a little too much.
The Long Ring Long Land Arc is the fourteenth story arc of the manga and anime One Piece, and the first story arc of the Water 7 Saga, continuing from the Skypiea Arc and Sky Island Saga.
"Roger and Rayleigh - The Pirate King and His Right Hand" is the 400th episode of the One Piece anime.
One Piece Volume 1000 "Z" is a free volume distributed to One Piece Film: Z's attendees. It focuses on Film Z, Episode of Luffy, and Z's Ambition Arc's characters, story, sketches, and backstage, as well as Z's history.
1/10 Reverse Mountain (2 Episodes)
It is the shortest canon arc in the series so far, comprising only two episodes.
The G-8 Arc.
One Piece is finally entering its final saga after the conclusion of the Wano Country arc and with Oda planning to end the series within the next three years, it is time for the story to focus on the most important of events.
This is the last episode of the Silver Mine Arc.
Nico Robin, The Woman Who Bears Darkness" is the 240th episode of the One Piece anime.
The Incarnation of Asura Revealed by His Soul" is the 300th episode of the One Piece anime.
2/12 Dressrosa (One Piece)
Dressrosa was widely known as the longest anime arc in all of history...
Out of all the One Piece story arcs, most fans agree that the Enies Lobby arc is by far the best. It features several memorable moments such as Nico Robin's tragic backstory, Franky destroying the blueprints for the Ancient Weapon Pluton, and even introduces Luffy's Gear Second and Third transformations.
The G 8 arc is almost universally accepted as the best filler arc of One Piece. G-8 follows the same structure as almost every other filler arc from the series, however, what it does differently is that the story is also shown from the side of the Marines.
The Dressrosa Arc is the second-longest in the series. According to fans, it stands above the rest. With over 100 episodes, this arc had plenty of time to explore and flesh out any character or subplot.
This is the first episode of the Jaya Arc.
The Ice Hunter Arc, sometimes referred to as the Lovely Land Arc, is the eighth filler arc in the One Piece anime. It ran from episodes 326-335.
19 (after timeskip)
Water 7 Saga
The filler arcs within this saga are the Ocean's Dream Arc and Foxy's Return Arc.