When comparing TagSpaces vs Obsidian md, the Slant community recommends Obsidian md for most people. In the question“What is the best cross-platform note taking app?” Obsidian md is ranked 29th while TagSpaces is ranked 50th.
Ranked in these QuestionsQuestion Ranking
Pro Open source
TagSpaces is free and open source making it easily extendable with the help of extensions.
Pro Your can choose your cloud file storage
Using only files and no databases let's you make the decision with which cloud file sync service to use, making sure your notes are made available on other devices and platforms. It works great with Owncloud, Nextcloud, Dropbox or Google Drive.
Pro No web service or database lock in
The backend is simply the directory and file structure on your harddrive.
Pro No cloud
TagSpaces is running completely offline, sending no data to any cloud based service, unlike many Evernote alternatives.
Pro Locally stored, not dependent on cloud
Pro Lightweight and very customizable
Pro Fast growing
It's becoming more powerful everyday, it seems like they add many functions within several days.
Pro Markdown makes for flatter learning curve
Pro Fast development with regular releases
Pro Helps visualize personal knowledge in ways nothing else allows
Pro Cross-platform: works on Linux, MacOS, and Windows
There is no mobile app yet.
Pro Markdown rather than outline/blocks
This allows you to link notes back and forth really easily.
Pro In-line tagging
Ability to tag-as-you-write and find each occurrence of a tag in the entire vault makes it very easy to organize and retrieve notes
Pro Infinite panes, split panes, lock panes
In Obsidian, pane = window = note = page
Obsidian allows you to open as many notes as you can fit concurrently in your screen. You can split a pane horizontally/vertically. You can lock/link panes so they scroll in sync, useful for and edit & preview modes.
Pro Daily Notes with template
Daily Notes plug-in, when clicked, generates a new note with the current date. Great for journaling and reduces friction in your writing habit.
You can create a custom template for your Daily Note.
Pro Multiple Vaults
A Vault in Obsidian is like a database. Internal links and files are not shared across Vaults. Each Vault is opened with a separate instance of Obsidian. Each Vault can have its unique app settings and plug-ins. Useful if you have distinct/unrelated projects or "data spaces" requiring different workflows and data relations.
Pro Readable as it hides the [[ ]] around links when in Preview mode
This is a big difference, as having to read through long-form texts laden with [[links]] gives friction.
Pro Functionality extensions with a growing number of plugins
Pro Very easy to use and link notes, preserves the standard form of markdown
Linking notes is a game changing feature. Very easy to use and link notes. Their implementation of markdown doesn't deviate from the standard form of markdown and so the same files can be used by other markdown programs without any consequence.
Pro Page previews on hover
When you hover on an internal [[link]], you get to preview the note without opening it on a new pane.
Page preview plugin must be enabled.
Pro Slides for giving presentations from within Obsidian
Easily turn your notes into simple yet sleek powerpoint-style presentations by enabling the Slides plugin and adding the --- separator.
Pro Intuitive and easy to use with an excellent help system built-in
The app doesn't frustrate the user - the built-in help is excellent.
Pro Random Note
A plugin that, when clicked, surfaces a random note from your vault.
Pro Great onboarding experience
The onboarding consists of well-written help documentation (saved as a vault) served in small chunks and organized systematically so that you become familiar with all its features as well as get hands-on experience in real time.
Pro Multiple cursors
A feature unseen in other tools.
From the help doc, "This can be useful when modifying a lot of lines in the same way, for example putting - at the beginning of multiple lines to turn them into a list, or appending [[ to a series of links you’ve copied from elsewhere."
Pro Vim key bindings
Can switch on or off Vim key bindings in the editor settings.
Con It renames your files in order to tag them
The positive side of this drawback is that this way the tags are easily transferred to other platforms by simply syncing them.
Con Setup could be more user-friendly
Con No WYSISYG editor yet (like Typora)
But it's on the backlog, though.
Con Missing a few small things that would otherwise make this product great
Ability to fold headings in View mode (currently in edit mode only).
Ability to add dates that link to a daily note, when that day/note may not yet exist.
Con No mobile app
Con Pretty new software, so at this moment there is a limited amount of resources / howto's available
Con No Table Editing Yet
Con Needs to be polished
They still need time to fix some bugs.
Con Requires .md files
Can't read .txt or other plaintext file formats.