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Ranked #891
Toaru Majutsu no Index

Toaru Majutsu no Index

Alternative Titles

English: A Certain Magical Index
Synonyms: Toaru Majutsu no Kinsho Mokuroku
Japanese: とある魔術の禁書目録

Information

Type: TV
Episodes: 24
Status: Finished Airing
Aired: Oct 5, 2008 to Mar 19, 2009
Duration: 23 min. per episode
Rating: R - 17+ (violence & profanity)
L represents licensing company

Statistics

Score: 7.771 (scored by 121975 users)
Ranked: #8912
Popularity: #72
Members: 224,301
Favorites: 3,000
1 indicates a weighted score. Please note that 'Not yet aired' titles are excluded.
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.

Recommendations

Anime: Shakugan no Shana
Both are set in a world that is quite normal on the first look (one is a bit more futuristic though) but involve supernatural occurrences, like magicians or people with abnormal powers.
The atmosphere is quite similar, though the plot of Shakugan no Shana is a lot darker/heavier at the start of the show. 
reportRecommended by Mathes
Anime: Strike the Blood
It wouldn't be surprising to see 'Strike the Blood' popped up in people's minds if they had previously seen 'Toaru Majutsu no Index'. In terms of superiority, 'Toaru Majutsu no Index' is the master while 'Strike the Blood' is the apprentice in a world filled with various supernatural beings. Both these series demonstrate that with teamwork and perseverance, battles can be won by either single-handedly overpowering your opponents or having support beside you in the most dire of situations.

'Toaru Majutsu no Index' draws upon different perceptions from various characters not to mention multiple main ones who could form a connection with the viewers  read more 
reportRecommended by ShanaFlame
Anime: Guilty Crown
A boy meets a special girl and finds himself dragged into a world of danger that he previously didn't know existed. Both boys, Touma and Shu, find themselves fighting against an enemy to protect something. Great art, great characters, great music.
Both worlds have a similar feel that draws you in. As they say: "when science and magic meet... They will beat the crap out of you."
Although I'm not sure if there's magic in Guilty Crown yet.  
reportRecommended by sandarikka
Anime: Kurokami The Animation
Random guy who is kind hearted, meets cute girl in random circumstances. Girl happens to be related to some kind of supernatural power, and thus boy gets thrown into a choatic world of fighting, action, complex strange new principles, etc. 
reportRecommended by sugarplumfairy
Anime: Mahouka Koukou no Rettousei
Mahouka Kouka no Rettousei features a fusion of magic and science where magic has been made into a science. In Toaru Majutsu no Index, it features a similar fusion of magic and science, although admittedly its more of a science vs magic thing.

Personally, I find both fun and entertaining to watch because of that combination ^^ 
reportRecommended by Flamyuki
Anime: Dantalian no Shoka
Cute little girl = magic book directory; she's in the care of a male who doesn't know much about 'that sort of thing' but accepts his new lifestyle.

