Hello, I've just released a new GUI for Elasticsearch called Forest. It has similar functionalities compared to other Elasticsearch GUI (e.g., Cerebro, ElasticVue) except that it provides a powerful REST query editor with autocompletion and integrated documentation. Compared to the Kibana query editor, Forest has a more complete and up to date API specification. Also, it takes into account your Elasticsearch version.
This is the first public release, more features are planned, mostly focusing on text search (e.g., manage and test search templates, synonyms, pipelines). If you are interested in the development of the upcoming features you can check the trello board.
Its currently available as a desktop application for Linux and Windows or as a server application with Docker. You can also test the public demo version.