Seed Atlas
Seed Atlas is a free map viewer and seed-finding tool for Minecraft.
What Seed Atlas is
Seed Atlas is a free map viewer and seed-finding tool for Minecraft. Select a Minecraft version and enter a seed to explore a map or search a chosen area for biomes, structures, and slime chunks across the Overworld, Nether, and End. Searches can use all available CPU threads, combine conditions, and apply Lua filters. Session files let users save searches and continue them later. The project README says it supports Minecraft releases through 26.3. Seed Atlas is available for Linux, macOS, and Windows under the GNU GPLv3 license, and is based on cubiomes-viewer by Cubitect. It is not an official Minecraft product and is not associated with Mojang or Microsoft. The release notes say it works on M-Series Macs; Intel Macs are expected to work, but the maker says they have not tested them. The Windows installer is unsigned, so Windows Defender may warn that it is unknown. The release notes direct users to the maker's Discord for further support.
Good
- Explores all three Minecraft dimensions
- Searches for biomes, structures, and slime chunks
- Supports combined conditions and Lua filters
- Searches can use all available CPU threads
- Searches can be saved and resumed
Watch out
- Windows installer is unsigned and may trigger a warning
- Intel Mac compatibility has not been tested
- Not an official Minecraft product
Who it suits
Seed Atlas suits Minecraft players who want to preview maps or search seeds for particular biomes, structures, and slime chunks. Its filters and saved sessions may be useful to people building more specific searches.
Verdict
Seed Atlas offers map exploration and configurable seed searches for three Minecraft dimensions. Check the platform notes before installing, particularly for the unsigned Windows installer or an Intel Mac.
The facts
Each one read from Seed Atlas's own pages, with the date it was checked.
What it does
- Advanced search
- Seed searches can combine conditions and use Lua filters.checked 9 Oct 2026
- Advanced searches
- Users can combine search conditions and apply Lua filters.checked 9 Oct 2026
- Compatibility notice
- The project says Seed Atlas is not an official Minecraft product and is not associated with Mojang or Microsoft.checked 9 Oct 2026
- Dimensions
- It can explore biomes and structures in the Overworld, Nether, and End.checked 9 Oct 2026
- How to use
- Users select a Minecraft version, enter a seed, then explore the map or search a selected area.checked 9 Oct 2026
- License
- Seed Atlas is licensed under GNU GPLv3.checked 9 Oct 2026
- Minecraft affiliation
- The README says Seed Atlas is not an official Minecraft product and is not associated with Mojang or Microsoft.checked 9 Oct 2026
- Minecraft versions
- The README says Seed Atlas supports Minecraft releases through 26.3.checked 9 Oct 2026
- Origin
- Seed Atlas is based on cubiomes-viewer by Cubitect.checked 9 Oct 2026
- Performance
- Searches can use all available CPU threads.checked 9 Oct 2026
- Product
- Seed Atlas is a fast map viewer and seed-finding tool for Minecraft.checked 9 Oct 2026
- Saved searches
- Searches can be saved and resumed with session files.checked 9 Oct 2026
- Saved sessions
- Searches can be saved and resumed with session files.checked 9 Oct 2026
- Search
- It searches large areas for biomes, structures, and slime chunks.checked 9 Oct 2026
- Search speed
- Searches can use all available CPU threads.checked 9 Oct 2026
- Support
- The release notes direct users to the maker's Discord for further support.checked 9 Oct 2026
- Worlds
- It lets users explore biomes and structures in the Overworld, Nether, and End.checked 9 Oct 2026
Where it runs
- macOS compatibility
- The release notes say Seed Atlas works on M-Series Macs and should work on Intel Macs, which the author says they have not tested.checked 9 Oct 2026
- macOS support
- The release notes say Seed Atlas works on M-series Macs and should work on Intel Macs, which the maker had not tested.checked 9 Oct 2026
- Windows installation
- The release notes say the Windows installer is not officially signed, so Windows Defender may show a warning because it is unknown.checked 9 Oct 2026
- Windows notice
- The release notes say the Windows installer is unsigned and may trigger a Windows Defender warning because it is unknown.checked 9 Oct 2026
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