The above is the most importiant element of both series's, however the simalarities end there...
Dantalian features the two amins traveling together, meeting unusual people and solving obscure mysteries.
'Index is an action series which features a case of familiar shounen character types. 
reportRecommended by Queen_Stars
Anime: Zettai Karen Children: The Unlimited - Hyoubu Kyousuke
One of the main things that makes them similar is a whole super power thing.
In both series we have a girl who can teleportate and a guy who can nullify any of those attacks. 
reportRecommended by kitten320
Anime: Mondaiji-tachi ga Isekai kara Kuru Sou Desu yo?
Both main characters have some god-defying powers and throw crazy punches. They both have strength that all other pussy main characters dont have, starting off strong and staying consistent throughout the anime 
reportRecommended by Littaylor
Anime: Bakemonogatari
420 - Both are similar because they feature a reluctant, impotent but extremely invulnerable high school male main character, who continuously finds himself saving (passive) aggressive females who become enamored with him. Though Toaru Majustu never really commits to just one female, and Bakemonogatari is more sexually charged.  
reportRecommended by um_esper
Anime: Asura Cryin'
Both anime deal with the paranormal and magic. There are mysterious societies in both shows that seem to act the same. In addition, the main protagonist in both shows are surrounded by a plethora of girls that seem to have an affinity for him.  
reportRecommended by VK11
Anime: Kore wa Zombie Desu ka?
The main protagonist of Kore wa Zombie Desu ka? seem to have some ability of stealing/disable magic, that remind me of Toaru Majutsu no Index. And both are harem/action anime  
reportRecommended by darkquach
Anime: Durarara!!
Both stories have very big settings.
Both stories feature organizations' conflicts
Both stories have some creepy characters.
Both stories have massive amount of characters. Currently, Index>Durarara!! though. 
reportRecommended by euleri
Anime: ChäoS;HEAd
They both have similar types of violence and magic, and occasional slightly scary sequences that in both animes gives off the same sort of vibe. 
reportRecommended by TsuruyaSonozaki
Anime: Kaze no Stigma
- Both are set in a world that is quite normal on the first look (one is a bit more futuristic though) but involve supernatural occurrences, like magicians or people with abnormal powers.
- Both male protagonists are badass. Touma with his Imagine Breaker and Kazuma with his affinity to fire 
reportRecommended by PirateKingz
Anime: 11eyes
Both are similar with :
- same kind of graphism
- Normal persons who become a person with somes powers.
- Romance " I'll protect you"
- Action & fightings.
 
reportRecommended by cainael
Anime: Zero no Tsukaima
Both involve the main protagonist becoming involved with a woman who comes from a world of magic, who then takes the responcibility of protecting the girl from the dangers to come. 
reportRecommended by RockGamma
Anime: Fullmetal Alchemist
Both series deal with mature teenagers going through a great struggle to achieve some bigger goal, going to particular adventures, fighting for their lives. All the hardships they go through, together with friends and comrades, is in both series almost similar. Sometimes the characters are a bit more childish in FMA², but both series deal with alot of the same elements. 
reportRecommended by Ilyaoh
Anime: Hagure Yuusha no Aesthetica
+Both got cool main male character.
+Both got girls beside them.
+Both got Action, Magic, Sci-Fi, Super Power.
+Both main male characters don't like rules and stuff.
+Both got Hi-Tech Academy city .
+Both got main male character who pisses of others.
 
reportRecommended by TrOjAnHoRsE
Anime: Ryuugajou Nanana no Maizoukin (TV)
A boy ends up living in a school dorm with a certain girl of great pivotal importance to the whole series, whether he likes it or not.
Both takes place in a danger-laced city made up primarily of students being the majority population.
Both protagonists unfortunately frequently find themselves risking their lives in dangerous situations by facing murderous adversaries, for the people they care about--despite claiming or wishing; to be just ordinary high school students.  
reportRecommended by 4kicks
Anime: Campione!: Matsurowanu Kamigami to Kamigoroshi no Maou
Both have elements of magic and gods and a reluctant yet selfless hero. Battles and magic circles galore. 
reportRecommended by bluejeanserenade
Anime: Kekkai Sensen
Protagonists and plot really strook me similar.
Plot of the two anime centers more or less around MCs beating up bad guys in their one-in-the-world city of wonders
> both Leo and Touma have an extremely rare power
> their powers are somehow similar (can no-sell most opponents, but are not OP)
> both have bad luck and end up getting kidnapped, having to fight etc.
> Touma is friends with a bunch of magicians/espers, Leo joins the main punk-beating group.
> are #1 at needing a hospital every arc
The difference is that Touma is more idealistic and brave, Leo being very  read more 
reportRecommended by yskad
Anime: C³
both have many girls
both have kickass women
both the boys have special power
both main characters of the anime have dark past.
both have one tsundere character beside them
 
reportRecommended by TrOjAnHoRsE
Anime: Fate/stay night
The protagonists Shiro and Touma are both all about protecting and saving others regardless of any consequences. They both have limited amount of power but somehow manage to survive many fights against most powerful villains. The character constellation in terms of romances is quite the same, the protagonist is living with his main female compagnion and has another tsundere-type love interest which is more loosely connected. 
reportRecommended by MikeOnHighway61
Anime: Sword Art Online
Both series have supernatural and fantasy elements as "regular" parts of life.
Personally I believe that you either love this series, or you simply can't handle all of the many different elements and sometimes religious motifs used in it. Also, both have romance, action, and a "righteous" MC and both have their cute fanservice moments as well.
 
