Collected Notes is a note-taking platform that can publish your Markdown notes on the internet. Your notes can be kept private or published on a public webpage. You can author notes using the Collected Notes website or the macOS and iOS applications.

Collected Notes provides support for the following Markdown elements.
| Element | Support | Notes |
|---|---|---|
| Headings | Yes | |
| Paragraphs | Yes | |
| Line Breaks | Yes | |
| Bold | Yes | |
| Italic | Partial | Using underscores (_example_) underlines the word or phrase instead of italicizing it.
|
| Blockquotes | Yes | |
| Ordered Lists | Yes | |
| Unordered Lists | Yes | |
| Code | Yes | |
| Horizontal Rules | Yes | |
| Links | Yes | |
| Images | Yes | The free plan allows you to display images on another website or server. To upload images, you’ll need to subscribe to the premium plan. |
| Tables | Yes | |
| Fenced Code Blocks | Yes | |
| Syntax Highlighting | Yes | |
| Footnotes | Yes | |
| Heading IDs | Partial | Automatically generated. There’s no way to set custom heading IDs. |
| Definition Lists | No | |
| Strikethrough | Yes | |
| Task Lists | Partial | Collected Notes implemented this in a non-standard way. Use a dash and brackets without a space in between (-[x] task).
|
| Emoji (copy and paste) | Yes | |
| Emoji (shortcodes) | No | |
| Highlight | Yes | |
| Subscript | No | |
| Superscript | No | |
| Automatic URL Linking | Yes | |
| Disabling Automatic URL Linking | Yes | |
| HTML | No |