TL;DR
Top 56 Anime With The Most Fillers (Statistics & Charts)
While in Naruto there were episodes with part canon and part filler; in One Piece this is not the case. If you want to watch the whole anime skipping all the filler, you are in the right place.
In the anime world, filler is generally a term for episodes of an anime that are not represented in the manga, and that do nothing to advance the overall plot of the series. Most anime are direct animations of a comic (called a manga), and they stick pretty close to the content of their manga.
In order to protect popular franchises from running out of material, studios often created padding to ensure shows like Bleach would not have to go on hiatus or even be canceled. Filler is what happens when an anime either catches up with its source material or is expected to in the near future.
A filler episode is one in which nothing happens to affect the progress of the long-term story arcs or to develop the main characters, and no returning side characters, or other significant persons (other than the main characters), appear.
The first part of Naruto consists of 220 episodes, of which 91 are filler episodes (more than 40%). Luckily, most of the "non-canon" episodes pile up in the final stretch, where there are more than 70 in a row, making it quite easy to dodge them.
You won't miss anything by skipping all the Naruto filler episodes. The only filler in that large span of fillers I legitimately enjoyed was the very last filler adventure, episodes 216-220. These episodes involved the Konoha and Sand ninjas fighting together and just had some fun fights.
Filler in an anime has a wide definition. Fillers are episodes showing content which was not written by the original author or in other words is not ‘canon’. Filler episodes are mostly used in Anime to give time to the Author/script writer/Mangaka to produce more content.
If you mean filler, filler refers to any episode or part of an episode that is not canon (doesn’t directly affect the story) or is not included in the manga. It’s used to pad the run time of a show or to fill in the gaps between manga chapters being published.
Longest filler arc wise. Naruto (not shippuuden) has the longest filler arc with episodes 136 - 219 being fillers, which makes a total of 83 fillers in a row. This filler arc ran from 25 May 2005 to 1 February 2007.
They give a back story on characters in the story. Sometimes fillers can be used to highlight personalities. abilities or environment of the person or place where the story takes place.
They can also answer questions from the main story. This one can cause an argument amongst fans, but…. Sometimes a filler can elaborate on elements from the main story line. You can find things like other uses for weapons, powers or capablities.