When comparing Microsoft OneNote 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 9th while Microsoft OneNote is ranked 17th. The most important reason people chose Obsidian md is:
It's becoming more powerful everyday, it seems like they add many functions within several days.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Text can be added anywhere like a whiteboard
OneNote allows you to arrange text freely on the digital paper mimicking the way it would be done with a real pen on real paper.
Pro Comprehensive organization methods
Can have multiple 'sections/tabs' at the top like in a web browser with many notes within each 'section/tab'. Also, there can be sections within section groups infinitely. The complete hierarchy looks like this: Notebooks > Section Groups ... Section Groups > Sections > Pages > Sub-pages > Sub-pages.
Pro Supports hierarchical organization of information / notes
OneNote is designed to allow hierarchical organization of information. This is achieved with grouping into the following categories and UI elements (Notebooks, Sections, and Pages). Both Sections and Pages allow additional groupings that can be expanded / collapsed in list view.
This can be incredibly helpful for quickly taking notes and organizing them for work or personal projects.
For example, you could have a Notebook for "Cooking Recipes", with sections for "breakfast, dinner, desserts", where individual recipes would be page entries (i.e. the "Desserts" section would have pages for brownies, chocolate cheesecake etc).
Pro Powerful table editor
Adding and resizing rows and columns is easy and flexible. This makes for an easy way to adjust a note as it grows in content size.
Pro Insert files into your notes
You can add a variety of different files into your notes including images, video, audio, and more.
Pro Strong search features let you quickly find what you're looking for
If you don't want to search through all of your notes, you can narrow it down by specifying the page, section, group, or notebook.
You're not limited to just searching through your text either. You can search for text in images, video recordings, and audio (this is off by default).
Pro All indented lines under the first can be expanded and hidden
Which makes it easy to quickly look at the high level of notes, and then drill deep into each point.
Pro Add notes through email
You can choose what notebook the notes will save to. E-mail notes to your special Onenote e-mail and it will be accessible across all devices.
Pro Stylus and digitizer pen support
OneNote can be used on all touch capable devices via stylus or digitizer pen making for an intuitive and easy way to take notes by hand, which can often be faster or just preferred over typing. It has the best pen input out of any note taking app.
Pro Very similar design for those used to Microsoft programs
If you have experience with other Microsoft programs such as Microsoft Office, you'll feel right at home with the design of OneNote thanks to the similarity of the menus.
Pro Lots of options for customizing fonts
You can fully customize your default font (the color, type of font, and font size). You can override this styles with the same options (and more) in individual notes.
Pro Converts handwriting to text on Windows version
You can take handwritten notes on your mobile device with a stylus or digital pen and then convert the handwriting to text later on your Windows PC.
Pro Article Web Clipper available on desktop and mobile
Has a web clipper extension on Chrome and Edge that can be used for clipping whole articles and images. Web clipping of articles is also available on Chrome mobile through the "Share" option.
Pro Cross-platform
Its available Windows Mobile, Windows Store, Android, a Desktop Version, and a Web app. Apple macOS and iOS are also supported.
Pro Table is sortable
Pro Integrates with other Microsoft services
Integrates well with Outlook, Office, and OneDrive.
Pro Sharing and collaboration
You can share your notes by inviting people with an e-mail, or by giving them a direct URL. You have control over what kind of access the user has on your note (read only, edit) and can revoke it at any time.
OneNote will alert you when a chance is made on your shared note.
Pro Offers flexible encryption
Unlike most other apps, you can selectively password protect, and fully encrypt, individual documents or entire folders. This is especially important to many people with data stored in the cloud. As of early this year, even the free version supports encryption. Microsoft has also enhanced their internal security methods for storing data on OneDrive (where OneNote performs sync), which makes it more secure than most of their competitors (including Evernote).
Pro Mathematical calculations
You can perform mathematical calculations in OneNote like a calculator.
e.g. 1+2=3,
85/4=21.25,
8!=40,320,
7^2=49
Pro Ink to Math
Handwritten mathematical equations can be converted to typed mathematical equations. Moreover, you can ask OneNote to solve the equation too.
Pro Optical character recognition
You can copy / search text in images added to OneNote.
Pro Page versioning
You can view the history of any page and revert to a previous version.
Pro On Android, you can tap a badge to start a note
The badge on Android hovers over on your screen similar to Facebook Messenger's Chat Heads. You can tap it and instantly start jotting down your thoughts without having to flip to the app first.
