NAME

██████╗ ███████╗████████╗ ██████╗ ██████╗
██╔══██╗██╔════╝╚══██╔══╝██╔═══██╗██╔══██╗
██████╔╝███████╗   ██║   ██║   ██║██████╔╝
██╔═══╝ ╚════██║   ██║   ██║   ██║██╔═══╝
██║     ███████║   ██║   ╚██████╔╝██║
╚═╝     ╚══════╝   ╚═╝    ╚═════╝ ╚═╝

The htop alternative for Windows PowerShell.

Beautiful, fast, real-time system monitor for Windows. Built in Rust.

Install • Features • Keys • Themes • Config • License

---

---

Why pstop?

If you've ever missed htop on Windows, your search is over. pstop brings the full htop experience to Windows PowerShell. No WSL, no Cygwin, no compromises.

	pstop	Task Manager	Get-Process
Real-time CPU per-core bars	✅	❌	❌
Memory / Swap / Network bars	✅	Partial	❌
GPU utilization & VRAM bars	✅	Basic	❌
Tree view (process hierarchy)	✅	❌	❌
Search & filter processes	✅	Basic	❌
Kill / change priority	✅	✅	Manual
Mouse support	✅	✅	❌
7 color schemes	✅	❌	❌
Keyboard-driven	✅	❌	❌
Runs in terminal	✅	❌	✅
~1 MB binary, zero dependencies	✅	N/A	N/A

---

Installation

WinGet (Recommended)

winget install marlocarlo.pstop

Chocolatey

choco install pstop

Cargo (crates.io)

cargo install pstop

Don't have Rust/Cargo? Install it in seconds: https://rustup.rs

From GitHub Releases

Download the latest .zip from GitHub Releases, extract, and add to your PATH.

From Source

cargo install --git https://github.com/psmux/pstop

Build Locally

git clone https://github.com/psmux/pstop.git
cd pstop
cargo build --release
# Binary at: target/release/pstop.exe + target/release/htop.exe

All methods install both pstop and htop commands. Yes, you can just type htop on Windows.

Add htop Alias (Optional)

If you only installed pstop and want the htop alias in your PowerShell profile:

pstop --install-alias

This adds Set-Alias htop pstop to your $PROFILE automatically.

---

Features

🖥️ Per-Core CPU Monitoring

Real-time CPU usage bars for every logical core, color-coded by usage type (user / system / virtual), exactly like htop. CPU columns auto-adjust based on core count (2/4/8/16 columns) and terminal size — just like htop's calcColumnWidthCount.

📊 Memory, Swap, Network & GPU Bars

• Mem bar: shows used (green), buffers (blue), cached (yellow)
• Swap bar: swap usage with color threshold
• Net bar: live RX/TX throughput in the header
• GPU bar: overall GPU utilization percentage (shown on GPU tab)
• VMem bar: dedicated video memory usage (shown on GPU tab)

🌳 Tree View

Press F5 or t to toggle process tree view — see parent-child relationships with ├─ / └─ tree connectors, collapsible nodes with +/-.

🔍 Search & Filter

• F3 - Incremental search: jumps to matching process
• F4 - Filter: hides all non-matching processes in real-time

📋 Four Tab Views

• Main - Full process table (PID, USER, CPU%, MEM%, TIME+, Command...)
• I/O - Disk read/write rates per process
• Net - Per-process network bandwidth (live download/upload rates with auto-scaling B/s, KB/s, MB/s, GB/s) plus active connection counts. No admin required.
• GPU - Per-process GPU engine utilization and dedicated/shared video memory usage via PDH performance counters

⚙️ F2 Setup Menu (Full htop Parity)

Press F2 to open the setup menu with 4 categories:

• Meters - Configure header layout (CPU, Memory, Swap, Network, Tasks, Load, Uptime)
• Display Options - 15 toggleable settings (tree view, highlight basename, shadow other users, show threads, detailed CPU time, vim keys, and more)
• Colors - Choose from 7 built-in color schemes with live preview
• Columns - Add/remove/reorder visible columns

🎨 7 Color Schemes

Switch instantly in F2 > Colors:

1. Default - Classic htop green/cyan on black
2. Monochrome - Pure white on black
3. Black Night - Muted tones for dark terminals
4. Light Terminal - Optimized for light backgrounds
5. Midnight Commander - Blue background, MC-inspired
6. Black on White - Clean light theme
7. Dark Vivid - High-contrast neon colors

🖱️ Full Mouse Support

• Click anywhere in the process table to select
• Click column headers to sort
• Click F-key bar buttons
• Click tabs to switch views
• Scroll wheel for navigation

⌨️ Keyboard Shortcuts

Familiar htop keybindings — zero learning curve if you know htop.

