When comparing StackEdit vs ONLYOFFICE, the Slant community recommends StackEdit for most people. In the question“What are the best cross-platform writing apps?” StackEdit is ranked 11th while ONLYOFFICE is ranked 19th. The most important reason people chose StackEdit is:
StackEdit works within your browser. You need internet access to connect to the website, but once it's loaded, the site does not require an internet connection - you will be able to edit and save files locally. Additionally, you can use [Fluid](http://fluidapp.com) to turn it into a native desktop application.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Works online and offline
StackEdit works within your browser. You need internet access to connect to the website, but once it's loaded, the site does not require an internet connection - you will be able to edit and save files locally. Additionally, you can use Fluid to turn it into a native desktop application.
Pro Supports various Markdown flavors
Supports standard Markdown and Markdown Extra.
Pro Simple workflow
It is very easy to toggle between the preview and the editing windows. The black makes it a very focused writing environment. Of course it's possible to change that if needed.
Pro Great when in full-screen
Pro No need to install additional software
StackEdit works directly from the browser, there's no need to install additional software as long as you have a web browser installed on your computer.
Pro Real-time preview
The preview shows in a collapsible pane on the right hand side.
Pro Instant publishing
StackEdit allows pushing a document directly to a list of publishing or file storage platforms or any SSH server.
Pro Multiple export options
Can export to .txt, .html and .pdf.
Pro Syncs via Dropbox and Drive
Files can be synchronized through Dropbox and Drive.
Pro Available for Windows, Linux, MacOS, iOS, and Android
ONLYOFFICE offers desktop applications for Linux, Windows, and MacOS that can be connected to the web-based solution for document sharing and collaboration.
Pro High MS Office compatibility
Highly compatible with .docx, .xlsx, .pptx as well as with .odf.
Pro Collaboration capabilities
Pro Can be used as a web app
ONLYOFFICE offers a web-based office suite that can be deployed on your own server using various deployment options, including Docker script and virtual machines with the software pre-installed.
Pro Has a portable version
ONLYOFFICE portable works on almost every Linux distribution.
Pro Advanced work with math equations
Pro Integration with Nextcloud
Easy integration with Nextcloud for collaborative work.
Pro Free and open source
ONLYOFFICE is distributed under AGPL v.3 license with the source code available on GitHub.
Pro Support for add-ons (plugins)
Cons
Con Saves files in browser's local storage
Local storage is limited and if the browser crashes the text can be lost.
Con Cannot be accessed while being offline
Even though the editor itself works offline, you need internet access to open the website and the editor.
Con Lacks a good integrated spell checker
Uses the built-in browser spell checker which may not be as good as spell checkers other editors have. Depending on the browser, of course.
Con Publishing to GitHub requires giving write access to repos
In order to publish documents to GitHub, StackEdit requires writing access to your repos, something which many people may not be comfortable with.
Con Web app
It is a text editor that is running in a browser window, how can you trust this? Not to mention that it needs a lot more system resources than native apps.