Khan Academy – Torrent of all the videos

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Torrent of all the videos of Khan Academy (version 2020-05-15)

Introduction

Khan Academy is a website offering thousands of free educational videos on a lot of different subjects: Mathematics, Science, History, Economics, Astronomy, Art history and a lot more! The Wikipedia article of Khan Academy has more details on what it is exactly.

The videos are available on their website where you can (optionally) log in, this will give you some features like tracking what you have watched, commenting, asking questions to other people and doing tests and when you pass them successfully, the website will skip videos that you do not need to watch because you have understood a specific subject well. When you use their website, the team behind Khan Academy also track what you are doing so they can improve their website. There is no doubt that by using their website you can learn faster than if you download and watch all the videos on your computer.

However, for various reasons it might be best to download them. To share with people who do not have access to the internet is one of the main reason.

How to download the videos

Download a torrent software, many are available. If you do not know what bittorrent is, first read the Torrents 101: How Torrent Downloading Works article. One torrent software that is free and open source is Deluge. Available for Windows, OS X and Linux. Install it, open it, click on File > Add Torrent > File and select the torrent file that is posted at the top of this page.

Information on the torrent

The torrent is available at all times. It is extremely well organized with descriptive titles. We recommend using the free and open source VLC Media Player to play them.

Here’s a preview of some of the videos and how they are organized.

Arts and humanities/03 US History/10 Surveys of history/004 US History overview 3_ WWII to Vietnam.mp4
Arts and humanities/09 Art History/03 Special topics - Creating and conserving/055 Contemporary Art Conservation at Smithsonian's Hirshhorn Mus.mp4
Arts and humanities/09 Art History/74 Art of Asia - Korea/004 Ewer with lid.mp4
Arts and humanities/10 Storytelling/02 Pixar in a Box - The art of storytelling/005 World and character.mp4
Arts and humanities/16 Partners - The British Museum/05 The Middle East/005 The Mahmal.mp4
Arts and humanities/18 Partners - The J. Paul Getty Museum/01 The J. Paul Getty Museum/024 Pair of chests, attributed to Antonio Maffei.mp4
Arts and humanities/22 Partners - Wireless Philosophy/01 Critical thinking/011 Fundamentals_ Implicit Premise.mp4
Arts and humanities/22 Partners - Wireless Philosophy/02 Metaphysics and epistemology/024 Theory of Knowledge_ Analyzing Knowledge _3 (Causal and Reli.mp4
College, careers and more/01 College admissions/04 Applying to college/007 Avoiding common admissions essay mistakes.mp4
College, careers and more/02 Careers/09 Design, create, perform/010 Composer_ What I do and how much I make.mp4
Economics and finance/01 AP Macroeconomics/02 Economic indicators and the business cycle/008 Expenditure approach to calculating GDP examples.mp4
Economics and finance/01 AP Macroeconomics/03 National income and price determination/006 Long-run aggregate supply.mp4
Economics and finance/05 Finance and capital markets/06 Stocks and bonds/026 More on IPOs.mp4
Math/14 Algebra basics/05 Systems of equations/009 Systems of equations with elimination_ potato chips.mp4
Math/15 Algebra I/01 Algebra foundations/002 Abstract-ness.mp4
Math/19 Statistics and probability/05 Exploring bivariate numerical data/045 Calculating R-squared.mp4
Math/23 Differential Calculus/06 Parametric equations, polar coordinates, and vector-valued functions/017 Worked example_ differentiating polar functions.mp4
Math/29 Multivariable calculus/02 Derivatives of multivariable functions/026 Curvature formula, part 5.mp4
Math/29 Multivariable calculus/03 Applications of multivariable derivatives/021 Finishing the intro lagrange multiplier example.mp4
Science and engineering/01 Physics/10 Thermodynamics/027 More on entropy.mp4
Science and engineering/06 Organic chemistry/11 Carboxylic acids and derivatives/008 Carboxylic acid nomenclature and properties.mp4
Science and engineering/07 Biology/23 Ecology/025 The water cycle.mp4
Science and engineering/09 AP Biology/09 Worked examples of AP Biology free response questions/008 6a-c, Population ecology.mp4
Science and engineering/11 Electrical engineering/07 Home-made robots/068 LED eyes.mp4
Science and engineering/12 Health and medicine/01 Human anatomy and physiology/006 Thermoregulation in the circulatory system.mp4
Science and engineering/12 Health and medicine/03 Circulatory system diseases/018 What is a stroke_.mp4
Science and engineering/12 Health and medicine/03 Circulatory system diseases/069 Atrial fibrillation (Afib).mp4
Test prep/01 SAT/03 SAT Reading and Writing practice/015 Writing_ Concision, style, and tone - Harder example 1.mp4
Test prep/06 MCAT/05 Biomolecules/118 Fatty Acid Oxidation - Part II.mp4
Test prep/06 MCAT/13 Society and culture/009 Rational choice-exchange theory.mp4

