Build the randomizer you need.
RandEXom is a C# library with interchangeable seed generators, bounded random sources, and helpers for weighted picks, percentages, shuffles, and number ranges.
Read the documentationDownload
Built from the current source on 20 September 2026. The library targets .NET Standard 2.1; the Windows x64 apps require the .NET 8 runtime.
Download RandEXom.dll Download TestOut Download BenchmarkLibrary SHA-256: 781585415b14d979b0c787d75f289f12a1492c0ebb4e37dd862ef684b23d719a. Checksums for all downloads.
Also on GitHub: latest source build release.
Get started
Add the DLL as a project reference, then choose a generator and a seed:
using RandEXom.RandomLib;
var random = new ModuloRandom(seed: 12345);
int value = random.NextInt(0, 100); // 0 through 99
Minimum bounds are inclusive; maximum bounds are exclusive. The source is available in the GitHub repository.
Documentation
Follow four chapters in order, or jump straight to a type. Every guide page shows its chapter and links to the previous and next page.
Looking for one class? Go to the class index. For algorithm papers, book sources, and implementation differences, see research and provenance.
In this source build
The current source adds an item tree with optional removal and empty-endpoint locking, a Random.org seed helper, TestOut examples, and a standalone DLL-loaded benchmark. See the item tree, seed utility, and benchmark results. The date-tagged release contains this build and its checksums.
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