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The Level Editor is a feature in Geometry Dash which allows players to create their own user levels and share them online for others to play.
The title of a level signifies as its name, having a character limit of 20 characters. Spaces also count as characters when being used for a title name. Level titles are usually limited to alphanumeric characters. The dash, however, can be added by typing a swear word that is restricted by the game. It will turn into a dash and can be used in the title on release. Since the search bar does not permit the use of characters that are not letters or numbers, levels that use dashes at the beginning of their title cannot be searched. Instead, they must be found by searching the creator's levels or scrolling through the options in the search menu. Currently, levels with special characters cannot be uploaded to the server. When the play clicks the plus (+) icon the name writes Unnamed or Level Name.
Since Update 1.9, instead of using the soundtracks used in main levels, there is the option to download other music from the Newgrounds Audio Portal.
Since Update 2.2,instead of using the soundtracks used in main levels and the Newgrounds Audio Portal, you can use 6000+ songs in a music library.
If a Newgrounds song is completely verified, it can be used in the game. To do so, a player must select the gear button in the top right corner, select the "Custom" option, then type in the ID of the desired song. They then must download the song and click the Use button, which will use the song in the level. Anything that pulses to a regular song (such as rings and certain decorations) can also pulse to a custom song, if there is a clear beat. If you have downloaded a song, you can also click the saved songs button to quickly use a downloaded song in your level. However, there is a limit to the number of songs you can have saved. Despite this, in the options menu, there is an option to remove this limit.
In the custom songs menu there is a gear to change the start offset, playtest the music and make the music fade in or fade out.
There is a guideline editor that creates guidelines to the song. You can again put the start offset and you can record the guidelines. You can clear them using the Clear button.
When custom music was added to the game, many people uploaded others' music to their Newgrounds page in order to use specific tracks. They then forced others in the community to scout them (Newgrounds' system of verification for allowing users to upload their songs to the audio portal: more info can be found here) and Newgrounds moderators spent hours of their time deleting these songs. To address this, an internal whitelist of artists whose music would be allowed to be used in the game was created. Prior to March 2020, only the developer could add artists to the whitelist, where now elder moderators can also add to the list.
The level editor contains 60 fonts that the player can choose from:
The chosen font affects the appearance of the attempt count and all text objects in the level. A level can only have one font, and it cannot be changed mid-level.
For more information about objects, see Objects.