Changelog


2020-05-15 Total of 10222 vieos,   91167 MBs, 1160 hours
2019-03-25 Total of 10096 videos, 114848 MBs, 1154 hours
2017-07-17 Total of 10807 videos, 109920 MBs,  648 hours
2015-07-29 Total of 11136 videos, 119067 MBs, 1301 hours
2015-01-25 Total of 10136 videos, 107613 MBs, 1181 hours
2014-01-25 Total of  6694 videos,  63081 MBs,  817 hours
2013-05-08 Total of  4567 videos,  44351 MBs,  627 hours
2013-01-29 Total of  3883 videos,  38257 MBs,  549 hours
2012-03-28 Total of  3029 videos,  51030 MBs,  466 hours
2011-10-27 Total of  2683 videos,  44760 MBs,  414 hours
2011-08-09 Total of  2523 videos,  41575 MBs,  392 hours
2011-05-06 Total of  2062 videos,  17198 MBs,  325 hours
2010-12-10 Total of  1732 videos,  29708 MBs,  292 hours
2010-10-28 Total of  1618 videos,  26484 MBs,  273 hours

FAQ

How do I only download specific videos?

One of the most useful feature with torrents is that you can download just what you need. Every torrent software has this option. In Deluge, click on your torrent and look at the Files tab at the bottom, you can right-click on folders and select “Do not download”.

When will a new torrent file be released with new videos?

There is no release date. This torrent is voluntary work so it happens only when we find the time to make a new one.

A new torrent is out, can I download it over the old torrent I had so as to save bandwidth?

Khan Academy regularly change the structure, folder names and filenames so it is better to delete everything and start downloading the new torrent.

Why is some filenames of video cut-off?

Windows filesystem, unfortunately, has a limit of around 255 characters for the complete path with the filename. So we have implemented a limit of around 200 characters for the path and the filename of each videos. The remaining 55 characters is left for the path that the user will download the torrent (i.e. C:\Users\name\Downloads).

How do subtitles work exactly?

A subtitle file, which has an extension .srt, is just a text file containing all the subtitles of a video. To be able to use it, the subtitle file must have the exact same filename as the video and be in the same folder as the video. By just opening the video with VLC Media Player, it will automatically read the subtitle file.

To copy the subtitles files in the same folder as the videos, unzip the language you would like from the Subtitles folder and just copy all the folders of your language into the folder video so as to merge them. It will place all the subtitles files in the right folder. Note that there isn’t subtitles files for every video. Unfortunately, not all videos are translated.

84 Responses to “Khan Academy – Torrent of all the videos”

  1. Crys K

    I need the math & physics parts. As i have to download 42 GB @ 30kb/s for a few hours a day, this will literally take me months to complete. Please seed !

    Reply
    • Zurd Zurd

      I’m there and seeding with my seedbox very fast but there is no one at the moment downloading.

      Reply
  2. pravin

    I Want to say Thank You.
    Very very carefully classified and maintained. Thank you for the efforts. Specially for the Math. It was very difficult to arrange everything. Many videos are repeated.
    You made it simple. Great work

    Reply
    • Zurd Zurd

      Thanks for the comment! Indeed, lots of duplicate videos on their website all around. I have a special tool to remove those and just keep one copy. I will make a new version soon, wanted to do it during christmas time but didn’t find the time.

      Reply
      • Musleh Omer

        Thank you so much, Zurd. God bless you and your hard work. The world needs more people like you.

        Reply
  3. Hari S

    Hi, could you please seed the torrent again?

    Reply
    • Zurd Zurd

      I am seeding at the moment at 23 MB/s ! I’m checking it every sunday to make sure it is still running. There hasn’t been a problem in over a month now.

      Reply
      • Hari S

        I see. For some reason my torrent client initially failed to connect to the swarm, but it’s working now.

        Anyway, thank you very much for providing this torrent. I was using youtube-dl to archive all Playlists from the Khan Academy YT channel, but Youtube temporarily locks me out every time I download more than a couple hundred videos from the same IP address (even if I set a delay of 1 min between each download). Downloading your torrent is a much more effective method of getting the videos, that’s for sure.
        Thanks again.
        Cheers

        Reply
  4. Chabuno

    Hey, is anyone still seeding this? It’s a great torrent, but unfortunately only 1 seeder giving me roughly 20 KiB/s :(.

    Much appreciated!!