Pro Import and link calendar events and tasks in Outlook
This is great for taking meeting minutes. You can import all the meeting details, including a checklist of attendees and a link back to the original event in your Outlook calendar. You can tag all the actions coming out of a meeting and you can create linked tasks from them in Outlook. Much quicker and more effective than writing meeting minutes the traditional way.
Pro Browser plugins allow easy saving of web pages
The ability to quickly file away web clippings is a key part of note taking.
Pro Large variety of themes available
You have quite a few options for themes available with illustrated backgrounds. If you want something a bit more simple while still having personality, there are also several color themes.
Pro Fast growing
It's becoming more powerful everyday, it seems like they add many functions within several days.
Pro Lightweight and very customizable
Variety of settings, and community themes & plugins, available from built-in marketplace. Every community plugin is open-source which means you can learn from it and develop your own.
Pro Locally stored, not dependent on cloud
Everything is stored in your device. You can back them up, encrypt and process however you want to. Works completely offline. Read your notes anytime, anywhere.
Pro Backlinking
This allows you to link notes back and forth really easily.
Pro Markdown makes for flatter learning curve
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.
While renaming note link still works.
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 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. Supports nested tags.

Pro Cross-platform: works on Linux, MacOS, Windows, Android and iOS
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 Functionality extensions with a growing number of plugins
Also open for anyone to develop their own extensions/plugins.
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 Helps visualize personal knowledge in ways nothing else allows
The Graph view is more than an aesthetic gizmo. It allows you to grasp and recognise clusters of information, follow branches and easily filter out what you don't want to see. The "animate" option shows how your notes and links have grown organically. With a bit of tweaking to the visuals and the proper theme, your graph might even start to look like a disturbingly "alive", eerie thing.
Pro Random note
A plugin that, when clicked, surfaces a random note from your vault.
Pro Support for tags
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 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 Markdown rather than outline/blocks
Pro Keyboard shortcuts, Vim key bindings
Hotkeys can be customized in settings.
Can switch on or off Vim key bindings in the editor settings.
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 Community of developers building themes and plug-ins
Due to the tool being very developer-friendly, there are tons of cool developments being made to it by 3rd party devs.
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 Git integration
Version Control for your vault with Obsidian Git plugin.
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 Embedding attachments, such as PDF
Variety of file formats are directly embedded in the markdown preview, e.g. markdown, image, audio, video and PDF files.
Pro Calendar
Daily and Weekly notes with Calendar Plugin.
Pro Graph view
A pretty, alternative way to represent links between your notes.
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 Can copy search results and paste as lists and/or links in a new or existing note
Pro Advanced search
Supports extended searching by default. Community plugin called "Vantage" allows to make more advanced queries.
Pro Aliases
Allows to refer to a note with multiple names.
Pro Big and helpful community
There's a Discord server and a forum. Join the community!
Pro Not locked to a provider
No lock-in to a certain company - just markdown files on disk.
Pro Mindmaps
Available as a plugin.
Pro Exporting as PDF
Allows exporting your markdown files as PDFs rendered with all of your plugins.
Pro Math
Uses MathJax.
Pro Templates
Allows to create templates with built-in plugin. There's also powerful community plugin called "Templater".
Pro Diagrams
Uses Mermaid.
Pro Linking to blocks
You can link to a block - e.g.: paragraph, blockquote, heading.
Pro Metadata
Add a custom metadata to a note with YAML front matter.
Pro Sketching
With Excalidraw.
Pro Academic citations
Supports Citations and provides inserting from Zotero.
Pro SQL-like queries
Advanced queries for the data-obsessed with Dataview Plugin.
Pro Workspaces
Saving and loading workspaces.
Pro Built-in Audio Recorder
Pro Folders and file level storage which is open to manage, does not lock navigation
With other options like notion, we can not see how the data is actually stored.
Pro HTML Support
Use HTML in a note.
Pro Incredible tool for PKM (Personal Knowledge Management) which allows anyone who has a computer and an internet connection to think better and create new insights
Pro Helps with planning and organization.
Variety of planning and organization plugins, such as Kanban boards or Day Planner.
Pro Supports importing from other tools
Supports importing from tools such as Notion, Evernote, OneNote, Apple Notes, Bear, Zkn3, TiddlyWiki 5, and Roam Research. Refer to Obsidian Help for more info.
Pro Supports several languages
Translations are made by the community at GitHub repository.
Pro Discord rich presence
Update your Discord status to show your friends what are you working on with Discord Rich Presence plugin.
Pro Syntax highlighting for code blocks
Pro Snapshots, file recovery, trash folder
Pro Copy and paste images easily
When taking notes, you can just grab a print screen from your clipboard and paste into the notes without having to do any file management
Cons


Con Not available for Linux
There is no native Linux client for OneNote available, and most likely will never be created. Users can use the web based client, but a native app would be a better choice for those that use the app frequently.
