Similar to its parent show ''Literature/ACertainMagicalIndex'', ''Manga/ACertainScientificRailgun'' will be recapped by story arcs, taking note of the differences between adaptations.

'''Warning!''' Recap pages do not get spoiler tags. All current and prior spoilers on these pages will be '''unmarked'''. (Forward-looking spoilers ''may'' be marked as a courtesy but this is not guaranteed.)

!Original Series
[[index]]
# [[Recap/ACertainScientificRailgunArc1LevelUpper Level Upper]]
# [[Recap/ACertainScientificRailgunArc2BigSpider Big Spider]] *
# [[Recap/ACertainScientificRailgunArc3Poltergeist Poltergeist]] *
# [[Recap/ACertainScientificRailgunArc4Sisters Sisters]]
# [[Recap/ACertainScientificRailgunArc5SilentParty Silent Party]] *
# [[Recap/ACertainScientificRailgunArc6DaihaseiFestival Daihasei Festival]]
# [[Recap/ACertainScientificRailgunArc7DreamRanker Dream Ranker]]
# [[Recap/ACertainScientificRailgunArc8Jailbreaker Jailbreaker]]
# [[Recap/ACertainScientificRailgunArc9FirstYear First Year]]

''*  Anime-exclusive arc''

!Side Stories
The chronological order of these side stories in relation with the original series and with each other is not always clear.
# [[Recap/ACertainScientificRailgunSS1LiberalArtsCity Volume SS1: Liberal Arts City]]
# [[Recap/ACertainScientificRailgunSS2AbilityDemonstrationTrip Volume SS2: Ability Demonstration Trip]] [[note]](also known as "Shopping Mall Demonstration")[[/note]]
# [[Recap/ACertainScientificRailgunSSACertainVendingMachinesProofOfExistence A Certain Vending Machine's Proof of Existence]]
# [[Recap/ACertainScientificRailgunSSASuperfluousStory A Superfluous Story, or A Certain Incident's End]]
# [[Recap/ACertainScientificRailgunSSColdGame Cold Game]]
# [[Recap/ACertainScientificRailgunSS3Stativarius Volume SS3: Stativarius]]
[[foldercontrol]]
!Anime

