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Review Heatmap

0.07MB. Updated 2017-02-19. Only supports Anki 2.0.x.


Adds a heatmap graph to Anki's main window which visualizes past and future card review activity, similar to the contribution view on GitHub. Information on the current streak is displayed alongside the heatmap. Clicking on an item shows the cards reviewed or due on that day. COMPATIBILITY This add-on only works with Anki's stable release branch (≥2.0.37). The 2.1 beta is not supported at this point in time. A development build for 2.1 is available on GitHub, but still requires testing. Please do not downvote this add-on simply because it's not listed as compatible with the Anki 2.1 BETA. Downvoting add-on pages for no reason is not a valid way to get your point across. You made the conscious decision to test a development release of Anki, fully knowing that most add-ons would not work with it. If you are willing to test a development release of Anki, you should also be willing go through the marginally higher effort of installing the 2.1 development releases of your add-ons, which will usually be available through GitHub. Even if an add-on author has not yet had the chance to port their add-ons, you should not punish them just because they don't have the free time to update the open-source projects that they've decided to share with the community. If 2.1 compatibility of a specific add-on is crucial to your workflow, then you can either learn how to develop add-ons yourself and contribute to the project, or commission someone else to do the work for you. Thank you. VIDEO DEMONSTRATION (Make sure to enable closed-captions for comments on the demonstrated features) FEATURES RELEASE LOG This section will always be updated with the latest changes to Review Heatmap. More details on major releases are listed in the next section. For a full release log, including smaller bug fix releases and more details on each entry, make sure to check out the releases page on GitHub. LATEST CHANGES AND NEWS v0.6.0 As this version uses a new file structure you will have to remove older versions of the add-on before updating. Otherwise you might end up with multiple heatmaps. INSTALLATION Simply follow the generic instructions listed below this add-on description. DOCUMENTATION The use of this add-on is documented in the official Wiki and the YouTube videos linked to above. HELP Please check out the Troubleshooting section in the Wiki if you are experiencing issues with the add-on. Bug reports and suggestions are always welcome, but it might take me a while to get to them. Please do not post bug reports in the review section, as I will not be able to help you or reply. Instead, please use the official support thread (no registration necessary!). CREDITS AND LICENSE Copyright (c) 2016-2017 Aristotelis P. Inspired by GitHub's contribution calendar and Forecast graph on Overview page by Steve AW. Ships with the following javascript libraries: Licensed under the GNU AGPL v3. The code for this add-on is available on GitHub. OTHER ADD-ONS Make sure to also give some of my other add-ons a try: There are also a number of other great add-ons out there that will help you gamify Anki to an even further extent than with Review Heatmap alone. I go over a few of them in the following video: ADD-ON COMMISSIONS A lot of my add-ons were commissioned by fellow Anki users. If you enjoy my work and would like to hire my services to work on an add-on or new feature, please feel free to reach out to me at: ankiglutanimate [αt] gmail . com MORE RESOURCES Want to stay up-to-date with my latest add-on releases and updates? Feel free to follow me on Twitter: @Glutanimate New to Anki? Make sure to check out my YouTube channel where I post weekly tutorials on Anki add-ons and related topics: / Glutanimate ============================================ SUPPORT THIS ADD-ON Writing, supporting, and maintaining Anki add-ons like these takes a lot of time and effort. If Review Heatmap has been a valuable asset in your studies, please consider using one of the buttons below to support my efforts by buying me a coffee, sandwich, meal, or anything else you'd like: Each and every contribution is greatly appreciated and will help me maintain and improve Review Heatmap as time goes by!


As add-ons are programs downloaded from the internet, they are potentially malicious. You should only download add-ons you trust.

To download this add-on, please copy and paste the following code into the desktop program:


If you were linked to this page from the internet, please open Anki on your computer, go to the Tools menu and then Add-ons>Browse & Install to paste in the code.

