Modded 7zip For Lz4 May 2026

Simply right-click the .lz4 file and choose "Extract Here" or "Extract to [Folder]". 7-Zip ZS handles this natively.

Yes, if:

No, if:

For the rest of us—the tinkerers, the modders, the impatient power users—a modded 7‑Zip with LZ4 isn’t just a tool; it’s a speed upgrade for your entire workflow. Go try it. Archive a 5 GB folder in 5 seconds. You’ll never wait for LZMA again.

Have you tried a modded 7‑Zip fork? Share your LZ4 compression speeds in the comments below or join the discussion on r/DataHoarder.

Further reading:

While the official 7-Zip version is legendary for its LZMA and LZMA2 performance, it does not natively support the LZ4 algorithm for creating or opening archives. To use LZ4 within the 7-Zip interface, you must use a "modded" or plugin-enhanced version. What is LZ4 and Why Use It?

LZ4 is a lossless compression algorithm optimized for extreme speed over high compression ratios.

Speed: It can compress at over 500 MB/s and decompress at several GB/s per core, often reaching the limits of your RAM's speed.

Use Case: It is ideal for real-time applications, large-scale backups where time is more critical than disk space, or gaming assets where fast loading is essential. Popular "Modded" 7-Zip Versions for LZ4

Several community projects have integrated LZ4 support directly into the 7-Zip environment. Releases · mcmilk/7-Zip-zstd - GitHub

While the official 7-Zip homepage provides powerful compression using the LZMA and LZMA2 algorithms, it does not natively support newer, high-speed codecs like LZ4. For users who prioritize extreme speed over maximum compression ratio, a modded 7-Zip for LZ4 is the essential solution. What is Modded 7-Zip for LZ4?

A "modded" version of 7-Zip refers to a build of the open-source software that has been patched or extended to include additional compression methods. The most popular versions are 7-Zip ZS (Zstandard) and the Modern7z plugin. These mods allow 7-Zip to handle: LZ4: An extremely fast lossless compression algorithm. modded 7zip for lz4

Zstandard (zstd): A modern algorithm that balances high speed with competitive compression ratios.

Brotli & Lizard: Specialized codecs for web assets and high-speed decompression. Why Use LZ4 in 7-Zip?

Standard 7z compression (LZMA2) is designed for "ultra" compression, which can be CPU-intensive and slow. LZ4 changes the priority:

Blazing Speed: LZ4 offers compression speeds of roughly 400–500 MB/s per core and decompression speeds that often saturate RAM bandwidth (multiple GB/s).

Real-Time Performance: It is ideal for live backups or moving large data sets where waiting for a progress bar is not an option.

Low Latency: Useful for developers or gamers who need to extract data quickly without a heavy CPU hit. Top Modded Versions and Plugins

The most prominent "modded" version of 7-Zip that integrates

(7-Zip ZStandard Edition), maintained by Tino Reichardt (mcmilk).

While standard 7-Zip focuses on maximum compression (LZMA/LZMA2), this mod transforms it into a high-performance tool by adding real-time, high-speed codecs often used in data centers and gaming. ⚡ The Core Mod: 7-Zip ZS

This is the "interesting" version you are likely looking for. It is a fork that adds several modern compression methods directly into the 7-Zip UI and command line. Supported Codecs: Adds LZ4, Zstandard (Zstd), Brotli, Lizard, and Lz5. The LZ4 Advantage: LZ4 is designed for extreme speed

over compression ratio. It can compress at ~400 MB/s per core and decompress at several GB/s.

Ideal for large backups where you care more about finishing the task quickly than saving every last MB of disk space. 🏗️ Why LZ4 in 7-Zip is Different Most people use 7-Zip for Simply right-click the

files, which default to LZMA. Using LZ4 within the 7-Zip framework provides a unique middle ground: The ".7z" Wrapper: You get the metadata benefits of the

format (like strong AES-256 encryption and solid compression) but with the "instant" speed of LZ4. Hash Algorithm Choice:

The mod allows you to swap hash algorithms (XXH32, XXH64) to match the high speed of the compression, preventing the checksum process from becoming a bottleneck. Multithreading:

Unlike some early implementations, this mod fully leverages modern multi-core CPUs for LZ4 tasks. Microsoft Community Hub 📂 Other Notable Alternatives

If you are exploring "modded" 7-Zip ecosystems, these tools also leverage LZ4 through the 7-Zip codebase:

A modern fork of 7-Zip for Windows 10/11. It includes many of the 7-Zip ZS codecs (including LZ4) and integrates better with the modern Windows context menu. Total Commander Plugins

Many power users use 7-Zip LZ4 plugins within file managers like Total Commander to handle game assets or log files that require rapid decompression. Unity Discussions 💡 Quick Comparison: LZ4 vs. Default (LZMA2) LZ4 (Modded) LZMA2 (Standard) 🚀 Blazing Fast 📉 Low/Moderate 🏆 Excellent 🧊 Low (Efficient) 🔥 High (Heavy) Primary Use Logs, Game Assets, Real-time Archiving, Long-term storage Pro-Tip for the Write-up If you're writing about this, focus on the "Bottleneck Shift."

In standard 7-Zip, the CPU is usually the bottleneck. With modded LZ4, the bottleneck almost always shifts to your Drive I/O (Disk Speed)

because the algorithm is faster than most SSDs can write data. between these versions or find the official download links for the latest stable build?

mcmilk/7-Zip-zstd: 7-Zip with support for Brotli, Fast ... - GitHub

To prepare a feature for a "modded 7-Zip for LZ4," you should look at the existing 7-Zip ZS (Zstandard Edition)

, which is the primary "modded" fork that integrates the LZ4 algorithm into the 7-Zip interface. Core Functionality The feature integrates the LZ4 v1.10.0 Crucial Settings:

lossless compression algorithm, which is optimized for high-speed performance. Ultra-Fast Performance : Provides compression speeds up to 400 MB/s per core and multi-GB/s decompression speeds. Compression Levels : Supports levels 1 through 12 , with a high-compression derivative called available for better ratios at the cost of CPU time. 7z Container Support : Allows wrapping LZ4 streams directly within the standard container format. Implementation Specs

If you are developing or documenting this feature, the following technical details from the 7-Zip-zstd GitHub are essential: : The reserved method ID for LZ4 in this mod is Command Line Usage : Use the switch to specify the algorithm. Block Compression

: The input stream is divided into equal blocks, allowing each block to be compressed in a separate thread for multi-core acceleration. BCJ2 Filter Warning

: When compressing binaries (like .exe or .dll) using the LZ4 plugin, you must explicitly disable the BCJ2 filter using Distribution Options Standalone Fork : You can install the full modded version using with the command winget install -e --id mcmilk.7zip-zstd Plugin Only

plugin allows adding LZ4 support to a standard 7-Zip installation without replacing the entire application. configuration guide

for using LZ4 in automated backups or large-scale data transfers?

mcmilk/7-Zip-zstd: 7-Zip with support for Brotli, Fast ... - GitHub

If you need LZ4 but hate modding:

If you don’t want a modded build, use native tools:

When you download a properly modded version, you unlock specific workflow benefits:

Do not download from the official 7-zip.org site.