Con Requires a Microsoft account
You need to have a Microsoft email to sign up for OneNote (Outlook, Hotmail, or Windows Live).

Con Not open-source
This application is proprietary, and thus cannot be modified or freely distributed.
Con The added flexibility means your notes may feel cluttered
Since you can place elements anywhere you'd like on your note, you have to pay attention to how you structure it. For some this added flexibility is a huge selling point, but for others it could become distracting and makes notes feel difficult to digest.
Con Menu/ribbon can feel crammed
OneNote offers a lot of formatting options, which results in a lot of options being crammed into the ribbon. It can feel somewhat cluttered and takes a bit of time to get used to.

Con Sync isn't stable
Many users have reported synchronization issues. While not everyone will experience this, it can be difficult to troubleshoot, with some fixes resorting to editing registry keys in Windows when using the Windows client.
Con Text editing is weird (poor UX)
When clicking in the middle of a note, it adds something like a text-box positioned in the middle. If you move that field to the bottom right, it gets weirder. You can end-up with an empty note, having an empty text-box 1km to the bottom-right of it.
Con Syncing issues
It tells you there are conflicts between a note on the PC and on the Android because of the timing of the synchronization but doesn't try to resolve itself.
Con Platform dependent
The newer versions for Windows and Mac are converging, using the Windows style layout (with a more more consistent and usable UI).
The original OneNote for Mac for example is very different from OneNote for Windows. Because Microsoft has a vested interest in making sure the Windows version is superior, the Mac version tends to lag behind in terms of functionality. Tutorials and other forms of documentation available online generally apply only to the Windows version, which implies non-Windows versions are undocumented.
Even worse, because the documentation rarely, if ever, indicates it only applies to Windows, it's easy to waste hours trying to make non-existent features work. As such, the documentation is "negative documentation" (i.e. worse than no documentation at all).
Con Doesn't automatically sort (by name, size, date)
You can't choose to sort automatically. Just do it manually.
Con No backup on Windows 10 free version
If you accidentally delete a section on the windows 10 free version of Onenote, there is no backup to fall back on.
Con Search function is lacking advanced features
e.g. Searching for "friend" will find "friendship" and "friendly" (because "friend" is at the beginning of the word); using this query will not find words such as "girlfriend" or "boyfriend."
Con Uninspired, bland user interface
Many of OneNote's competitors use Material Design and bold colors to create a minimal, clean looking interface.
OneNote has a bit more of an outdated look and can feel over crowded at times.
Con Annotations can’t be anchored to a photo
If you annotate a photo or some text, then insert some text above it, the annotations don’t necessarily move with the photo and get misplaced.
Con iPad version is behind the Windows version in features
Biggest issue for me is that you’re stuck with the default, example tags - you can’t import custom tags from your Windows copy, or create and delete tags.
Con Some features require external apps
Sort pages, find and replace, etc need external apps called onestatics.
Con You cannot use local OneNote files with the version of OneNote that is included with Windows
There is a difference between the OneNote that is included with Windows 10 and the OneNote that comes with Microsoft Office. The version included with Windows cannot use local OneNote files and requires you to be online to access your notes.
See here for this and other differences.
Con Closed Source
Con Proprietary software lock-in
Creates dependence on the application with the promise that the content is yours but that cannot be entirely true without the application being free and open source software. You will end up altering the way you create the content to take advantage of Obsidian features and your processes will evolve for its workflows. This replicates the lock-in pain that people experience moving their highly personal information from one proprietary platform to the next when that initial platform stops serving them well, goes out of business, or becomes a bad actor.
Con No table editing yet
(Available as a plugin).
Con Needs to be better at block level references, searches, tagging
For example, if you want a tag a block of text, for obsidian, its the whole page that will get tagged.
Con Does not export to MS Word
Can export only as a PDF file.
Con Requires .md files
Can't read .txt or other plaintext file formats. Can't read asciidoc files.
(Available with a plugin.)
Con Pretty new software
At this moment there is a limited amount of resources / howto's available.
Con No ability to add dates that link to a daily note, when that day/note may not yet exist
You can create a backlink which doesn't yet exist; it just doesn't auto-fill for you. (Available as a plugin)
Con Too many plugins
Con iOS version works only with icloud
Does not work with other cloud folders.
Con Needs to be polished
They still need time to fix some bugs.
Con V1.0 release is terrible
Don't download unless you can't find pre 1.0 version.