[[folder:A Certain Scientific Railgun]]
!!!Level Upper Arc
* Episode 1 [[Recap/ACertainScientificRailgunEp1Electromaster Electromaster]]
* Episode 2 [[Recap/ACertainScientificRailgunEp2WhenWorkingUnderAHotSun When Working Under a Hot Sun, Rehydration is Essential]]
* Episode 3 [[Recap/ACertainScientificRailgunEp3TokiwadaiIsTargeted Tokiwadai is Targeted]]
* Episode 4 [[Recap/ACertainScientificRailgunEp4UrbanLegends Urban Legends]]
* Episode 5 [[Recap/ACertainScientificRailgunEp5ACertainPairOfNewTrainees A Certain Pair of New Trainees]]
* Episode 6 [[Recap/ACertainScientificRailgunEp6EveryoneIsProactive Everyone is Proactive When It Comes to This]]
* Episode 7 [[Recap/ACertainScientificRailgunEp7AbilitiesAndPowers Abilities and Powers]]
* Episode 8 [[Recap/ACertainScientificRailgunEp8LevelUpper Level Upper]]
* Episode 9 [[Recap/ACertainScientificRailgunEp9MajorityReport Majority Report]]
* Episode 10 [[Recap/ACertainScientificRailgunEp10SilentMajority Silent Majority]]
* Episode 11 [[Recap/ACertainScientificRailgunEp11KiyamaSensei Kiyama-sensei]]
* Episode 12 [[Recap/ACertainScientificRailgunEp12AIMBurst AIM Burst]]
* Episode 13 [[Recap/ACertainScientificRailgunEp13ABikiniDividesTheEyeline A Bikini Divides the Eyeline Between Top and Bottom, but a One-Piece Shows Off the Figure so They Only Flatter the Slender]]
* Episode 14 [[Recap/ACertainScientificRailgunEp14SpecialWorkshop Special Workshop]]
!!!Big Spider Arc (Anime-Only)
* Episode 15 [[Recap/ACertainScientificRailgunEp15SkillOut Skill Out]]
* Episode 16 [[Recap/ACertainScientificRailgunEp16AcademyCity Academy City]]
!!!Poltergeist Arc (Anime-Only)
* Episode 17 [[Recap/ACertainScientificRailgunEp17TsuzurisSummerVacation Tsuzuri's Summer Vacation]]
* Episode 18 [[Recap/ACertainScientificRailgunEp18AsunaroPark Asunaro Park]]
* Episode 19 [[Recap/ACertainScientificRailgunEp19MidsummerFestival Midsummer Festival]]
* Episode 20 [[Recap/ACertainScientificRailgunEp20Poltergeist Poltergeist]]
* Episode 21 [[Recap/ACertainScientificRailgunEp21Voices Voices]]
* Episode 22 [[Recap/ACertainScientificRailgunEp22LevelSix Level 6 (The One Who Obtains the Power of God Without Being Divine)]]
* Episode 23 [[Recap/ACertainScientificRailgunEp23WhatIsItYouSee What Is It You See In Your Eyes Right Now?]]
* Episode 24 [[Recap/ACertainScientificRailgunEp24DearMyFriends Dear My Friends]]
[[/folder]]
[[folder:A Certain Scientific Railgun S]]
!!!Poltergeist Arc (Anime-Only)
* Episode 1 [[Recap/ACertainScientificRailgunSEp1Railgun Railgun]]
!!!Sisters Arc (Railgun)
* Episode 2 [[Recap/ACertainScientificRailgunSEp2Critical Critical]]
* Episode 3 [[Recap/ACertainScientificRailgunSEp3ProjectRadioNoise Project Radio Noise]]
* Episode 4 [[Recap/ACertainScientificRailgunSEp4Sisters Sisters]]
* Episode 5 [[Recap/ACertainScientificRailgunSEp5ProjectLevelSixShift Project Level 6 Shift]]
* Episode 6 [[Recap/ACertainScientificRailgunSEp6ICanSeeAllOfYou I... Can See All of You]]
* Episode 7 [[Recap/ACertainScientificRailgunSEp7IWantToBeOfHelpToYouBigSister I... I Want To Be of Help To You, Big Sister]]
* Episode 8 [[Recap/ACertainScientificRailgunSEp8ITEM ITEM]]
* Episode 9 [[Recap/ACertainScientificRailgunSEp9AIMStalker AIM Stalker ]]
* Episode 10 [[Recap/ACertainScientificRailgunSEp10Meltdowner Meltdowner]]
* Episode 11 [[Recap/ACertainScientificRailgunSEp11TheVendingMachine The Vending Machine]]
* Episode 12 [[Recap/ACertainScientificRailgunSEp12TreeDiagram Tree Diagram]]
