This is a simple version of README which highlights the basic scenario and most commonly used feature

The long and much more detailed advanced-README.md is here

Take full control of the order of your notes and folders by:

• config-driven sorting with wide variety of options, allowing the fullest range of fine-grained ordering, or
• drag and drop via bookmarks integration.

The simplest usage scenario is to sort items via drag and drop:

Another typical scenario is to apply different sorting order per folder:

For detailed instructions and videos go to wiki documentation

More advanced capabilities available through config-driven sorting:

• treat folders and files equally or distinctively, you decide
• fine-grained folder-level or even notes-group-level specification
• support for fully manual order
  • list notes and folders names explicitly in desired order
  • use prefixes or suffixes notation only for more flexibility
  • wildcard names matching supported
  • extract numbers and dates from titles and sort by them
• group and sort notes and folders by notes custom metadata
• support for automatic sorting by standard and non-standard rules
• mixing manual and automatic ordering also supported
• order by compound numbers in prefix, in suffix (e.g. date in suffix) or inbetween
• Roman numbers support, also compound Roman numbers
• grouping by prefix or suffix or prefix and suffix
  • different sorting rules per group even inside the same folder
• simple to use yet versatile configuration options
• configuration stored directly in your note(s) front matter
  • use a dedicated sorting-spec: key in note properties (aka metadata aka frontmatter aka YAML)
• folders not set up for the custom order remain on the standard Obsidian sorting
• support for imposing inheritance of order specifications with flexible exclusion and overriding logic

Create a new note named sortspec in the folder for which you want to configure the sorting

In the top of the new note put the following YAML front matter text:

---
sorting-spec: |
  order-desc: a-z
---

Click the ribbon button ( or on phone) to tell the plugin to read the sorting specification and apply it. The sorting should be applied to the folder. On desktops and tablets the ribbon icon should turn ()

!!! Done! !!!

You should see the files and sub-folders in your folder sorted in reverse alphabetical order, folders and files intermixed

An illustrative image which shows the reverse alphabetical order applied to the root folder of some vault:

Remarks:

• your new sortspec note should look like this except for the syntax highlighting, which could differ
• you will notice that the folders and files are treated equally and thus intermixed
  • the behavior depends on what files and subfolders you have in your folder
• changing the sorting order via the standard Obsidian UI button won't affect your folder, unless...
  • ...unless you deactivate the custom sorting via clicking the ribbon button to make it
• for clarity: the underlying file name of the note sortspec is obviously sortspec.md
• in case of troubles refer to the TL;DR section of advanced README.md
• feel free to experiment! The plugin works in a non-destructive fashion, and it doesn't modify the content of your vault. It only changes the order in which the files and folders are displayed in File Explorer
• indentation matters in YAML -> the two leading spaces in order-desc: a-z are intentional and required
• this common example only touches the surface of the rich capabilities of this custom sorting plugin. For more details go to advanced version of README.md

This comes from the suggestion by TheOneLight in this discussion

Take the instructions from the Basic scenario 1 above and replace the YAML content with:

---
sorting-spec: |
  My first folder name
  My second folder name
  My first file name
  My second file name
  // ... and continue so in the desired order
---

This will enforce the order as you listed inside the YAML

The newly introduced YAML properties editor (Obsidian 1.4 and newer) can make editing the multi-line text properties tricky and confusing. There are short videos here How to create or edit a multi‐line property in Obsidian? which could be helpful:

• how to edit the multi-line text properties in Obsidian properties editor (shift+enter does the magic here)
• how to edit the multi-line text properties in Obsidian source view mode (the classic way, as you did prior to Obsidian 1.4)

The list of automatic sorting orders includes:

• order-asc: a-z - alphabetical order, aka natural
  • 'a' goes before 'z' and numbers are treated specifically and 2 goes before 11
• order-desc: a-z - reverse alphabetical order, aka reverse natural, aka descending alphabetical
  • 'z' goes before 'a' and numbers are treated specifically and 11 goes before 2
• order-asc: true a-z - true alphabetical order
  • 'a' goes before 'z' and numbers are treated as texts and 11 goes before 2
• order-desc: true a-z - true reverse alphabetical order, aka descending true alphabetical
  • 'z' goes before 'a' and numbers are treated as texts and 11 goes before 2
• order-asc: created - by creation date
  • the oldest notes go first. Sub-folders pushed to the top, alphabetically
• order-desc: created - by creation date, descending
  • the newest notes go first. Sub-folders pushed to the bottom, alphabetically
• order-asc: advanced created - by creation date, also for folders
  • the oldest notes and sub-folders go first
  • for sub-folders the creation date of the oldest contained note is taken as folder's creation date
  • sub-folders not containing any notes are pushed to the top, alphabetically
• order-desc: advanced created - by creation date, descending, also for folders
  • the newest notes and sub-folders go first
  • for sub-folders the creation date of the newest contained note is taken as folder's creation date
  • sub-folders not containing any notes are pushed to the bottom, alphabetically
• order-asc: modified - by modification date
  • the most dusty notes go first. Sub-folders pushed to the top, alphabetically
• order-desc: modified - by modification date, descending
  • the most recently modified notes go first. Sub-folders pushed to the bottom, alphabetically
• order-asc: advanced modified - by modification date, also for folders
  • the most dusty notes and sub-folders go first
  • for sub-folders the modification date of the most dusty contained note is taken as folder's modification date
  • sub-folders not containing any notes are pushed to the top, alphabetically
• order-desc: advanced modified - by modification date, descending, also for folders
  • the most recently modified notes and sub-folders go first
  • for sub-folders the modification date of the most recently modified contained note is taken as folder's modification date
  • sub-folders not containing any notes are pushed to the bottom, alphabetically