reportRecommended by Moedera
Anime: Elemental Gelade
Index has a powerful secret, like Reverie from EG, and they look and act similar. The male protagonists both don't know why they're protecting her, and in parallel, an organization also want to protect her from someone who could exploit her power. 
reportRecommended by ManteR
Anime: The Law of Ueki
The main character in each series is a spikey-haired idiot who repeatedly saves people regardless of who they are - friend, enemy, ambiguous. Whoever needs saving at the time, it doesn't matter what their status is, it's no reason to influence whether they should be saved. Both spikey-haired idiots - Touma and Ueki - have a certain view on justice. Ueki lives for following his own justice to the point of challenging opponents who threaten that justice, and Touma repeatedly punches people in the face while lecturing them, and believes in seeing everyone have a happy ending, with no casualties, even if he ends up  read more 
reportRecommended by Numi
Anime: Night Wizard
Both have a relatively normal, academic underachiever high school boy with supernatural abilities having to protect a mysterious girl with a mysterious power who is introduced at the beginning of the show. There are plenty of other secondary characters in the show, some of whom are good and some of whom are evil, who have unique powers of their own. The two shows have an extremely similar feel to them. 
reportRecommended by Dorothea
Anime: Tokyo Ravens
Both are associated with school

Both have to do with Ranks and Levels (Like the top level 5 espers and and 12 divine generals)

Both main characters specailties are punching someone in the face ending the situation 
reportRecommended by Kentaku
Anime: Tokyo ESP
The strong should rule over the weak and evil is always lurking beneath the harmonious cities of the community. However, in the worst outbreak comes good people who strives to do the right thing.

'Tokyo ESP' has a sensational vibe on the environments which is combined with the breathtaking battles and bloodshed that will keep you wanting more. The comprehension leading to the merciless killings of the innocent can not simply be justified as a pure goal and it seems war in inevitable.

'Toaru Majutsu no Index' has a richer and deeper storyline that will strengthen one's attraction to a certain character  read more 
reportRecommended by ShanaFlame
Anime: K
-the city setting with the academy and the working robots are exactly the same

-also alike that the main charas shiro/index have trouble remember things from the past and the magic typ of using the elements and creating Bariers too look pretty much alike

Nekos animal form and spinx could be also the same

the only thing is that toaru majutsu explains the Charas more but more backbone and Feelings into theim and the Fights are more of a View witch is why i Thing

Toaru Majutsu Kicks Ass and K is even soo its alot alike a complete  read more 
reportRecommended by Kannei
Anime: Code Geass: Hangyaku no Lelouch
also that "nobody is evil" feeling :)
Spoiler: in this series, people can be crazy but not evil lol 
reportRecommended by gimeyop
Anime: Darker than Black: Kuro no Keiyakusha
They are completely different in terms of atmosphere, but there are some interesting similarities: Episodic plot focus, Both take place mostly in a huge city and most importantly, both have lots of characters with unique supernatural abilities. 
reportRecommended by IndependentSK
Anime: Zettai Karen Children
Both series involves around espers that are measured by levels that determines their degree of powers.

Both series' main male protagonist has similar personalities and are protective to those he cares about. They often go through lengths to help others in need.

Both series features some super power themes and antagonists who also has their own supernatural abilities.

