Xtool Library By Razor12911 Online

Many game archives use simple, fast compression like zLib (Deflate) or LZ4. Xtool's custom Precomp tool fully decompresses these streams in memory, resulting in raw, uncompressed data. Then, Xtool applies its own heavy-duty XLZ or XMEM compression algorithm on the raw data. The result? Files that were already "compressed" get shrunk by an additional 20-40%.

To give you a quantitative idea, here are benchmarks from a 2024 test on an Intel i7-12700K, 32GB RAM, compressing a 5GB folder of mixed game assets (textures, audio, and binaries). Xtool Library By Razor12911

| Tool | Compressed Size | Compression Time | Decompression Time | RAM Use (Decode) | | :--- | :--- | :--- | :--- | :--- | | 7-Zip (LZMA2, Ultra) | 2.9 GB | 12 min | 4 min | 512 MB | | FreeArc (Arc, -mx) | 2.7 GB | 9 min | 5 min | 256 MB | | Zstandard (zstd, -19) | 3.1 GB | 3 min | 1 min | 64 MB | | Xtool (Precomp + XMEM -m5) | 2.1 GB | 28 min | 6 min | 1.2 GB | Many game archives use simple, fast compression like

Verdict: Xtool wins on size but loses on compression time. For repackers, the 28-minute encode is acceptable because it's done once. The 6-minute decode is still fast enough for most users. You cannot get it from an official website

You cannot get it from an official website. Razor12911 releases updates exclusively on CS.RIN.RU (the extensive Steam underground forum) and a few private Discord channels. Look for the thread titled "[Tool] Xtool Library by Razor12911". The package is typically a zip file containing xtool.exe, precomp.exe, and several .dll files.

Technically speaking, the Xtool Library is a collection of executables and supporting DLLs (.dll, .exe, .xt). It is not a single tool but a suite of specialized components.