BSArch

newvegas — Mods & Enhancements

BSArch is a command-line utility for packing and unpacking Bethesda game archives, supporting formats like BSA and BA2. With 5,464 endorsements and 727,050 downloads, it's a trusted tool for modders and advanced users who need to manage archive files outside of the game. Last updated in August 2026, it remains actively maintained.

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Downloads, ratings, compatibility info, installation guides, and user reviews.

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Syntax

Utilities

Example

Downloads: 727,050

💡 Notes

By zilav

🎯 Tips & Tricks

Run BSArch from the command line with -h to see all availabl

Run BSArch from the command line with -h to see all available options – it's the best way to learn the syntax

If you're modding Skyrim or Fallout 4, make sure you use the

If you're modding Skyrim or Fallout 4, make sure you use the correct archive format (BSA for Skyrim, BA2 for Fallout 4) to avoid issues

Test packing a small mod first before processing large archi

Test packing a small mod first before processing large archives to ensure your command is correct

🔧 Troubleshooting

Mod conflicts

Check load order. Disable conflicting mods one by one.

⚠️ Common Mistakes

Installing without checking requirements

👍 Pros

Massive community trust – 5,464 endorsements and 727k downloads prove it's the go-to tool for archive work
Actively updated (August 2026) so it stays compatible with current Bethesda games
Command-line power means you can script and automate archive operations easily

👎 Cons

No GUI – if you're not comfortable with command line, this will feel intimidating
No in-game integration – you'll need to manually run it outside of your mod manager
Documentation is minimal – you'll have to rely on community guides or trial and error

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