Tiled Map Editor
Tiled supports editing tile maps in various projections (orthogonal, isometric, hexagonal) and also supports building levels with freely positioned, rotated or scaled images or annotating them with objects of various shapes.
If you are looking for a flexible 2D level editor for your game, be sure to give Tiled a try! Tiled is supported by a wide range of frameworks and is still in active development!
I believe software should be free as in freedom, which means you are free to use Tiled for any purpose, to modify Tiled to your needs and finally to distribute Tiled, as-is or modified, on the same terms.
I accept voluntary payments to afford further Tiled development. I'm currently spending two full days/week on Tiled, which is possible thanks to people choosing to pay for Tiled here as well as those supporting me on a recurring basis through GitHub Sponsors, Patreon and Liberapay.
If you enjoy using Tiled and are able to chip in, please set up small monthly donation. Thanks!
Disclaimer: Kronbits is a Tiled sponsor. You can sponsor Tiled at the Banner tier on either GitHub Sponsors or Patreon to see your widget here.