Both series also contains comedy, drama, and even some romance. 
reportRecommended by Stark700
Anime: Trinity Seven
Both about magic-like abilities,
learning to master them in a school,
MC has the nullification-power

--> Whats the first thing to happen?
Yeah of course, lets make the girls cothes disappear
;) 
reportRecommended by La_Vie
Anime: Suzumiya Haruhi no Yuuutsu
- sci-fi
- both deal with the supernatural
- cast from both series is very similar (character personalities)
- male protagonist that somehow gets involved

I watched Toaru no Index before Haruhi no Yuutsu.
When I was watching Haruhi, during some moments it felt like I was rewatching Toaru no Index.
They are extremely similar, but also have many differences.
If you like one, I strongly suggest you try the other.
 
reportRecommended by Mirorin
Anime: D.Gray-man
The main characters of Toaru Majutsu no Index and D.Gray-man are both similar in the way that they possess unusual powers even in a world where unusual powers are not so unusual (Allen's cursed eye, Touma's right hand). Both of them have similar heroic tendancies, saving people because they need to be saved - Allen with his mission to save both humans akuma, and Touma who will save anyone who even looks like they might cry out "help me". Both series also have a great cast of characters who you quickly feel you are connected to.
Another thing I liked and found similar was the  read more 
reportRecommended by sandarikka
Anime: Mahou Sensou
Both anime have similar genres and it begins with the male lead meeting the female lead who gets him involved into fighting her chasers and he gets involved and starts using magic. 
reportRecommended by Aleron
Anime: Ore no Imouto ga Konnani Kawaii Wake ga Nai
Naturally, Index and Oreimo are both different kind of anime (Oreimo has a realistic comedy plot, Index has a futuristic fantasy plot). But in both series we have a normal young main character (Touma / Kyosuke), a guy who uses to be very quiet and tries to help his friends to any coast, specially women. However, this guy often has to deal with a tsundere girl (Misaka / Kirino), who usually annoys him and doesn't accept his "womanizer" lifestyle. Oh, and both girls tries to hide her childish likes 
reportRecommended by krsp
Anime: Machine-Doll wa Kizutsukanai
The biggest similarity would definitely be the main characters. They are both hospital-bound idiots who rush into things. Both go out of their way for their female companions. Both attend some sort of school where magic, or the likes, is taught. They both have a female with them at all times (Toaru – Index/Machine-doll – Yaya). There is a certain aspect of badassery with both characters as well. 
reportRecommended by DroidChargers
Anime: Vandread
Both male characters are strong and unwilling to give up. Both are set in an area with advanced tech.

Both male leads don't focus on the females around them, but are somehow unable to *escape* them. Either way they are willing to stay and fight for their own and others sakes.  
reportRecommended by WindBreaker
Anime: RDG: Red Data Girl
Both Female Protagonist has a split personality and both male protagonist has to take care of a girl.
Both anime have supernatural elements and with a balance of comedy romance and action.
Both are definitely worth watching!

 
reportRecommended by bloody_Venus55
Anime: Gokukoku no Brynhildr
similarities:
-girls with esper powers.
-guys who was living a peaceful life gets turned upside-down when they met a girl
(Touman and Index, Kuroneko and Ryota).
-sci-fi adventure/action

differences:
-Brynhildr has a dark atmosphere
 
reportRecommended by Jean-chyan
Anime: Shinmai Maou no Testament
- Both have Main Male risking their life to protect Main Female
- Both Main Male have a power to disperse attacks
- Both Main Female have "something" powerful within them 
reportRecommended by SpiritOfMana
Anime: Charlotte
Both series have the setting of ordinary students who possess supernatural powers with a dark story behind the scenes regarding the experiments scientists do only difference is in Charlotte people with powers are not made public while in Toaru they are 
reportRecommended by DaruBarrel
Anime: Toaru Kagaku no Railgun
Both are under the same author, but different main characters and different view points. Both tells of a view point of one of the characters that interacts with each other once in a while and tells what each of the characters know about the hidden secrets that both have no idea of.  
reportRecommended by Choo99
Anime: Sekirei
It's tough being a schoolboy who can't catch a break.

Then suddenly, you find yourself surrounded by women who only want what's best for you.