Other Anki 2.0.x Add-Ons Ask a Question


on 1540031393
very good
on 1539980852
need this in 2.1 asap !! best add-on
on 1539765741
on 1539498375
Gives you motivation and a sense of achievement.
on 1539465104
Good, Very Good
on 1538896903
Amazing addon, thank you!
on 1538554072
I love it! It shows my progress at a glance.
on 1538531115
Gives me motivation to study daily. Looking forward to updates.
on 1538261173
looks like github , awesome!
on 1538224337
Works great, I love having an overview of progress on the welcome page, and the shortcuts to browse each day's reviews are handy. Thanks for working on it!
on 1538100864
This is my first, add-on. This is great.
on 1537970884
waiting on 2.1 version
on 1537893467
on 1537703798
How do I install the 2.1 version from GitHub?
on 1537399937
we need 2.1 version.
on 1537104004
waiting update
on 1536878774
I never realized how much I loved this until I installed Anki 2.1 and discovered it wasn't (yet) compatible. Gosh how I miss those little green squares! Thank you for your work, it's a really great addon when it comes to motivating oneself!
on 1536749760
Ease of use; good motivation to keep up learning
on 1536514548
Sensacional!! Dá pra ver suas estatísticas na tela principal de todos os decks, e dá pra ver só de um deck se você entrar nele. E o mais incrível, as configurações detalhadas. Dá pra mudar as cores, dá pra colocar organizado por ano, como você por padrão, ou por mês. Também dá pra limitar em quantos dias você quer ver seu progresso. Se fosse pago eu pagaria de olhos fechados!
on 1536402947
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on 1536244543
on 1535928137
Thank you for your hardwork.
on 1535909498
Really great add-on for anki, thanks!
on 1535725635
Nice function~
on 1535685239
Love it, although I wish the default history was longer then 365, this scared me until I realised I could change it.
on 1535086962
on 1534138137
on 1534098910
amazing! waiting for 2.1 support :)
on 1534009077
Awesome addon to keep track.
on 1533805676
We need 2.1 version!
Comment from author
Thanks for the rating! Working on it as we speak :)
on 1533763525
Really nice!
on 1533009740
Love this add-on! Is it possible to make a color scheme that meshes better with the Night Mode add-on? I didn't want to mess around with the code.
on 1532613448
Great design and functionality
on 1532417493
it helps to track the progress
on 1532338081
thank you so much, this map helps keep me motivated to continue my streaks!
on 1532324924
Works perfectly, love it
on 1532269425
Thanks. Donated
Comment from author
Thank you! I really appreciate that!
on 1531512333
Works great! Really helps me in maintaining motivation to learn.
on 1531307696
Lovely! Motivates you. Helps you find the days when you struggle to do your reviews (for example it's the weekends for me when the daily routines are out of the picture)
on 1530730028
Amazing, it's so motivating to see my progress so far :)
on 1530638134
on 1530348078
Great visualization
on 1530101126
It's useful and nice complement to Anki interface.
on 1529696322
Reason? It's awesome
on 1528891554
Keep up the great work...Glutanimate...the add-on is amazing..
on 1528588800
I love this add-on! Being able to see what I've done really motivates me to complete what I'll have to do.
on 1528502400
Since you can visually see your progress, it's very motivating to keep doing cards everyday and do more reviews than your previous day
on 1527724800
on 1527379200
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on 1526688000
Really neat overview.
on 1526428800
Really nice, it shows our reviews history and upcoming reviews per days (columns). Congrats!
on 1526256000
Cool ;__;
on 1525046400
Great addition. Just what I was looking for.
on 1524960000
Motivating and informative. :)
on 1524787200
How can I activate the Heatmap in my Anki 2.0.51 version? Because my Anki is not 2.0.37 and earlier and i do not have the 2.1 Beta. I am in between, where this Addon seems to have no support at all xD
on 1524700800
Good for heating up my lazy, unmotivated ass.
on 1524528000
Very useful
on 1524355200
definitely one of my favorites
on 1523577600
Yes it's good
on 1523577600
It's not working on the new Anki version :/
Comment from author
I'm actively working on the 2.1 port, and have been doing so for months now: https://github.com/glutanimate/review-heatmap/commits/master. But leaving a thumbs-down in the review section won't get you the port any faster. (Nor will it for any any of the other add-ons you left a thumbs-down on for the same reason).
on 1523577600
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on 1522886400
Works great! Just as described!
on 1522800000
on 1522627200
Fantastic !!
on 1522454400
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on 1521763200
very motivating, thank you!
on 1520380800
it works well!
on 1519948800
on 1519171200
A most excellent add on - not only aesthetically pleasing, but also useful in how it gives fast access to summary of statistics on past and future reviews.
on 1518652800
Perfect !
on 1518652800
on 1518566400
It's a good idea!
on 1518220800
on 1517616000
on 1517356800
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on 1516924800
This is an very solid addon, it increases the sensation of routine
on 1516665600
It's exactly want I wanted
on 1514678400
Very elegant.
Just one problem is that after I imported a shared deck, the due dates for this deck appeared in my heat map. I used the "Reset card(s) scheduling information / progress" addon on this deck, but they still show up on my heat map.
on 1514505600
This add-on makes it much easier to view progress over time and I would say it certainly "gamifies" anki more by adding visual progress.
on 1514246400
Very motivating! Keep up the good work. Your Addons are amazing
on 1514246400
Helpful visualization. It pretties my Anki up too :)
on 1513641600
I really like this add-on. It motivates me too keep using Anki every day!

