.---.
    |o   o|    null-e
    |  ^  |    ═══════════════════════════════════
    | === |    The friendly disk cleanup robot
    `-----'    Send your cruft to /dev/null!
     /| |\

/dev/null + Wall-E = null-e — like the adorable trash-compacting robot, null-e tirelessly cleans up developer junk and sends it where it belongs.

Fast parallel scanning. Git-aware protection. 8 language plugins, 18 system cleaners, 50+ cache targets. Interactive TUI.

Reclaim 100+ GB — most developer machines accumulate tens of gigabytes of stale node_modules, target/, .venv, Docker images, and IDE caches across dozens of projects.

cargo install null-e
null-e sweep

See CHANGELOG.md for the full release history.

• Multi-language Support — Node.js, Rust, Python, Go, Java, .NET, Swift, Ruby, PHP and more
• Git Protection — 4 levels (none/warn/block/paranoid) to prevent deleting uncommitted work
• Safe Deletion — Moves to trash by default with recovery option, dry-run mode
• Parallel Scanning — Fast multi-threaded directory traversal with rayon + walkdir
• Interactive TUI — 18 scan modes, keyboard navigation, live progress with ratatui
• Analysis Tools — Find stale projects, duplicate dependencies, optimize git repos
• System Cleaners — Xcode, Docker, Android, ML/AI, IDE, Homebrew, Electron, Cloud CLI, and more
• Configurable — TOML config file, CLI flags override, JSON output support
• Cross-Platform — macOS, Linux, Windows

cargo install null-e

Download from GitHub Releases:

# Homebrew (macOS/Linux)
brew install null-e

# AUR (Arch Linux)
yay -S null-e

# Scoop (Windows)
scoop bucket add us https://github.com/us/scoop-bucket
scoop install null-e

docker run -v $(pwd):/workspace ghcr.io/us/null-e

git clone https://github.com/us/null-e.git
cd null-e
cargo install --path .

# Scan current directory for cleanable artifacts
null-e

# Deep sweep — find ALL cleanable items across your system
null-e sweep

# Clean global developer caches (npm, pip, cargo, etc.)
null-e caches

# Interactive TUI mode
null-e tui

# Find stale projects not touched in 6 months
null-e stale ~/projects

# Dry run — see what would be deleted
null-e clean ~/projects --dry-run

     .---.
    |o   o|
    |  ^  |    ┌──────────────────────────────────────────────────┐
    | === |    │                       CLI                         │
    `-----'    ├──────────────────────────────────────────────────┤
     /| |\     │                    Core Engine                    │
               │  ┌──────────┐  ┌──────────┐  ┌──────────┐        │
               │  │ Scanner  │  │ Cleaner  │  │ Analysis │        │
               │  │          │  │          │  │  Tools   │        │
               │  └──────────┘  └──────────┘  └──────────┘        │
               ├──────────────────────────────────────────────────┤
               │                    Modules                        │
               │  ┌────────┐ ┌────────┐ ┌────────┐ ┌────────┐     │
               │  │Plugins │ │Cleaners│ │ Caches │ │ Docker │     │
               │  │(langs) │ │(system)│ │(global)│ │        │     │
               │  └────────┘ └────────┘ └────────┘ └────────┘     │
               └──────────────────────────────────────────────────┘

Create ~/.config/null-e/config.toml:

[general]
default_paths = ["~/projects", "~/work"]

[scan]
max_depth = 10
min_size = 1000000  # 1 MB

[clean]
delete_method = "trash"
protection_level = "warn"

[ui]
sort_by = "size"
use_icons = true

1. Fork the repository
2. Create your feature branch (git checkout -b feat/amazing-feature)
3. Commit your changes using conventional commits
4. Push to the branch (git push origin feat/amazing-feature)
5. Open a Pull Request

WTFPL — Do What The Fuck You Want To Public License.