    Reply
    • Zurd Zurd

      Yup, I’m still here, the torrent on my seedbox was stopped for an unknown reason, I’ve restarted it and it’s seeding right now but not very fast.

      Reply
  5. Star Trek 2: The Wrath of Khan Academy

    This torrent is not complete, and I cannot find what I am looking for anywhere else. You mentioned a Bash script and PHP, could you post those somewhere? That might be helpful to many. Thanks.

    Reply
    • Zurd Zurd

      Hi, check out https://www.zurd.ca/khanacademy.zip it’s all in there, php and bash scripts, it’s possible that the khanacademy webpage has been modified so the script will have to be modified, haven’t take a look in a long way unfortunately. It’s in my to do list, just not there yet :)

      Reply
  6. Someone Incognito

    This is incredibly useful.
    You have all my gratitude for your work.
    I will keep this torrent seeded.
    Have you been downloading the videos manually, or have you got a trick up your sleeve ?

    Reply
    • Zurd Zurd

      Manually would take way too long. I started with a BASH script that download and rename all the videos. Then it wasn’t practical so I remade it into PHP. It’s working quite good now :)

      Reply
      • Someone Incognito

        Your dedication is very commendable. I wish we all had a sharing at heart.
        Have you thought about hosting your automate on github ? It would certainly be appreciated by a lot of Khan users.
        The road to your blog was a bit strenuous, as Google bans “torrent” related keyword and searches

        Reply
        • Zurd Zurd

          No need to put it on github I would say, it’s just a small personnal project :) Use duckduckgo.com not google!

          Reply
          • karthik

            Dude or sir are you from finland, thats the only live peer for the past 24-hours.

  7. Eddie

    I am not much of a commenter, but i highly appreciate the effort you’ve made to compile and keep it running, bless you man~!

    Reply
  8. Patrick L.

    Are you planning on uploading the collage class videos?

    Reply
    • Zurd Zurd

      I wish I could, I’m just quite busy. I’ll try to re-do the whole thing in a few weeks instead.

      Reply
  9. Shahid Ali

    The torrent has stopped at 7.8 % and turned into red, please seed I really been waiting for this to download. Its very important for me. I rely on these lectures. So please seed.
    Thank you

    Reply
    • Zurd Zurd

      There was a server migration of my seedbox which is why it was down. It’s up and running again!

      Reply
  10. Rigo97
    • Zurd Zurd

      There was a problem with the hard drive on the seedbox, everything was lost which is why I cannot seed anymore. I will make a new torrent very very soon (hopefully today!) with all new contents!

      Reply
    • Zurd Zurd

      New torrent is finally out!

      Reply
  11. Ehsan

    It’s Such An incredible Torrent but like stuck at 93%. I need to move the files to an external hard drive so is there something that can be done about getting that 7%?

    Reply
    • Zurd Zurd

      There was a problem with the hard drive on the seedbox, everything was lost which is why I cannot seed anymore. I will make a new torrent very very soon (hopefully today!) with all new contents!

      Reply
    • Zurd Zurd

      New torrent is finally out!

      Reply
      • tovio

        Hi Zurd,
        Thanks so much for the new KA torrent.
        I looked and I did not see Probability/Statistics, any Calculus, DiffEq or Linear Algebra videos. I’m wondering if you will re-release the torrent with those videos included?
        Thanks

        Reply
        • Zurd Zurd

          Hi, if you look at https://www.khanacademy.org/library, most of the videos in “Math by subject” are already included in “Math by grade” which is why I didn’t include videos from “Math by subject”. I realized now it was a mistake. I will release a second torrent which will be “Math by subject” only. It will complement the first one!

          Reply
          • tovio

            Ohh, ok. Thanks for the clarification and the hard work! I’m actually using youtube-dl right now to download section by section from KA, just to stay organized. So far it’s great, though a many-step process. I haven’t figured out yet how to run youtube-dl on any of the base index pages and result in an organized output. I think your new torrent will look a lot like what I’m working on.
            Thanks!

          • Akshay Raman

            Hi Zurd. Thanks for all of this. I would like to know when will you make the new “math by subject “torrent. I have decided to shut down my internet to stop wasting time but i do need khan academy for studies so downloaded everything offline. I request you to make the “math by subject”(with calculus).
            Do you mind sending a link of the new torrent to my email as i am shutting my internet down from today.
            Thanks again!
            Email : akshayraman1002@gmail.com

  12. Alex

    incredible torrent, are you the only one seeding ? it’s quite impressive and will help a lot of people, can’t thank you enough for this.

    Reply
    • Zurd Zurd

      There was some people seeding in the past, not sure if they are still around. The torrent is on a seedbox so the speed shouldn’t be an issue :)

      Reply
  13. Murtadha

    Thank you so much.
    please can u update the torrent and add the new videos from khan academy?

