Powerful knowledge base that works on top of a local folder of plain text Markdown files.
Obsidian vs Zim opinions
Proprietary, meaning: Do you ultimately trust the vendor with your (potentially) most personal information. If not, stick with Zim.
Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. The notes are searchable, can be copied, tagged and modified either from the applications directly or from your own text editor.
Joplin vs Zim opinions
Sadly, Joplin's Notes are proprietary: You cannot easily access your files with a third party tool (like a text editor). Zim (and other tools) keep your files readable and writeable in plaintext.
IT's not so similar to Zim Desktop, it's really near to evernote/nixnote It can be a good replacement too
Joplin caters to a somewhat different user base: more simplistic, quicker, requires way less IT/wiki savvy just to operate daily. It also has pitch perfect syncing which is not Zim's cup of tea. Still, the moving parts are similar, and it can work as an alternative.
With so many tools, it's hard to keep everyone on the same page. Notion is a new tool that unifies them all.
Notion vs Zim opinions
Android Client, Markdown, Built-in trello-like board
Notion is also a wiki and also cross-platform in the sense that it is a web application. It has some features that Zim doesn't, e.g. multi-column layouts.
Capture inspiration from Pinterest, YouTube or web pages, organize ideas in one place and add your notes. Make mood boards or quick sketches to visualize and present ideas!.
NoteLedge vs Zim opinions
As soulrain already said, Zim is a wiki/PIM. Noteledge is a notebook/PIM. They are not the same thing at all.
Zim is a wiki; noteledge, while complex, is unsuited for a wiki.
Standard Notes is a simple and private notes app. It allows you to write and sync your notes across all your devices, iOS, Android, Linux, Windows, MacOS, and web browser.
Standard Notes vs Zim opinions
Zim is a wiki-type encyclopedia software. Standard notes is just a basic notes app.
Google Keep has several features including color coding notes, inserting images, creating lists, geo-fencing, shareable notes, and search by color.
Google Keep vs Zim opinions
Less useful than OneNote yet also proprietary. If you want good features, use the former. If you value privacy, use Zim, any markdown editor or any word processor in general in conjunction with Nextcloud.
Not really an alternative. Zim is both a note taking appa AND note organizer
Microsoft OneNote, part of the Microsoft Office Suite, is a digital notebook application that gives people one place to gather notes and information. It also offers shared notebooks, syncing between multiple computers and devices via Windows...
Microsoft OneNote vs Zim opinions
More functional and user-friendly than Zim. However: Privacy. Ask yourself if you trust Microsoft with your data. If yes, that's ok. Personally however, I'd recommend using open source, self-hosted alternatives like Zim.
Sync'd across OneDrive, has web, desktop, and mobile clients. There are certainly alternatives, but it gets the job done while enabling a good degree of logical organization.
It supports both internal and external links and has good structure. It's also WYSIWYG.
Made by the company behind WordPress, Simplenote enables users to take notes, lists, and ideas. These notes are stored on the cloud and are accessible across multiple devices.
Simplenote vs Zim opinions
Simplenote is much less functional than Zim (no rich-text, no attachment to notes) and although it does work on mobile, it syncs your data via web-facing servers on which your info is held unencrypted. In that respect your information is much more vulnerable to hackers and govt agencies than if you used Zim, stored the data locally and maybe - if you need - sync it with an end-to-end encrypted service like Spideroak, Tresorit or Seafile (Seafile encrypts file content, not metadata).
Free and free of problems. Just simple.
Zettlr is a supercharged markdown editor that combines many writing editor features and collect them in one application. It aims at speeding up your workflow and help you write without any interruptions.
Zettlr vs Zim opinions
Native markdown editor. My new choice after retiring Zim. Good features, even clunkier interface than Zim, yet easy to learn and master.
A hierarchical note taking application, featuring rich text and syntax highlighting, storing data in a single xml or sqlite file.
CherryTree vs Zim opinions
If Zim isn't to your liking, CherryTree might be: open-source, stores data locally, supports instant search, interprets code blocks, and has more text editing features. The only thing it's not good at (yet) is attaching things by drag-n-drop. But that is in development, I hear.
wysiwyg , bug free, easy-to use and versatile interface, encrypted and un-encrypted mode, can import/export data from/to zim keynote html etc . Code box with syntax highlighting feature is nice. Also can import files image etc . Strictly hierarchical. More likely an outlining software.