Remarks: In the above list the -asc stems from Ascending and -desc stems from Descending. The order-desc: and order-asc: can be replaced with more concise < and > variants, for example < a-z instead of order-asc: a-z

...and additional orders and modifiers:

• standard, ui selected - apply whatever order is selected in Obsidian UI of File Explorer
• by-bookmarks-order - reflect the order of selected group of items in Bookmarks
• files-first or folders-first - self explaining
• vsc-unicode or unicode-charcode - tricky for geeks
• by-metadata: modifier to use specific metadata for sorting
• using-extractor: in connection with by-metadata: to use only part of metadata value, for example a date in specified format
• , separator to specify two levels of sorting. When combining folder-level and group-level sorting this allows for up to 4 sorting levels
• advanced recursive modified or advanced recursive created - advanced variants of advanced modified and advanced created. Use with care on larger vaults because the deep scanning of folder descendants can have impact on performance on mobile devices

• \R+, \.R+ or \-R+ for Roman numbers
• \d+, \.d+ or \-d+ for plain numbers or compound plain numbers
• \a+ to extract the last word from title
• \[yyyy-mm-dd], \[yyyy-dd-mm], \[dd-Mmm-yyyy], \[mm-dd-yyyy], \[dd-mm-yyyy], \[Mmm-dd-yyyy], \[yyyy-Www (mm-dd)], \[yyyy-Www] or \[yyyy-WwwISO] to extract dates in various formats

If a folder contains files of various types, e.g. images and .md notes you can extend the sorting rules onto file name extensions and, for example, push JPG files before PNG. Use the a-z. or true a-z. syntax to enable that behavior for alphabetical or true alphabetical order.

The manual ordering of notes and folders can have two meanings:

• by drag & drop, and this is done via Bookmarks integration, enabled by default, or
• by explicitly listing files and folders in the desired order. This is done via the sorting configuration. Refer to the TL;DR section of advanced README.md for examples and instructions

Click the ribbon icon to toggle the plugin between enabled and suspended states.

States of the ribbon icon on large-screen devices (desktops, laptops and tablets like iPad):

• Custom sorting NOT applied. Plugin suspended or enabled, but the custom sorting was not (yet) applied.
• Plugin active, custom sorting applied.
• Syntax error in custom sorting configuration.
• Plugin suspended. Critical error like File Explorer view not available.
• (Only on large-screen mobile devices like iPad). Plugin enabled. but the custom sorting was not applied.

On small-screen mobile devices (phones) the icon is static:

• The icon acts as a button to toggle between enabled and disabled. Its appearance doesn't change

For more details on the icon states refer to Ribbon icon section of the advanced-README.md

• you might need to activate the custom sorting on your mobile separately, even if on a shared vault the custom sorting was activated on desktop
• the Obsidian command palette being easily available (swipe down gesture on small-screen mobiles) allows for quick steering of the plugin via commands: sort-on and sort-off. This could be easier than navigating to and expanding the ribbon
• the ribbon icon is static () and doesn't reflect the state of custom sorting. You can enable the plugin state changes notifications in settings, for the mobile devices only

The plugin could and should be installed from the official Obsidian Community Plugins list at https://obsidian.md/plugins or directly in the Obsidian app itself. Search the plugin by its name 'CUSTOM FILE EXPLORER SORTING'

For other installation methods refer to Installing the plugin section of advanced-README.md

Thanks to Nothingislost for the monkey-patching ideas of File Explorer in obsidian-bartender

Do you want to have a nice-looking horizontal separators in File Explorer like this?

If so, head on to Instruction and more context by @replete
Quick & easy!

This feature is not dependent on the Custom Sorting plugin. At the same time I'm mentioning it here because it is a side effect of a discussion with @replete. We were considering a direct support of the Separators in the plugin. Eventually this boiled down to a very concise and smart CSS-snippet based solution, independent of the plugin. Go, see, copy to the CSS-snippets in Obsidian and enjoy the more grouped look