chartli

Original：🇺🇸 English

Translated

Install and use chartli to render terminal charts from numeric text files or stdin.

3installs

Sourceahmadawais/chartli

Added on2026-03-06

NPX Install

npx skill4agent add ahmadawais/chartli chartli

SKILL.md Content

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chartli Skill

Use this skill when an agent needs to visualize numeric data in the terminal as ASCII/Unicode/SVG charts.

Install

sh

npx skills add ahmadawais/chartli

CLI install/use

Instant use:

sh

npx chartli --help

Global install:

sh

npm i -g chartli

What chartli can do

Render chart types:

ascii

,

spark

,

bars

,

columns

,

heatmap

,

unicode

,

braille

,

svg

Read from file path input
Read from stdin when no file is passed
Control output dimensions with
```
--width
```
and
```
--height
```
Render SVG with
```
--mode circles|lines
```

Command templates

From file:

sh

npx chartli <file> -t <type> [--width N] [--height N] [--mode circles|lines]

From stdin:

sh

printf 'x y\n1 10\n2 20\n3 15\n' | npx chartli -t ascii -w 24 -h 8

Per-type examples:

sh

npx chartli data.txt -t ascii -w 24 -h 8
npx chartli data.txt -t spark
npx chartli data.txt -t bars -w 28
npx chartli data.txt -t columns -h 8
npx chartli data.txt -t heatmap
npx chartli data.txt -t unicode
npx chartli data.txt -t braille -w 16 -h 6
npx chartli data.txt -t svg -m lines -w 320 -h 120

Input format

Whitespace-separated numeric rows; optional header row is allowed.

text

day sales costs profit
1 10 8 2
2 14 9 5
3 12 11 3

Repository example assets

```
examples/assets/core-single-series.txt
```
```
examples/assets/core-multi-series.txt
```
```
examples/assets/image-data.txt
```

examples/assets/image-columns-variant.txt