Hello there, i used to be very active here and loved to tinker with the Koreader on my kindle. But i have gone MIA for a few months and i am seeing a whole bunch of new Plugins and Patches. So if you guys can tell me with your most useful/favourite patches and plugins and what they do, that would help me a alot. I have just installed Bookshelf and i absolutely love it. Cant wait to try more. Cheers
Hey everyone, we all know KOReader is amazing, but no software is ever truly finished.
I wanted to open up a discussion and see what features, custom plugins, or workflow shortcuts you are all actually craving these days. Whether it’s a specific gesture mapping you need, a deep UI customization tweak, or just a small quality-of-life improvement you feel is missing, what would be at the very top of your wishlist if you could add anything?
Hi all! Bought myself an 8bitdo zero as I wanted to have a remote page turner for Koreader and I cannot for the life of me figure out how to make it work.
I’ve already updated the firmware, connected as a keyboard, tried remapping in “key mapper” and am having no joy ☹️
Can anybody who’s successfully managed it help me out? I’d be very grateful!
Hello everyone!
I noticed that even when Night Mode is on, KOReader shows the sleep screen without night mode applied, so transparent images end up with a bright background. I put together a small patch to fix that and figured I’d share it here. I’ve tested it on the emulator and on my Kobo Clara BW and it seems to work well.
If you want to test it out,
You can download the code here:
https://pastebin.com/TrLP60gK
Or copy and paste the code below into a text editor and save it as 2-keep-nightmode.lua then add it to your koreader/patches folder.
local Screensaver = require("ui/screensaver")
local ScreenSaverWidget = require("ui/widget/screensaverwidget")
local Device = require("device")
local Screen = Device.screen
local orig_show = Screensaver.show
Screensaver.show = function(self, ...)
if Screen.night_mode then
local snapshot = Screen.bb:copy()
snapshot:invertRect(0, 0, snapshot:getWidth(), snapshot:getHeight())
local orig_init = ScreenSaverWidget.init
ScreenSaverWidget.init = function(widget, ...)
ScreenSaverWidget.init = orig_init
local result = orig_init(widget, ...)
local orig_paintTo = widget.paintTo
widget.paintTo = function(w, bb, x, y)
bb:blitFullFrom(snapshot)
snapshot:free()
snapshot = nil
w.paintTo = orig_paintTo
return orig_paintTo(w, bb, x, y)
end
return result
end
end
return orig_show(self, ...)
end
Bookshelf is a home-screen plugin for KOReader with a focus on books.
v2.2 expands on collection management with bulk editing support as the headline feature.
Some of these features are getting fairly complex in terms of what's possible and how you might want to use them, but the core bookshelf experience is being kept as simple as possible - these are all optional layers available for when you want to go deeper.
What's new:
Download / install: https://github.com/AndyHazz/bookshelf.koplugin/releases
Full notes in the release. As always, feedback / issue reports / feature requests very welcome on GitHub. Although they're piling up a bit! I'll get round to addressing most of them in time, but still focusing on rounding out the core bookshelf feature set.
Do we think with storygraph partnering with kobo next month that it will work on koreader on kobo?
Can somebody help me? Just recently I installed the Simple UI plugin and updated KOReader.
However I'm having a problem as not a single book has cover in the Simple UI menu. When I open a book and block the screen, I can see the cover of the book in there, but it just doesn't show up in any book in the library or home screen (the books just show as white text on a box).
Edit: Fixed. Make sure to have Cover Browser ticked on in your plugins menu. After doing so Hamburger Menu - Extract and Cache book information - Here and Under.
I have a jailbroken Kindle Paperwhite 10th gen, jailbroken and running Koreader. I am wondering if it is possible to remove my Amazon account from it while still retaining the jailbreak and Koreader. I would like to sell it and get something running android, but don’t want them having access to my amazon account.
Or would it be easier to just return it back to stock? Is that possible?
I'm a Japanese user who jailbreaks Kindle to read Japanese novels with KOReader. I wanted proper vertical text (縦書き) support, but existing Lua-only patches felt like workarounds to me. I checked upstream PRs but it didn't seem like something they'd take on.
So I forked KOReader and implemented vertical-rl rendering at the engine level (crengine), rather than patching around it in Lua. Existing KOReader features should all still work — I just added the vertical text engine on top.
What works:
There may still be bugs. If you're in a similar situation — jailbroken Kindle or Kobo, wanting to read Japanese novels vertically — feel free to try it.
https://github.com/m-tky/koreader-tategumi
Big thanks to the KOReader developers for building such an extensible platform. None of this would have been possible without their work.
Hi guys!
The dev community is totally active on plugins or patches for home screen, browser or library but the reader part is forgotten.
Any reason for that? Isn't possible to develop for reader interface / menus?
I’m taking about this page:
Hello everyone!
