> **Documentation Index:** Fetch the complete configuration index at https://yandex.ru/dev/maps/ymapsml/doc/en/llms.txt

# Introduction

YMapsML (Yandex Maps Markup Language) is a language developed by the company Yandex for describing geographical data. The term "geographical data" refers to any data that is geographically connected with a place.

YMapsML is used as the format for transferring data between Yandex.Maps services and third-party software. Data in YMapsML format can be displayed on Yandex.Maps, and the [geocoding service](https://yandex.ru/dev/maps/ymapsml/doc/en/maps/geocoder/index.md) uses the same format for returning information about the location of objects.

YMapsML is an open XML format; the formal specification (schema) is available at [https://geocode-maps.yandex.ru/docs/schemas/ymaps/1.x](https://geocode-maps.yandex.ru/docs/schemas/ymaps/1.x), and a description is provided in the [YMapsML Reference](https://yandex.ru/dev/maps/ymapsml/doc/en/ref/concepts/About.md). For editing data in YMapsML format, you can use any text editor; for processing data, choose from the wide variety of software available for working with XML.