I noticed a problem though. There are some 'empty' days in the heat map, but I remember well and I'm sure that I did study on those days. Some other days also show less cards reviewed that I remember reviewing. Could it be because I used AnkiDroid? I'm not sure though if the days I used AnkiDroid on and the empty days in the heat map correlate with each other 100 percent, it's just a suspicion.
on 1513555200
on 1513123200
Great visual improvement.
on 1512864000
A great motivator—can't help making a quick review just to upkeep the streak!
on 1511913600
Awesome motivator and way to track reviews per day
on 1511827200
on 1511568000
Great for a clear overview of usage!
on 1511222400
Thank you so much, the interface is just great, it keeps me on track and motivated.
on 1511136000
Love it. It is motivating.
on 1508198400
Neat visualisation

I like this add-on for its concise yet useful visualisation of one's review progress. It gives a nice breakdown by days, weeks, and (optionally) months. I like its forecast function too. Thanks for the great add-on and its high quality.
on 1507680000
An error happened when I deleted a uncompleted deck and tried to open statistic


Traceback (most recent call last):
File "aqt\webview.py", line 152, in _linkHandler
File "aqt\toolbar.py", line 74, in _linkHandler
File "aqt\toolbar.py", line 94, in _statsLinkHandler
File "aqt\main.py", line 732, in onStats
File "C:\Users\lenovo\AppData\Roaming\Anki2\addons\review_heatmap\main.py", line 340, in my_statswindow_init
File "aqt\stats.py", line 89, in refresh
File "anki\stats.py", line 124, in report
File "anki\hooks.py", line 61, in repl
File "C:\Users\lenovo\AppData\Roaming\Anki2\addons\true_retention_graph.py", line 161, in new_progressGraphs
IndexError: list index out of range
on 1504137600

Útil para verificar o progresso dos estudos.
on 1500940800
Keeps me motivated

A must add-on to carry you forward through dark Anki days. ;-)
on 1497484800
Motivating and Beautiful.

Visualization is always more informative than numbers. Once more glutanimate rocked with an awesome add-on.
on 1492646400
So simple, so nice

This visualization helps me with motivation! It is very nice, thank you!
on 1489363200
Lovely add-on

It's nice to visualize progress this way, thank you very much!
on 1487289600

Idéia incrível. Excelente.

Existe uma versão desse add on, para ankidroid ?

Seria muito legal ...
on 1484265600
Awesome Addon

Great way for me to see how well I am keeping up with my review. For those who are having issues with not being able to see the Customizable option menu, follow the manual installation instructions. This worked for me.
on 1484179200
This heatmap add-on rocks! No more card-punching apps.

This add-on is really useful if you want to keep track of your learning "flow". Purely amazing!
on 1484179200

It would be interesting to create a link that leads to the study of these cards by the day selected in the application.

??In the last update it is described that a customization option was created in the tools menu. But the add-on is not appearing on the Tools menu. So I do not have access to your customization options. The add-on only appears under "Add-ons." (System microsoft windows XP)
on 1483660800

Thank you so much.

Last year I reviewed between 200 and 900 cards daily (with a few exceptions). The map looks fantastic. So much work…

Tools like these are great because they not only provide information but also encourage one to do even more – in particular, not to miss a single day. It's super stimulating!

I'm on macOS 10.11.
on 1483574400
Awesome idea

But I agree with the previous comment of high daily review counts just becomes a wall of blacks. I review on avg about 200 cards per day.

Nevertheless it is very interesting see the heatmap when I scroll back to a few years ago when I just first started anki (doing 50-100 cards/day).

Sorry I don't have any better idea on how to help make it better tho :(.
on 1483315200
Consider changing color scale

For decks with large numbers of reviews (my daily reviews tend to average somewhere between 200 to 500 cards), the heatmap just looks black, despite there being up to 300 review differences between different days:


Makes it not overly interesting if I can only differentiate visually between days where I happened to only do none, a few dozen, or my normal days.

Consider adding more shades of green to allow for more groups and to change the batch sizes instead of being in groups of 20, to a sliding scale where the batches grow as you go up in number. For example, a scale more like [0, 1-25, 25-60, 60-100, 100-175, 175-300, 300-500, 500+] would probably make the graph interesting both for people with small number of reviews a day (4 color categories below 100) and for people like me with a large number of reviews.
on 1483228800
Thanks 's message

A great extension, thank you very much.
I suggest to add this extension to the next version of Anki.
Thanks again.