State of Anime Filler

We have classified 12,049 episodes across 107 anime series, cross-checking every label against multiple independent sources.

• 1,922 episodes (16%) are verified filler — skippable without missing the story.
• 1,117 episodes are mixed: part canon, part filler.
• 83 episodes are anime canon: original endings that conclude the anime's story, and original arcs later episodes build on — plot-bearing without adapting the manga.
• 621 episodes are currently disputed between sources and shown as under review rather than guessed.
• The most filler-heavy covered series is Sailor Moon at 46% verified filler.

Every classification starts from public episode guides, wikis, and manga-chapter mappings. A single source is never enough for a verified label, disagreements stay visible, and nothing uncertain is ever labeled filler. How we classify.