Mcgic Circle Generator vs SeedLander

Mcgic Circle Generator creates Minecraft circles, ellipses and sphere slices, with real-time 2D and 3D previews. It runs in a browser and supports shapes from 1 to 512 blocks wide, with block counts, coordinates and a layer-by-layer guide. Builder Mode can guide block placement step by step or let users mark blocks directly on the canvas. Designs can be exported as PNG, SVG, JSON with world coordinates, or a .schem file compatible with WorldEdit and MCEdit. The tool has Dark, Light, Forest, Ocean and Classic themes, and saves settings in the browser to restore the last session without an account. On phones, Controls, Preview and Export tabs accompany pinch-to-zoom and touch panning. Mcgic says projects and exports remain on the user’s device rather than being uploaded automatically, though it may use minimal anonymous analytics and third-party integrations. The generator works with full blocks only; slab and stair circle generation is planned for a future update. It is free, requires no login and is available on the web, Android and iOS.

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.