What Anime Has the Most Filler?

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If you want the single biggest offender, Detective Conan has the most filler of any major anime, with well over 40% of its 1,100-plus episodes made up of anime-original content. But the question of what anime has the most filler usually points to the long-running shounen giants — Naruto, Bleach, and One Piece — because their filler arcs are the most infamous and the most often skipped by fans.

Filler exists because weekly anime can outpace the manga it adapts, forcing studios like Studio Pierrot and Toei Animation to invent non-canon episodes. Below, you’ll get a clear ranking by filler percentage, an explanation of why filler happens, which series are worst, and how to skip filler without missing canon. Whether you’re starting Naruto or catching up on One Piece, this is the breakdown you need.

Table of Contents

What Anime Has the Most Filler Overall?

The anime with the most filler is Detective Conan (Case Closed), where roughly 40–45% of its 1,100-plus episodes are filler. By sheer episode count, no series comes close — that’s hundreds of non-canon cases. Among popular shounen, Naruto and Naruto Shippuden combined sit near 40–43% filler, making the Naruto franchise the most notorious for padding.

Percentage and raw count tell different stories, though. One Piece has a low filler percentage (around 10–12%) but is so long that it still contains over 100 filler episodes. So “most filler” depends on whether you mean the highest filler percentage or the largest total number of anime-original episodes.

Why Do Anime Have Filler Episodes?

Filler episodes are anime-original content not based on the source manga, created to keep a weekly series from catching up to the chapters being published. Because a manga like One Piece releases roughly one chapter a week while an anime episode can burn through multiple chapters, the adaptation will overtake its source unless the studio slows down.

A few reasons filler exists across the medium:

  • Pacing the manga — studios add anime-original arcs so the show doesn’t outrun Eiichiro Oda or Masashi Kishimoto’s ongoing serialization.
  • Production scheduling — long-running shows can’t pause, so filler buys animators time during demanding canon arcs.
  • Commercial momentum — popular series like Bleach and Naruto keep airing weekly to retain ad revenue and merchandise sales.
  • Standalone stories — some filler, like Detective Conan’s one-off mysteries, fits the episodic format naturally.

The trade-off is that filler episodes rarely affect the main plot, which is why fans rely on a fillerlist to skip them.

The Anime With the Most Filler, Ranked by Percentage

Here’s the ranking of the anime with the most filler, judged primarily by filler percentage with episode counts for context. Figures are widely cited community estimates and shift as long-running shows continue.

  1. Detective Conan (Case Closed) — Around 40–45% filler. With 1,100-plus episodes from Tokyo Movie Shinsha/TMS, it has the largest raw number of filler episodes in anime, driven by countless original mystery cases.
  2. Naruto + Naruto Shippuden — Roughly 40–43% filler combined. Naruto Shippuden alone is infamous, with long stretches like the “Twelve Guardian Ninja” and post-war filler arcs from Studio Pierrot.
  3. Bleach (original 2004 run) — About 45% filler, the highest percentage among the “Big Three.” Arcs like the Bount and Zanpakuto Rebellion are pure anime-original. (The 2022 Thousand-Year Blood War reboot is filler-free.)
  4. Fairy Tail — Around 30–35% filler across its run, with frequent anime-original episodes inserted by A-1 Pictures and Bridge.
  5. Yu-Gi-Oh! Duel Monsters — Roughly 30% filler, including the entire Virtual World and Waking the Dragons arcs not in the manga.
  6. Dragon Ball Z — About 20–25% filler, famous for stretched-out moments and original episodes like Goku and Piccolo’s driving-test detour.
  7. One Piece — Around 10–12% filler — a low percentage, but with 1,100-plus episodes it still totals over 100 non-canon episodes from Toei Animation.

Honorable mentions: Boruto: Naruto Next Generations, Black Clover, and Hunter x Hunter (1999) all carry meaningful filler, while Dragon Ball Super keeps it minimal.

Which Long-Running Anime Have the Most Filler Episodes?

When fans ask what anime has the most filler, they’re usually thinking about the marathon series that have aired for a decade or more. The pattern is consistent: the longer an anime runs alongside an ongoing manga, the more filler it accumulates.

Naruto Shippuden is the textbook case. Studio Pierrot padded the back half heavily, with entire arcs of original content bridging gaps before the manga’s finale. Bleach’s original run leaned even harder on percentage, inserting multiple full filler arcs — which is exactly why Tite Kubo’s Thousand-Year Blood War reboot deliberately stuck to canon.

One Piece is the interesting outlier. Despite Toei Animation producing it since 1999, Eiichiro Oda’s manga has stayed far enough ahead that filler is relatively rare, clustered into short arcs like G-8 (Navarone) and the Ice Hunter arc. Detective Conan, by contrast, embraces filler as a feature — its episodic mystery format means original cases feel native rather than like padding.

is the One Piece anime worth watching

How to Skip Filler and Read the Source Instead

The cleanest way to avoid filler entirely is to read the manga, which contains only canon content with no anime-original padding. Many fans switch to the source after a series like Naruto or Bleach gets bogged down in filler episodes, then return to the anime for the arcs worth watching animated.

If you’d rather read these shounen manga in English, SnowMTL offers AI-powered manga translation at snowmtl.org, so you can follow series like One Piece and Detective Conan straight from the source without sitting through a single filler episode.

For anime watchers who still want to follow along on screen, community resources like Anime Filler List publish per-episode breakdowns labeling each as canon, filler, or mixed — making it easy to skip the non-canon stretches and jump back into the main story.

best order to watch the Naruto series

Frequently Asked Questions About Anime Filler

What anime has the most filler? Detective Conan has the most filler by raw episode count, with 40–45% of its 1,100-plus episodes being anime-original. Among popular shounen, the Naruto franchise has the most filler, sitting around 40–43% across Naruto and Naruto Shippuden combined.

Why do anime have filler episodes? Filler exists so a weekly anime doesn’t catch up to and overtake the manga it adapts. Studios like Studio Pierrot and Toei Animation create anime-original episodes to pace the show, buy production time, and keep long-running series airing without pausing.

Does One Piece have a lot of filler? One Piece has a low filler percentage, around 10–12%, because Eiichiro Oda’s manga has stayed well ahead of the anime. However, because the series has over 1,100 episodes, that still adds up to more than 100 filler episodes overall.

How much filler does Naruto have? Across Naruto and Naruto Shippuden, roughly 40–43% of episodes are filler. Naruto Shippuden is especially infamous for long anime-original arcs added by Studio Pierrot to avoid overtaking the manga.

What is the difference between filler and canon? Canon episodes adapt the original manga and advance the main plot, while filler episodes are anime-original content not found in the source material. Filler rarely affects the overall story, which is why many fans skip it using a filler list.

Can I skip filler episodes without missing anything? In most cases, yes. Filler episodes are designed to be non-essential and rarely impact the canon storyline. The safest way to avoid filler entirely is to read the manga, which contains only canon content.

Conclusion

To settle what anime has the most filler: Detective Conan leads by raw episode count at 40–45% filler, while the Naruto franchise tops the popular shounen list at around 40–43%, and Bleach’s original run holds the highest percentage among the Big Three. One Piece, despite its length, stays relatively filler-light thanks to a fast-moving manga. If you want to skip the padding entirely, read the source — see our guide on the best order to watch the Naruto series. Bookmark this page — we update it as long-running anime keep adding episodes.

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