Touma and Minato are very similar characters. Granted, their fighting abilities are different, but their women pack an equal punch. Standing up for those they love and fighting against an entire city-controlling government as well as some other factions. No shortage of women getting punched in the face either. Equality! 
reportRecommended by AuronPond
Anime: Kyoukai no Kanata
Both are in a universe of complete badasses, while the main character has a "unless" power. 
reportRecommended by Tokisario
Anime: Angel Beats!
both have the same feel. characters are similar and one guy is surrounded by a bunch of girls 
reportRecommended by irishdrunk
Anime: One Piece
- The protagonists Luffy and Touma are both all about protecting and saving others regardless of any consequences. They both have limited amount of power but somehow manage to survive many fights against most powerful villains. They continue to grow with each battle and gain new companions in their journey.
- Both are compromised mostly of comedy, action, and fantasy elements 
reportRecommended by PirateKingz
Anime: Ao no Exorcist
This is similar to To Aru Majutsu No Index because, it has a sort of supernatural feel
and also it has something to do with church. 
reportRecommended by radwayxp
Anime: Gintama
Sounds weird the comparison between a long running comedy anime and a regular short running anime. But both Gintama and Index are light styled series, involved in "modern/futuristic" worlds (Gintama shows a modern Edo Period governed by the Amanto, Index shows the futuristic Academy City secretly controlled by Aleister Crowley).

Both main characters (Gintoki and Touma) seems to not really care about the governing factions (Bakufu /Scince) or the hidden factions (Joui / Magic), but they have allies in both sides, supporting them when they have to fight. Also, both live with a hungry 14 years old loli and her pet (Kagura and Sadaharu  read more 
reportRecommended by krsp
Anime: Black Cat
The world of magicians+espers vs the world of weapons users+Tao users. the character development steps are similar. Both of them are really worth to watch 
reportRecommended by kayTheFalcon
Anime: Mission-E
its Parent story to Toaru Kagaku no Railgun, its mostly same, but Toaru Kagaku no Railgun i about a girl who is one of secondary mane char's in this anime, but Toaru Kagaku no Railgun she is main protagonist, most of the story takes place before Toaru Majutsu no Index story begins.
Some people have powers, some people don't. Toaru Majutsu no Index is more action-oriented, both shows are as much about relationships and people as anything else, this anime also has religion in it, mane char girl named Index some others chars then English Anglican Church & Rome Church, ton't  read more 
reportRecommended by Sugram22
Anime: Code-E
its Parent story to Toaru Kagaku no Railgun, its mostly same, but Toaru Kagaku no Railgun i about a girl who is one of secondary mane char's in this anime, but Toaru Kagaku no Railgun she is main protagonist, most of the story takes place before Toaru Majutsu no Index story begins.
Some people have powers, some people don't. Toaru Majutsu no Index is more action-oriented, both shows are as much about relationships and people as anything else, this anime also has religion in it, mane char girl named Index some others chars then English Anglican Church & Rome Church, ton't want to spoil so  read more 
reportRecommended by Sugram22
Anime: Break Blade 1: Kakusei no Toki
Both have this ideal feeling like "nobody is evil" and stuff like that 
reportRecommended by gimeyop
Anime: Hitsugi no Chaika
A little girl lost and somehow ties her fate with the main character. Both girls with secrets or abilities which make her more powerful and more important than the main character thought. Both main characters act as the girls' body guard and companions. 
reportRecommended by HazelInv
Anime: Kamisama Dolls
Magic, fights, main heroine is a loli, and both have a "crazy" white haired guy who is a villain at first, but in the end, he´s not really what he seems.  
reportRecommended by Orulyon
Anime: X
They both involve different varieties of magic and have magical fights with opposing sides and such. They also both have complex and vague love situations and some episodes / mini arcs specifically for supporting characters. 
reportRecommended by Dynneekx
Anime: Rental Magica
In both of these series the lead boy is made to be with to the lead girl due to reasons revolving around magic. Also,This anime is mostly revoling aroung magic and other abilities. Both male main characters possess a somewhat different power than others... These two are definatley similar  
reportRecommended by Anime-Addicted
Anime: Soul Eater
You'll probably like Toaru Majutsu no Index, if you liked Soul Eater and the other way round.
The plot may not be similiar, but they have similar flawless graphics style, cool and funny characters. (Index sort of reminds me of Patty Thompson at some points =D)
Also action and humour packed.

 
reportRecommended by YumeNoTsuzuki
Anime: Monochrome Factor
i just think it has a similar feel to it, some serious fighting, but also involves a lot of comedy. :)
Weird powers, magic, if you like them, then both of these shows are for you. 
reportRecommended by YumeNoTsuzuki
Anime: Bleach
In both shows, the main protagonist gets a whole new view of the world. Namely through Magic/Alchemy and Death Gods/Restorations. They end up in a difficult plot, which can get themselves or the people they want to protect killed. Both situations get out of control as a higher evil organization starts to meddle.

