> For the complete documentation index, see [llms.txt](https://vostok.gitbook.io/logging/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://vostok.gitbook.io/logging/concepts/formatting/special-tokens.md).

# Special properties

Here's the list of all special properties supported by [output templates](/logging/concepts/formatting/output-templates.md):

* `Timestamp` — emits log event timestamp. Supports [format specifiers](/logging/concepts/formatting/format-specifiers.md).

  * Example output: `2019-03-11 19:21:52,755`

* `Level` — emits log event level. Supports a number of special [format specifiers](/logging/concepts/formatting/format-specifiers.md).

  * Example output: `INFO`

* `Message` — emits rendered log event message ([template](/logging/concepts/syntax/message-templates.md) with substituted placeholders).

  * Example output: `Hello, world!`

* `Exception` — prints event's exception along with its stack trace and inner exceptions.

* `NewLine` — emits a platform-dependent newline.

* `Uptime` — emits the number of milliseconds elapsed since application start. Supports [format specifiers](/logging/concepts/formatting/format-specifiers.md).

* `Properties` — emits all properties not mentioned elsewhere in the output template as a JSON object.
  * Example output: `{ "prop1": "value1", "prop2" : "value2" }`