Toonsei: Anime & Cartoon Music

Toonsei is the music app for anime fans, cartoon kids, and animation lovers. Stream anime music, cartoon theme songs, and animated movie soundtracks in one player — openings (OPs), endings (EDs), original soundtracks (OSTs), insert songs, intros, outros, and instrumental scores.

Whether you're searching for anime opening songs, anime endings, anime OSTs, cartoon intros, animated film themes, 90s saturday morning cartoons, 2000s afternoon-block intros, or recent viral anime OPs and EDs — Toonsei is the music player built for you.

ANIME MUSIC — EVERY GENRE
• Shonen anime openings and battle anthems
• Shoujo and magical girl ending themes
• Isekai opening songs and adventure themes
• Mecha and seinen anime soundtracks
• Slice of life and romance anime music
• Sports anime openings
• Iyashikei (healing) and dark fantasy OSTs
• Psychological and supernatural anime themes
• Anime films and animated movie scores

CARTOON MUSIC — EVERY DECADE
• 80s cartoon theme songs
• 90s saturday morning cartoon intros
• 2000s cartoon openings
• 2010s and modern cartoon themes
• Adult animation OPs and inserts
• Classic cartoon music and retro intros
• Animated TV series soundtracks

ANIMATED MOVIE MUSIC
• Animated film soundtracks
• Disney-style movie themes
• Animation score music
• Movie opening and ending themes

WHAT YOU GET
• A growing library of anime openings, endings, OPs, EDs, OSTs
• Cartoon theme songs and cartoon intros from every era
• Animated movie soundtracks and instrumental movie scores
• Background playback — keep listening with the app minimized or screen off
• Lightweight music player, no bloat, no autoplay video
• Cover art for every track
• Search anime music or cartoon themes by show, genre, or vibe
• Curated playlists: shonen anthems, magical girl themes, retro cartoon intros, animated film scores
• Smooth scrubbing, gapless transitions, clean now-playing screen
• Dark mode UI built for night listening

BUILT FOR
• Anime fans, otaku, weebs and anime music lovers
• Cartoon kids — 80s, 90s, 2000s, 2010s, current-era — chasing intro nostalgia
• Animation soundtrack collectors and music nerds
• Anyone who replays an anime opening 30 times after one episode
• Late-night listeners, gym-goers, study sessions, commuters
• Fans of japanese anime music and cartoon nostalgia
• Animated movie and animated film fans

WHY TOONSEI
Most music apps scatter anime music and cartoon themes across hundreds of unrelated playlists. Toonsei is dedicated to anime, cartoons, and animated movies. Every track is here because someone, somewhere, replayed it on loop. Anime themes, cartoon intros, animated movie scores — all in one place.

ANIME + CARTOON, EVERY ERA
From 90s anime classics and 80s cartoon openings to recent viral anime OPs and EDs — Toonsei covers animation music across decades. Discover new anime themes, rediscover old cartoon intros, and build the perfect playlist of OPs, EDs, OSTs, and movie scores.

A NOTE ON THE LIBRARY
Toonsei is a fan-built anime and cartoon music app. We respect creators. If you make or own animation music and want your work featured or removed, reach out and we will handle it fast.

GETTING STARTED
1. Open Toonsei
2. Browse anime, cartoons, animated movies, or search a theme you remember
3. Hit play, lock your phone, vibe

EVERY THEME · EVERY WORLD.

Tags: anime music, anime songs, anime opening, anime ending, anime op ed, anime ost, anime soundtrack, anime themes, anime intro, anime music app, anime music player, anime music streaming, anime music background play, japanese anime music, otaku music