MinecraftMaps Pixel Circle Generator vs SeedLander

MinecraftMaps Pixel Circle Generator is a free web tool for planning Minecraft circles, ovals, and ellipses block by block. A live grid changes with the selected dimensions and style, while the page reports the exact block count and equivalent stacks of 64. Thin creates a one-block outline, thick creates a two-block ring, and filled creates a solid disc. Turning off the force-circle lock allows different widths and heights for oval shapes. The current grid can be downloaded as a PNG reference image, and coordinate output is available. The generator fills blocks whose square centers fall inside the chosen circle or oval; outline modes remove inner blocks. Its guidance recommends building one quadrant from the center and mirroring it across the other three for symmetry. Suggested applications include tower walls, silos, pond rims, floors, ceilings, and platforms. MinecraftMaps.com says it began in November 2011 and is not affiliated with Mojang or Microsoft.

SeedLander is a browser-based toolkit for analysing Minecraft seeds in Java Edition and Bedrock Edition, including Java Large Biomes. Its tools cover biome maps, structure searches, ore predictions, slime chunk calculations, portal management, and team collaboration. The structure finder covers 25+ types and provides coordinates for places such as villages, strongholds, temples, mansions, and monuments. SeedLander states that most structure results on Java and Bedrock are 97%+ accurate, while cautioning that they are predictions rather than guarantees. The tools run in the browser using WebAssembly, and seeds are not sent to SeedLander servers for processing. Map, finder, and account pages support touch use on phones and tablets; a dedicated mobile app is on the roadmap. The free Basic plan includes all seed tools, 10 custom markers, and three saved portal pairs. Premium costs £1.99 per month per world and adds unlimited markers and portals, ore tracking, structure completion tracking, notes, and an activity log. A Team add-on costs £2.99 per month per world on top of Premium.