When comparing nvALT vs Joplin, the Slant community recommends Joplin for most people. In the question“What is the best note taking app for Mac?” Joplin is ranked 3rd while nvALT is ranked 10th.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Powerful search syntax
nvALT has a simple text box at the top (similar to that of a web browser) and when you start typing inside it, nvALT immediately displays a drop-down box of all the notes that contain the text you are searching for. The more you type, the more the search is narrowed down.
Pro Lightweight
Pro Free

Pro MultiMarkdown 3 support
Has built-in support for MultiMarkdown 3.
Pro Powerful note-taking features
nvALT is not only used for simple text editing but also as a powerful tool for taking notes, TODOs, phone numbers and every other piece of information that can be stored in a plain-text file.
This is because nvALT is not designed only as a tool to write text, but also as a powerful search and organize tool for plain-text files.
Pro Right to Left support
Pro Offline access
Pro Open source
Peace of mind that there is no malicious piece of software in the app.
Pro Encryption
Pro Cross-platform
Supports Windows, Mac, Linux, Android and iOS.
Pro Supports file attachments
Pro Supports markdown
Pro Supports tags for notes
Pro Web Clipper
Browser extension saves full pages, clean content, or screen selections to new notes.
Pro Optional CLI interface
Provides a CLI interface for terminal lovers.

Pro Supports multiple languages
English, French, and Spanish, Italian, German, Czech and many others.
Pro Active user forum with support from app creators
Support, troubleshooting, and new feature requests are easy to make at the user forum and you can contact the app creator directly.
Pro Dropbox support
Can sync using Dropbox.
Pro Nextcloud support
Pro Timed alarm reminder for to-do lists
Cons
Con Not very powerful as far as text editing goes
nvALT's strength is its search feature. It has some basic text-editing features such as cut, paste, find-and-replace and so on. But it doesn't have any advanced text manipulation features available in other editors.
Con Sync issues with Android
If update on Linux then sync on Android, sometimes the Android sync will duplicate or remove some journal notes. Seems to be a bug in the Android app. The Linux app alone without sync with Android seems to work well using Dropbox. But don't expect changes you make on Android to sync properly back to Linux.
Con Sync issue under Linux
The Linux client has a bug that requires the user to click the mouse frequently in order for sync to proceed. This bug has been open for a while.
Con Gargantuan memory footprint
1GB+ of memory for taking notes.
Con Old school interface
Con Bloated
This project is suffering from feature creep and uses a lot of memory for a note-taking app.
Con App Image launches very slowly
On Linux, you can only install via App Image, which take 5+ seconds to launch. I can launch LibreOffice in under two seconds.
Con Sync issues on Windows
No way to change account settings and sync easily corrupted.
Con Weak tag searching
Joplin can currently only search for a single tag at a time. None of the boolean operators (AND, OR, NOT) are available for use in searches. This greatly diminishes the usefulness of tags in Joplin.
Con Can't create tags from the mobile app