💾 Persistent Configuration

All settings auto-save to %APPDATA%/pstop/pstoprc and restore on next launch. Your color scheme, display options, column choices, sort preference... everything persists.

⚡ Performance

• ~1 MB single binary (release build with LTO + strip)
• 50ms event polling for instant keyboard response
• Configurable refresh rate (200ms–10s)
• Native Win32 API calls for I/O counters, process priority, CPU affinity
• Zero runtime dependencies

---

Keybindings

Key	Action
F1 / ?	Help screen
F2	Setup menu (meters, display, colors, columns)
F3 / /	Search processes
F4 / \	Filter processes
F5 / t	Toggle tree view
F6 / >	Sort by column
F7 / F8	Decrease / Increase process priority (nice)
F9 / k	Kill process
F10 / q	Quit
Tab	Switch between Main / I/O / Net / GPU views
Space	Tag process
c	Tag process and children
U	Untag all
u	Filter by user
p	Toggle full command path / process name
H	Toggle show threads
K	Toggle hide kernel threads
+ / -	Expand / collapse tree node
e	Show process environment
l	List open handles (lsof equivalent)
a	Set CPU affinity
I	Invert sort order
Arrow keys	Navigate
PgUp / PgDn	Page through process list
Home / End	Jump to first / last process

Vim Mode (opt-in)

Enable via F2 > Display Options > Vim-style keys, or set vim_keys=1 in your config file. Off by default.

Key	Vim Mode Action	Replaces
j	Move down	(new — default mode has no bare j)
k	Move up	k = kill in default mode
g	Jump to first process	Home
G	Jump to last process	End
Ctrl+d	Half page down	(new)
Ctrl+u	Half page up	(new)
x	Kill process	k / F9
/	Search	(unchanged, works in both modes)
?	Help	(unchanged, works in both modes)

What changes in vim mode:

• k becomes move up instead of kill — use x or F9 to kill
• h no longer opens help — use ? or F1 instead
• j/k work as bare keys (no Alt modifier needed)
• All other keys (F1–F10, Space, u, t, e, l, a, etc.) remain unchanged

What stays the same:

• Arrow keys, PgUp/PgDn, Home/End still work
• All F-key shortcuts (F1–F10) still work
• / for search, \ for filter
• q to quit, Ctrl+C to quit
• All sorting keys (P, M, T, N, I, <, >)
• Tree view (t/F5), tags (Space/c/U), user filter (u)

---

Color Schemes

All 7 schemes affect every UI element — header bars, process table, footer, tabs, popups:

Scheme	Best For
Default	Dark terminals (Windows Terminal, Alacritty)
Monochrome	Minimal / accessibility
Black Night	OLED / very dark terminals
Light Terminal	Light-themed terminals
Midnight Commander	Nostalgic blue background
Black on White	Maximum readability on light bg
Dark Vivid	High contrast, colorful

Change schemes live: F2 > Colors > select > Enter. Preview updates in real-time.

---

Configuration

Settings are saved automatically to:

%APPDATA%\pstop\pstoprc

Format: simple key=value (htoprc-style). Persisted settings include:

• Color scheme
• All 15 display options (including vim keys mode)
• Visible columns
• Sort field & direction
• Update interval
• Tree view state

To enable vim keys from the config file directly:

vim_keys=1

---

System Requirements

• OS: Windows 10 / 11 (x86_64)
• Terminal: Windows Terminal, PowerShell, cmd.exe, or any terminal with ANSI support
• Build: Rust 1.70+ (for building from source)

---

Roadmap

• Publish to crates.io (cargo install pstop)
• Pre-built binaries via GitHub Releases
• WinGet (winget install marlocarlo.pstop)
• Chocolatey (choco install pstop)
• GPU monitoring (per-process GPU engine usage + VRAM, header GPU/VMem bars)
• Network per-process tracking (live bandwidth, no admin required)
• Auto-adjusting CPU column layout (2/4/8/16 columns based on core count)
• Independent htop-style header panel flow (no forced alignment)
• Vim-style keybindings (opt-in j/k/g/G/Ctrl-u/Ctrl-d)
• Scoop bucket
• Custom meter plugins

---

Contributing

Contributions welcome! This is a Rust project using:

• ratatui 0.30 - TUI framework
• crossterm 0.29 - Terminal backend
• sysinfo 0.38 - System information
• windows 0.62 - Native Win32 APIs

git clone https://github.com/psmux/pstop.git
cd pstop
cargo run

---

License

MIT - use it, fork it, ship it.

---

Stop opening Task Manager. Type pstop or its aliases.