Both action-packed, with the needed amount of humor and variaty of characters. 
reportRecommended by Ilyaoh
Anime: Chrome Shelled Regios
They both have a lot of action and similar types of magic, and they both are drawn in very similar styles. There's a lot of other little details that make them similar, and it was the first show I thought of while watching it. 
reportRecommended by TsuruyaSonozaki
Anime: Gakuen Alice
Both series revolve around schools that have students with special abilities and show them how to use/control them. As well, it deals with the not so scholastically brilliant main character having nullification powers, and being caught in a love triangle. 
reportRecommended by kevin_video
Anime: Fate/Zero
Magic battles have a big role, in which we get to see several different types of spells and magic users. 
reportRecommended by Bocknoi
Anime: Mobile Suit Gundam I
Both shows feature characters, Touma and Captain Bright, that beat the shit out of whiny bitches with superpowers and can negate said superpowers when their right hands make contact with said whiny bitches. Awwwww yeah. 
reportRecommended by llxwarbirdxll
Anime: Nyan Koi!
The main characters of both shows junpei and touma are extremely similar:
-They are both extremely unlucky (which leads to a lot of humor)
-Both main characters are laid back and fairly "normal" high school students
-They both have unusual abilities that almost always get them into unwanted trouble 
reportRecommended by sspatel_55
Anime: Yokuwakaru Gendaimahou
Both series deal with the innovative and modernized version of magic. In both Gendai Mahou and To Aru Majutsu, different schools of magic are presented, from ancient magic to modern magic.  
reportRecommended by wakka9ca
Anime: Air Gear
Ikki and Touma really look alike with those spiky hair and both have a strong sense of justice. Both also fall under the action genre. The action sequences will really hook you up.  
reportRecommended by jaydel
Anime: Psycho-Pass
Action-packed sci-fi that takes place in a futuristic, self-sufficient city with highly advanced technology, a city that at first glance appears to be an ideal place for people. In Raildex, Academy City is a city full of schools, the haven of the Science Side and the only place where people can develop psychic powers; and in Psycho-Pass, the whole of Japan is a haven for people who want to pursue their happiness with the aid of the Sibyl System. But underneath that wondrous looking exterior is a place with tangible darkness, controversial secrets, and a number of unpleasant truths that would shake the very core  read more 
reportRecommended by Numi
Anime: Tiger & Bunny
Stern Bild and Academy City are both similar in that they are technologically advanced cities home to millions of people, a number of whom have special powers. In Index they are students going though the Power Curriculum Program in order to become espers artificially. In T&B they are normal citizens with a certain genetic mutation that gives them special powers; several of these citizens use their powers for good and become Heroes. In the case of both series, those with powers can turn toward good or evil depending on their situation and beliefs, and at times are considered by others to be monstrous due to  read more 
reportRecommended by Numi
Anime: Casshern Sins
Although both series are placed into total different settings, the eerie vibes, the fights and certain characters are pretty similar in a good way. The plot's and story develop on a different way tho' (as they are different), but they can be watch afters seeing one of the other. 
reportRecommended by Ilyaoh
Anime: Fullmetal Alchemist: Brotherhood
Both series deal with mature teenagers going through a great struggle to achieve some bigger goal, going to particular adventures, and fighting for their lives. All the hardships they go through, together with friends and comrades, are in both series almost similar. Sometimes the characters are a bit more childish in FMA:B, but both series deal with a lot of the same elements. 
reportRecommended by Ilyaoh
Anime: ef: A Tale of Memories.
Disappearing memories...
 
