World domination.
…Just kidding. Well, not really.
The question comes up a lot. I’d say: I use it to store things. Passwords, accounts, addresses, phone numbers, snippets of text.
And then, I use it for lists. Only 5 months 'till Christmas.
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- Language creation / conlanging
- writing several books - each TW with notes on a particular topic
- a general notes / idea location - zettelkasten-y, for stuff I havent ffigure out / decided where to put it yet, for ideas that are still under exploration at a basic stage, etc.
- worldbuilding
- notes/ resources for various hobbies - lists of meanings, resources, thoughts, etc.
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No, sorry. I’m much too wordy for that. 
21 months ago I described a substantial documentation project done in TW and then listed a number of other things I’d been doing in TW:
Since then, I’ve also started a number of other projects:
- A TW version of my town’s charter
- A wiki to serve as a combination of website and administrative tool for the chess club at GigantiCorp, where I work. That is behind corporate walls, but I do have a somewhat anonymized copy of an older version.
- The wiki, Tiddlywiki for SQL Developers
- A number of version of the Christian Bible as single-wiki documents, with every book, chapter, and verse in tiddlers of their own. First I did the King James Version and then started building out a mechanism to create multiple versions. Currently this includes six versions, four in English and two in Spanish
- Another wiki to store the policies for the Regional School Board of which I’m a member
- And every now and then I work on my Bullshit Bingo wiki, skewering corporate-speak
Now, of this second batch, only the town charter can be considered anything like complete.
Interestingly, there is nothing here about a personal journal. Not only that, almost all my wikis are for other people, instead of (or as well as) for myself.
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I have three work wiki’s. The Primary one is used to share information with the team. It includes guides on how to do certain tasks, information on how the things we support work, incident case studies usually around the strange and difficult to deal with problems that occur. My second one is a rough notes wiki designed for myself and once I’ve tidied things up enough and written it so others can understand I transfer it to the main one. The third is information related to myself and the job that is not team related. Sometimes copies of important emails I’ve received.
For Home the main wiki I use is my Journal Wiki which I’ve split into three separate single wiki’s for now for accessible reasons on my phone. The 'child wiki’s I port over the last days worth of changes to the main one on a regular (usually daily) basis. The child wiki’s catalogue my media library and track activities and appointments. The main one have daily entries along with articles on specific topics, or events. I spend and awful lot of personal time on these three wikis and often think I’ve gone a little overboard on it but this is where I’ve learned the most regarding the features of Tiddlywiki.
I also have a journal regarding my house which I started when my offer to the house was first accepted. It contains information such as event history of the house, furniture details, suppliers and contact information.
I have a family tree wiki which I hope to integrate with journal wiki at some point. There is also a contact one that contains contact information of friends and former colleagues. I have a few creative writing project wiki’s which are mostly my own. I have one archiving the stories, poems and other creative works a colleague who has since passed away shared with me via email over the years.
When Chat-GTP first arrived I started a ‘Conversations-With-AI’ wiki to record my interactions with it and other AI systems but I’ve never subscribed to any of those services and seldom use them any more.
In preparations for holidays (vacations) I usually create (or modify) a wiki that will contain my flight and hotel information as well as information on the places I hope/ plan to visit.
There’s a number of others I seldom use at the moment, often based on ones that others in the community has shared (such as Projectify and Tekan).
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I first used TiddlyWiki for personal notes, but quickly started using it for more diverse use
I currently have multiple local TiddlyWiki :
- one for all background information and planning for a book I am writing
- one to store articles and information I find on the internet for personal use or for my production of scientific mediation videos.
- one to store ideas of conversions and tutorials for Warhammer.
- one for testing modifications and custom scripts before I send them to more important TiddlyWiki. It also store the aforementioned custom scripts for later re-use.
I also use TiddlyWiki to create some “tools” :
- one for managing my army list for Warhammer 40k and create custom cards for units and armies in crusade mode. (currently on hold due to a lack of interest)
- one for managing type 1 diabetes treatment : carbohydrate calculation for your meal and recalculation of your insulin ratio (I’m currently debugging it and plan to make it available for anyone who need it). I had put a test version here, but it was quite unfinished : https://tiddlydiabby-test.tiddlyhost.com/
And I am also promoting TiddlyWiki internally at my job and around me, to our political deciders and public organism. I had two success :
- At my job, we are discussing using it to store information about our ongoing projects. I am currently customizing a TiddlyWiki to test it out.
- Also, as part of a project of the EU commission, we had to create a database of available public funding programs available for local companies who need help for their digital transition. I convinced them to use TiddlyWiki instead of paying a service provider for a wordpress blog. Sadly, it’s quite empty as most public funding programs it displayed were cut-off this year. It’s available online at this address (in french) : Financer la Transition Numérique — un service proposé par le LVDH
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I use TiddlyWiki for… everything!
- personal knowledge base and notes
- a way to generate my personal webpage through a “Public” tag. This lets me generate the wiki with things I want to share, and keep the rest of the wiki private. This includes an RSS feed using @saqimtiaz’s code here Has anyone generated an RSS feed from TiddlyWiki?
- to back a custom sidebar on my computer, with shortcut links, weather radar, etc.
- to power my phone / tablet wallpaper with similar information
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I use Tiddlywiki for:
- Knowledge base for engineering with latex everywhere, sometimes personal notes;
- An interactive translation of the Advanced Dungeons & Dragons books, featuring extensive links, transclusions, and custom CSS (I’m extremely proud of the CSS work).
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jumps up and down excitedly link?!
Oh let me count the ways 
though compared to some of the answers mine seem positively pedestrian!