* Episode 13 [[Recap/ACertainScientificRailgunSEp13Accelerator Accelerator]]
* Episode 14 [[Recap/ACertainScientificRailgunSEp14ThePromise The Promise]]
* Episode 15 [[Recap/ACertainScientificRailgunSEp15ToumaKamijou Tōma Kamijō]]
* Episode 16 [[Recap/ACertainScientificRailgunSEp16Sisterhood Sisterhood]]
!!!Silent Party Arc (Anime-Only)
* Episode 17 [[Recap/ACertainScientificRailgunSEp17StudyGroup Study Group]]
* Episode 18 [[Recap/ACertainScientificRailgunSEp18Moving Moving]]
* Episode 19 [[Recap/ACertainScientificRailgunSEp19AcademicResearchAssembly Academic Research Assembly]]
* Episode 20 [[Recap/ACertainScientificRailgunSEp20Febri Febri]]
* Episode 21 [[Recap/ACertainScientificRailgunSEp21Darkness Darkness]]
* Episode 22 [[Recap/ACertainScientificRailgunSEp22STUDY STUDY]]
* Episode 23 [[Recap/ACertainScientificRailgunSEp23SilentParty Revolution's Dawn (Silent Party)]]
* Episode 24 [[Recap/ACertainScientificRailgunSEp24EternalParty Eternal Party]]
[[/folder]]
[[folder:A Certain Scientific Railgun T]]
!!!Daihasei Festival Arc (Railgun)
* Episode 1 [[Recap/ACertainScientificRailgunTEp1SuperPowered Super-Powered (Level 5)]]
* Episode 2 [[Recap/ACertainScientificRailgunTEp2Daihaseisai The Daihasei Festival]]
* Episode 3 [[Recap/ACertainScientificRailgunTEp3BalloonHunter Balloon Hunter]]
* Episode 4 [[Recap/ACertainScientificRailgunTEp4Tampering Tampering]]
* Episode 5 [[Recap/ACertainScientificRailgunTEp5Trust Trust]]
* Episode 6 [[Recap/ACertainScientificRailgunTEp6TheBattleBegins The Battle Begins]]
* Episode 7 [[Recap/ACertainScientificRailgunTEp7AuribusOculiFidelioresSunt Auribus oculi fideliores sunt (The Eyes Are More Trustworthy Than the Ears)]]
* Episode 8 [[Recap/ACertainScientificRailgunTEp8RailgunXMentalOut Railgun × Mental Out]]
* Episode 9 [[Recap/ACertainScientificRailgunTEp9MitoriKouzaku Mitori Kōzaku]]
* Episode 10 [[Recap/ACertainScientificRailgunTEp10CloneDolly Clone Dolly]]
* Episode 11 [[Recap/ACertainScientificRailgunTEp11JoiningTheBattle Joining the Battle]]
* Episode 12 [[Recap/ACertainScientificRailgunTEp12Exterior Exterior]]
* Episode 13 [[Recap/ACertainScientificRailgunTEp13SYSTEM SYSTEM (One Who Obtains the Power of God Without Being Divine)]]
* Episode 14 [[Recap/ACertainScientificRailgunTEp14DragonStrike Dragon Strike (Jaw of the Dragon King)]]
* Episode 15 [[Recap/ACertainScientificRailgunTEp15Promise Promise]]
!!!Dream Ranker Arc
* Episode 16 [[Recap/ACertainScientificRailgunTEp16DreamRanker Dream Ranker]]
* Episode 17 [[Recap/ACertainScientificRailgunTEp17Precognition Precognition]]
* Episode 18 [[Recap/ACertainScientificRailgunTEp18BustUpper Bust Upper]]
* Episode 19 [[Recap/ACertainScientificRailgunTEp19StrangeCoincidence Strange Coincidence]]
* Episode 20 [[Recap/ACertainScientificRailgunTEp20HaDetBra Ha det bra ]]
* Episode 21 [[Recap/ACertainScientificRailgunTEp21Doppelganger Doppelgänger]]
* Episode 22 [[Recap/ACertainScientificRailgunTEp22Scavenger Scavenger]]
* Episode 23 [[Recap/ACertainScientificRailgunTEp23Possession Possession]]
* Episode 24 [[Recap/ACertainScientificRailgunTEp24Diffusion Diffusion]]
* Episode 25 [[Recap/ACertainScientificRailgunTEp25MyDearFriends My Dear Friends]]
[[/index]]
[[/folder]]

!!A Certain Scientific Railgun OVA
The ''Railgun'' OVA is a self-contained single-episode-length story which takes place during the first season, shortly after the Level Upper arc.
* [[Recap/ACertainScientificRailgunOVABecauseMisakaIsTheCenter Because Misaka is the Center of Attention Right Now]]