reportRecommended by Cashdax
Anime: Needless
It seems me that esper abilities in Index/Railgun are very similar to Needless's abilities here. And Touma's "Imagine Breaker" is as unique as Adam's "Memorisation". 
reportRecommended by Hinacle
Anime: Dragon Crisis!
Kinda similar awesome art and animation. There are levels(breaker) that we didn't know. There are some cute lolis like Rose and Misaka in To Aru Majutsu No İndex.  
reportRecommended by SineBirYan
Anime: GetBackers
Ban mido in GetBackers is kid of the same person in a way he uses his left arm to use make a move called snake bite and Touma Kamijou uses a movie that destroys magic and the are preformed in the same way and people have natural ability's like a girl has lighting ability exactly like Ginji Amano in GetBackers

The same ability's but a hole different story and show  
reportRecommended by EminG
Anime: Moshidora
To Aru Majutsu No Index ( When Magic And Science Cross Path )
But, Moshidora ( When Business And Sport Cross Path )  
reportRecommended by --Sunclaudius
Anime: Yumekui Merry
You can say Merry is very similar to Index, both stubborn at first. Not willing to let anyone help them out, but after a certain incident, the boy promises the girl to help no matter what. Little by little, the boy gets drag into a different world of magic or dream.

It leans more toward the action/ adventure section than romance. But i can say one thing, it will keep you watching it from beginning to end b/c it is very interesting in term of the plot. 
reportRecommended by Lamii
Anime: Zero no Tsukaima F
Both have a similar plot about magicians in a significant magic wise. Even the clothes of a few pristess are the same on each one, but at Zero no Tsukaima it's like a tribute to To Aru Majutsu no Index. 
reportRecommended by Kouzuki
Anime: Hidan no Aria
Similar main characters in the guy and girl teaming up to defeat the greater evil. Also from the same company, so there are some of the same plot-driven ideas in both titles. 
reportRecommended by pmxperience
Anime: Hayate no Gotoku!!
Somehow, Hayate, and Kamjio Touma seem to have more in common. They both seem to get themselves into difficult, and usually awkward situations. The end result is either laughs, or some action scene, which are both present in both animes. This can recommendation can also be towards the first season, as well.

For a more simple similarity, they're both produced by JC Staff (Not the first season). 
reportRecommended by Skyrine
Anime: Baka to Test to Shoukanjuu
They both involve a school separating students into rankings of sorts, and they both include action scenes and romance undertones. 
reportRecommended by Nanodesu
Anime: Shakugan no Shana II (Second)
Both give off a very similar vibe. Both have very intriguing plots. The art in both is similar especially during action scenes due to the many special effects used. Both have pretty much the same genres except To Aru Majutsu no Index has more comedy. 
reportRecommended by 5layer
Anime: Ichiban Ushiro no Daimaou
Magic and Hi-Tech, Academy city. Lots of cute girls ^_^ ... 
reportRecommended by zen-hikka
Anime: Kishin Houkou Demonbane (2006)
Nun loli Index-tan has forbidden knowledge contained in "103,000" magic grimoires. Loli character Al Azif from Demonbane is a book. Literally. Oh and there's also magic in both and lots of pew pew. 
reportRecommended by Alexstratz
Anime: Nabari no Ou
Both interesting "shounens" with similar art style, great soundtrack, many action and battles with super powers, produced by the same studio. 
reportRecommended by Cafer
Anime: Kamisama no Memochou
Their not really about the same thing but the but This and Toaru Majutsu no Index both have the same Animation and art work 
reportRecommended by freezeheart
Anime: Accel World
Similarities -
> They both have generous doses of action and humour.
> They both have interesting variety in action.
> They both have elements of typical school anime.

Differences -
> The plot settings slightly differ. Accel World is set in a school/VR MMORPG background and Toaru Majutsu no Index in a super-power loaded city.
> The main characters of the anime differ in their styles of thinking.

In short, they are similar enough for you to enjoy both and distinct enough for you to not find one to be a rehash of the other. 
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