I have an engineering textbook
A student notebook which I will update with Evans formula plugin and one academic year (maybe this one) push onto my students.
I have a curriculum planning wiki which I need to plan more with.
And a prod it and see what breaks wiki for trying out plugins and wikitext
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Right. Every time I’ve had a leadership role on a committee, practically the first thing I do is to set up a TiddlyWiki with all of the bylaws, handbooks, and other regulatory text that’s out there, freelinked and filled out with metadata. Then the same wiki gets incoming communications and requests, agendas and meeting minutes, roles and terms of members, annual reports, etc. How anyone handles running an organization without TiddlyWiki, I do not know. 
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I can share, it’s not a problem but it’s in Brazilian Portuguese 
I just need to wipe some personal notes
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I use TiddlyWiki…
…to keep track of information I need to have on hand for work
…as a to do list
…for taking notes on reading
…for processing the brainstorming which I write by hand
…for tracking my reading progress across my books
…to produce web materials at Índice central — giffmex.org/b/, some as static htmls
…for the website for my wife and me https://giffmex.org
…for experimenting with new things produced by everyone here
…for documenting how to do things in TiddlyWiki, here: Documenting TW — a non-linear personal web notebook
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I use TiddlyWiki to…
- Keep a listing of Obituaries of Actors, Musicians, Authors, Celebrities that were of interest to me.
- ‘Recreating’ Webpages, Articles, News Clippings.
- Cataloging Custom Content from The Sims games.
- (Beginning) to catalog my eBook Collection - I use Calibre, but I’d like more control over what is displayed, how it’s formatted onscreen, and how additional files (alternate/back covers, misc. art, videos and other errata) are stored and displayed. (my library is currently at nearly 10,000 books - would love it if there were a simple way to convert Calibre’s opf files into tiddlers, without having to edit each one by hand…)
- (Ongoing (Never-Ending? lol) Trial-and-Error Process) Trying to record and keep track of Purchases, both Online and from brick & mortar stores.
- Constantly attempting to push the envelope with new and creative HTML and CSS things within Tiddlers!
And many more various and sundry things…
I’m planning to begin taking my 10+ year records of Movie and TV Show viewing logs from a program named RedNotebook and convert them into Tiddlers so I can add Posters, DVD/Blu-Ray Cover Art, Screenshots, etc., and have the ability to easily add Comments, Notes, Reviews, whatever in fields so it’s all searchable. Thanks for the idea, @Lamnatos !
Oh, and @Springer – I LOVED your Tiddler with the Google Fonts - I have something similar (but much more crude) in one of my reference Tiddlers, but I’m going to steal borrow some ideas from yours
Also (maybe in a separate thread…?) could you perhaps explain a bit more or show some examples of how you did the Field as TextArea? – I’ve long desired to have this functionality as I have several TW’s that make use of Fields, some with ridiculously large amounts of text/HTML/CSS, and it’s a real pain when having to edit them, as you can only see the single line of content at once…
I’m sure the implementation is probably a very simple matter, but I’m just not seeing/getting it. I pasted the code into a Tiddler and it worked, of course, but the actual code itself then appears - How would I incorporate it globally so that I could use it in any Tiddler, and without the code showing?
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Belatedly, I don’t use TW5 at this time (had an experimental one but it didn’t go anywhere and a rogue crawler forced me to take it down). However, I use the Classic edition and competing apps for purposes like:
- worldbuilding (most frequently)
- personal wiki and knowledge base
- guerilla wiki / site-in-a-bottle
Been circling TW5 again now that performance gains in 5.3.7 make it more attractive, but likely for other similar projects, not anything substantially different.
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Classic had/has the same girding as TW later has. Looks good to me.
Both are very agnostic.
Meaning their main architecture avoids “cloud-dependency” and “sharing too early”.
I’m much interested in @jeremyruston’s holding-fast to not becoming a big-bucks “influencer”.
Eek! This post reads a bit paranoid.
Right.
What World are you currently building?
Best, TT
p.s. Nose Is an interesting word. Your cat may “Nose about” being “Nosy” but is it ever “NosEy”? Nosy v. Nosey.
I use my TW as mostly a reading notebook. It started when I was in hospital in 2022 with COVID - I took all the vaccinations but I when they tested me had none of the anti-bodies!
I was in for a week and had my phone and was looking for a lightweight non-linear note taking app for a reading project I was doing. I found TW and installed it on my Android phone using the node.js form and running the server on my Termux app and using the browser as the client.
It started as a specific reading project - I was sixty and reading books written in 1962 my birth year.
When I got home I started adding to a separate Instance of TW my general reading.
I learnt to merge the two instances and created the current one. It focuses on books but is likely to grow.
Firstly to record music/CDs as well as DVDs - then other stuff.
I treat it with backlinks as a Zettelkasten - based on the ideas of Niklas Luhmann who was a local professor here.
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What stands out in this is “personal development” with a “practical tool” (TW) to help.
Am I intuiting correctly?
Best, TT
Most certainly I have the personal motto that “Learning Never Ends” and I have found that TW is an easy mechanism to enhance learning.
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Ah, a fellow fan of linguistics. I didn’t exactly think things through with my current nick. It’s just become a default in recent years. And yeah! Being able to show off that experiment was the reason for keeping it online at all. Turned out, the current trend of out-of-control, misbehaving crawlers was just starting, and TW5 confused them to no end.
As for worldbuilding projects, I’m currently working on The Dream, but my very first TW project in 2007 was also a fictional setting (and I have a third one made with Feather Wiki that’s not active at this time).
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