I've released a new plugin that allows you to remove the rainbow artifacts on color e-readers such as the Kobo Libra Color, Kobo Clara Color, Kindle Colorsoft, and Pocketbook Inkpad Color 3. It adds an option called "Derainbow" which allows you to remove them directly on your device. This is most useful for black and white comics and manga.
It's similar to the "Reduce rainbow effect" toggle found in the official Kobo software, but it doesn't blur the image and keeps its sharpness. It uses the same method found in Kindle Comic Converter which is the use of discrete Fourier transforms. You can also make it turn on automatically with either profiles or by holding down on the option to set its default value.
There is only a slight delay for rendering new pages, but the automatic pre-rendering of pages makes this unnoticeable when reading. Performance may be improved in future releases.
To install/update the plugin, you can look at the releases page.
I only own the Kobo Libra Color, so I couldn't properly test how well it works on other devices, but if there are any problems you may create an issue on the repository.
Most of the heavy lifting was done by Its-my-right and their patch for the Inkpad Color 3 as well as their work in Kindle Comic Converter, and the idea to use Fourier transforms came from Blendman974. The above image (to the left) showing the rainbow artifacts is from this blog post by Renkon.
If you want to support me, you can star my repository or buy me a coffee. :D
Repository: https://github.com/Euphoriyy/derainbowify.koplugin
Releases: https://github.com/Euphoriyy/derainbowify.koplugin/releases
Issues: https://github.com/Euphoriyy/derainbowify.koplugin/issues
Ko-fi: https://ko-fi.com/euphoriyy
I had a few days off so I spent way too much time trying out plugins. For a few days now, koreader on Kindle Oasis is painfully slow. I never experienced that in the last 5ish years. At this point I think a clean install would be a good idea. Can anybody help me out how to do this?
Hi, my old Kindle PW gen 3 has gone through the jailbreak process a few weeks ago and for the first time ever I'm discovering the benefits of getting out of Amazon's awful jail.
I have gone through some of KOReader menus -- it definitely has a huge amount of settings and possibilities that I barely imagined before. Setting up text format with more liberty (my initial goal for jailbreaking) was barely the beggining!
I must confess though that the interface is painfully complicated for new users who are coming from your typical GUI -- the questionable location of some buttons (I mean, some as basic as the one to go back to the library or to the previous menu), the constant appearance of obscure settings that have no reason to exist when you are reading...
I recently learned about SimpleUI, which I guess must be a popular plugin around here, and at least it solved some of my issues with the "home screen".
However, I still struggle with some stuff that I can't and won't ever get used to -- that intricate top bar, the rather ugly interface that pops up when I press the screen while reading a book...
Are there plugins that could help me simplifying the whole KOReader experience? :-(
Solved: I did two things that potentially solved this. I made sure the books were the exact same binary file and I switched to crossink. The problem does seem to be fixed now! thanks for your help!
Hello. I have researched this issue and I am just not clear if I am doing something wrong or perhaps this is just a known bug. I am attempting to read using a couple of devices. I'll provide all the information I can.
I mainly read on a Kobo Libra 2 with Koreader and Simple UI installed. I have successfully gotten my progress from books synced with KoSync and Readest (app and program).
I recently got the Xteink X4 and was able to put Crosspoint on it . I have setup to do KoSync.
When I am done reading on the Kobo, I tell it to sync with Kosync. I am successful getting my progress from the Kobo onto the Xteink. It works every time.
However, when I read on my Xteink and upload progress via Kosync, my Kobo never receives the proper placement. It keeps going back to 64% when I have read up to 70%.
I tried using the Readest using it's KoSync feature. However, it's not working either.
Is this a known issue, or am I doing something strange here? Any help is appreciated.
Hello,
maybe someone can help me quick.
I have installed the latest version of Bookshelf and I like it. But I have 2 problems:
I cannot find the option toset it as the main start page. I have also Project: title installed, but from my understanding it should be no problem.
When I'm in Bookshelf I cannot access the normal Koreader menu by clicking the top part of the display. I always have to open a book and then I can access the menu again. Is that normal?
Thanks a lot in advance!
This plugin supports:
.puz and .ipuz filesProgress is saved automatically, and puzzles can be replayed offline.
(Developed entirely with AI assistance.)
I used the Material Symbols pack from iconify.design to change SimpleUI's icons from the menu, and to replace all system (and Shortcuts Toolbar's) icons in koreader/icons. (also, i can zip and link the folder in the comments if anyone wants this, but does not want to find, download and rename all the icons one-by-one)
I use Bookshelf as my library (it closes with a gesture).
There are some patches too, like the ui font changer or the cvs receipt.
Does anyone know why doesn't Shortcuts Toolbar show book info (even though it's enabled in the menu)?
I'm really excited about this one! This update includes:
https://github.com/mysticknits/pencil.koplugin/releases/tag/0.5.0