10 CLI Tools That Will Make You Love the Terminal

Bar charts, QR codes, ASCII art, JSON formatting, calendar, system stats — all from your command line. Zero dependencies, one pip install.

$ pip install evolver-tools
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CLI Tools
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#1
chart-cli — Terminal Charts
visual data
Bar charts, line charts, pie charts — right in your terminal. Feed it any CSV data and get an instant visualization. No matplotlib, no browser, no GUI.
chart-cli — vertical bar chart
$ echo 'month,sales Jan,120 Feb,200 Mar,150 Apr,280 May,220 Jun,310' | evtool chart-cli bar █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ ─────────────────── 120 200 150 280 220 310
$ evtool chart-cli bar sales.csv # also: line, pie, histogram
#2
qrcode — QR Codes in Terminal
visual fun
Generate QR codes from any text or URL. Save as image or display in terminal. Perfect for sharing WiFi passwords, links, or contact info.
qrcode — scanning this takes you to the GitHub repo
$ evtool qrcode 'https://github.com/evolver-dev/evolver-tools' ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▐██████████████ ██████████████▌ ▐██ ██ ██ ██▌ ▐██ ██████ ██ ██ ██████ ██▌ ▐██ ██████ ██ ██ ██████ ██▌ ▐██ ██████ ██ ██ ██████ ██▌ ▐██ ██ ██ ██▌ ▐██████████████ ██ ██ ██ ██ ██ ██████████████▌ ▐ ▌ ▐ ██ ██ ██ ██ ▌ ▐ ██████ ██ ▌ ▐ ██ ██ ██ ▌ ▐ ██ ██ ██████ ▌ ▐██████████████ ████████████▌ ▐██ ██ ██ ██▌ ▐██ ██████ ██ ██ ██▌ ▐██ ██████ ██ ██ ██▌ ▐██ ██████ ██ ██ ██▌ ▐██ ██ ██ ██▌ ▐██████████████ ████████████▌ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
$ evtool qrcode 'Your text here' # also: --save qr.png
#3
json-pretty — JSON Formatter
data devops
Format, validate, minify, sort, and colorize JSON — from files or stdin. Essential for API debugging, config files, and log analysis.
json-pretty — from ugly JSON to readable
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$ echo '{"name":"evolver-tools","version":38,"tools":259,"features":["zero-deps","cross-platform","one-install"]}' | evtool json-pretty =======
$ echo '{"name":"evolver-tools","version":38,"tools":258,"features":["zero-deps","cross-platform","one-install"]}' | evtool json-pretty >>>>>>> 1608f1debabdd173435d9e417b841e3b668004e0 { "name": "evolver-tools", "version": 38, "tools": 259, "features": [ "zero-deps", "cross-platform", "one-install" ] }
$ evtool json-pretty data.json # also: --minify, --sort, --validate
#4
banner-gen — ASCII Banners
visual fun
Generate ASCII art banners in 4 different styles — block, simple, wide, big. Perfect for splash screens, README headers, and CI/CD intro messages.
banner-gen — block style
$ evtool banner-gen 'Hello World' H H EEEEE L L OOO W W OOO RRRR L DDDD H H E L L O O W W O O R R L D D HHHHH EEE L L O O W W W O O RRRR L D D H H E L L O O W W W O O R R L D D H H EEEEE LLLLL LLLLL OOO W W OOO R R LLLLL DDDD
$ evtool banner-gen 'My Header' # styles: block, simple, wide, big
#5
csv-stats — CSV Data Analysis
data devops
Instant CSV analysis without Pandas. Detect column types, calculate descriptive statistics, show histograms, frequency tables, and correlation matrices. Zero dependencies.
csv-stats — analyzing a CSV dataset
$ evtool csv-stats sales.csv Column: sales Type: numeric Count: 6 Missing: 0 Mean: 213.3 Min: 120 Std: 75.6 Max: 310 P25: 162.5 Median: 210 P75: 267.5 Histogram: 120 - 167 █████████████ 167 - 215 ███████████████████ 215 - 262 █████ 262 - 310 █████████████
$ evtool csv-stats data.csv # also: --json, --sample N
#6
calendar-cli — Terminal Calendar
utility visual
Display any month or year as a formatted calendar in your terminal. Highlights today's date. Useful for scheduling, planning, and avoiding context switches.
calendar-cli — June 2026 (today highlighted)
$ evtool calendar-cli 2026 6 June 2026 Mo Tu We Th Fr Sa Su 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
$ evtool calendar-cli 2026 12 # year and month optional
#7
ascii-gen — ASCII Art Generator
fun visual
Convert text to ASCII art in 8 different styles. Includes figlet fonts, banner styles, and decorative frames. Great for README badges, CI/CD splash, or just having fun in the terminal.
ascii-gen — figlet-style
$ evtool ascii-gen 'evolver tools' ╔═══════════════╗ ║ evolver tools ║ ╚═══════════════╝
$ evtool ascii-gen 'Hello from CLI' --style big # 8 styles available
#8
colors — Terminal Color Picker
visual tool
Preview all 256 terminal colors and 16 standard colors. Essential for theme development, terminal customization, and ANSI color reference. Shows both foreground and background colors.
colors — terminal color chart
$ evtool colors Basic 16 colors: Color 0 Color 8 Color 1 Color 9 Color 2 Color 10 Color 3 Color 11 Color 4 Color 12 Color 5 Color 13 Color 6 Color 14 Color 7 Color 15 256-color chart (bg): 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 ... (all 256 colors)
$ evtool colors # also: --fg for foreground
#9
sysmon — System Monitor
visual devops
Real-time system monitoring in your terminal. CPU, memory, disk, network, and processes — all in a beautiful TUI. Like htop, but zero dependencies and works everywhere Python runs.
sysmon — TUI system monitor
$ evtool sysmon ┌────────────────────────────────────────────┐ │ CPU ████████░░░░░░ 45.2% │ │ MEM ██████████░░░░ 62.8% 3.2G/5.1G │ │ DSK ██████░░░░░░░░ 34.1% 128G/375G │ │ NET ↑ 1.2 MB/s ↓ 3.4 MB/s │ ├────────────────────────────────────────────┤ │ PID NAME CPU% MEM% │ │ 102 python3 12.3 8.2 │ │ 756 chromium 8.7 14.5 │ │ 321 dockerd 3.1 2.0 │ └────────────────────────────────────────────┘
$ evtool sysmon # Ctrl+C to exit
#10
hexdump — Binary Inspector
devops data
View binary data in hex + ASCII format. Essential for debugging file formats, network protocols, and binary data. Handles piped input and files.
hexdump — inspecting binary data
$ echo 'Hello evolver-tools!' | evtool hexdump 0000000 6548 6c6c 206f 7665 6c6f 6576 2d72 6f74 0000010 6c6f 2173 000a
$ evtool hexdump binary.file # pipes and files both work

All 262 tools, one command

JSON processors, CSV analyzers, network tools, system monitors, ASCII art,
crypto utilities, file managers, text processors, and more.

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