    Reply
  14. GV

    Thank you very much Zurd! Very kind of you to do so much and for free! You saved an unbelievable amount of time, by no doubt taking an unbelievable amount of your time. God bless!

    Reply
    • GV

      And thank you to the seeders as well!

      Reply
    • Zurd Zurd

      My pleasure! Though this torrent is getting quite old, i’ll try to prioritize making a new one in the next few weeks!

      Reply
  15. shavkat
    • shavkat

      can you please seed. i am from uzbekistan and my internet speed is 30kb/s.

      Reply
      • Zurd Zurd

        Torrent was in paused state unfortunately. It’s running again now!

        Reply
  16. Akbar

    Bro, there’s only one seeder in this torrent. such a same for great content.

    Reply
    • Zurd Zurd

      Yes I’m the one seeding. It is on a seedbox with a 20 Mbps upload speed so there should be a good download speed.

      Reply
  17. sadjio

    Are you planning on doing another update this year? Thanks for your hard work, I imagine creating this torrent is very difficult!

    Reply
    • Zurd Zurd

      I will add in my to do list to create a new torrent. This year for sure since it’s been a long time I haven’t done one!

      First torrent was hard to do but now it’s quite easier since I have a script and the procedure written down, it just take a bit of time :)

      Reply
  18. Zapper

    Excellent resource. Just started to download, but it stopped midway. No seeds for the last two days. Please help.

    Reply
  19. viral

    there is no seeders..pls update file

    Reply
  20. karthik

    Guys can anyone help me. The internet connection in and near my house are not enough to download all videos.so is anyone planning sell a cd or drive with all videos plzz let its cost be minimum .i am in Tamil Nadu un india

    Reply
    • karthik

      Zurd plzz help me out guys I have needing it for a year
      And my uTorrent still says it needs28yrs to download with my interenet connection

      Reply
      • Zurd Zurd

        You can always watch it on youtube! Find someone with a better internet connection. It will take about 30 DVDs to fit everything, that is a lot.

        Reply
  21. Farbod

    hey there Zurd!
    I am going to download the videos but since you’ve said that you are going to update the torrent, should I just download them now? or wait or something? am I going to miss something?
    thanks.

    Reply
    • Zurd Zurd

      Go ahead and download everything, I’m not ready yet to make a new torrent. I’ll make a new one this summer so there’s still a few months left! :)

      Reply
  22. Arash A

    THANK YOU SO MUCH for adding subtitles.

    Reply
  23. karthik

    Guys ,my download of khan academy videos is in progress.i have a couple of videos in the download destination ,but tried to play em with windows media player it says extension web.m cant be connected.so how would I be able to play these videos.

    Reply
  24. Susan Chang

    I know it’s been a year since you last posted this new torrent, but I’d just like to thank you for setting this up!

    Reply
    • Zurd Zurd

      Well last torrent was 2015-07-29, so it’s been 5 months and a half not one year! I will release another torrent with the latest videos in a few months, stay tuned! Thanks for your comment!

      Reply
  25. Sohrab

    This is wonderful. Thank you very much. This is great help for people who can’t access Khanacademy directly. Thanks a lot.

    Reply
  26. Student

    This torrent is unseeded, which is too bad because I could really use it. Can you drop me an email or something if you start reseeding, Zurd? :)

    Reply
    • Zurd Zurd

      Sometimes this torrent goes to Pause in my seedbox. No idea why but I always restart it. I check it around once a week. It’s been running for at least the past 3 days without problem!

      Reply
  27. Mishra

    sir, I am unable to download it using bitcomet. what should i do as now it has no seeder ……. please reply soon.

    Reply
    • Zurd Zurd

      Like I said below to someone else, there was a problem with the seedbox, it lasted just a few days though. We are 4 peers connected at the moment, working quite fine!

      Reply
      • Mishra

        Sorry Sir/Ma’am but torrent has stopped on 1.5% and not proceeding because of no seeders.
        I request you to look into this matter and please rectify the problem. i will be very grateful to you.

        Reply
  28. student

    Unable to download in that torrent, not connecting to peers. Error in the tracker. Can anyone fix it ?

    Reply
    • Zurd Zurd

      There was some problem with the seedbox at that time which lasted for a few days. It’s been seeding fine for quite some weeks now!

      Reply
  29. Arash A

    Thank you, so much. I think it would be so much better if you could include each video subtitle in the torrent also and I would be very thankful if you show me anyway that I could get all the subtitles by my self. Thank you.

    Reply
    • Zurd Zurd

      I always wanted to add the subtitles too but kind of forgotten all about it!

      I will see what I can do in the next torrent!

      Reply

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