word-cloud-generator

name	word-cloud-generator
description	Generate styled word clouds from text with custom shapes, colors, fonts, and stopword filtering. Supports PNG/SVG export and frequency dictionaries.

Word Cloud Generator

Create visually appealing word clouds from text, files, or word frequency dictionaries. Customize shapes, colors, fonts, and export to multiple formats.

Quick Start

from scripts.wordcloud_gen import WordCloudGenerator

# From text
wc = WordCloudGenerator("Python is amazing. Python is powerful. Code is fun.")
wc.generate().save("cloud.png")

# From file
wc = WordCloudGenerator.from_file("article.txt")
wc.colors("plasma").max_words(100).generate().save("cloud.png")

# From frequency dict
frequencies = {"python": 50, "code": 30, "data": 25, "analysis": 20}
wc = WordCloudGenerator(frequencies=frequencies)
wc.shape("circle").generate().save("cloud.png")

Features

• Multiple Input Sources: Raw text, text files, or word frequency dictionaries
• Shape Options: Rectangle, circle, or custom mask images
• Color Schemes: 20+ matplotlib colormaps or custom color lists
• Font Selection: Use system fonts or custom font files
• Stopword Filtering: Built-in English stopwords + custom additions
• Export Formats: PNG, SVG

API Reference

Initialization

# From text string
wc = WordCloudGenerator("Your text here")

# From frequency dictionary
wc = WordCloudGenerator(frequencies={"word": count, ...})

# From file
wc = WordCloudGenerator.from_file("path/to/file.txt")

Configuration Methods

All methods return self for chaining.

# Shape options
wc.shape("rectangle")           # Default rectangle
wc.shape("circle")              # Circular cloud
wc.shape(mask="logo.png")       # Custom shape from image

# Color schemes (matplotlib colormaps)
wc.colors("viridis")            # Default
wc.colors("plasma")             # Purple-yellow gradient
wc.colors("coolwarm")           # Blue-red diverging
wc.colors("Set2")               # Categorical colors
wc.colors(custom=["#FF0000", "#00FF00", "#0000FF"])  # Custom colors

# Font settings
wc.font("/path/to/font.ttf")    # Custom font file

# Stopwords
wc.stopwords(use_default=True)                    # Use built-in stopwords
wc.stopwords(words=["custom", "words"])           # Add custom stopwords
wc.stopwords(words=["the", "and"], use_default=False)  # Only custom

# Word limits
wc.max_words(200)               # Maximum words to display (default: 200)
wc.min_word_length(3)           # Minimum word length (default: 1)

# Size
wc.size(800, 400)               # Width x Height in pixels

Generation and Export

# Generate the word cloud
wc.generate()

# Save to file
wc.save("output.png")           # PNG format
wc.save("output.svg")           # SVG format (auto-detected)
wc.save("output.png", format="png")  # Explicit format

# Display (matplotlib)
wc.show()

# Get word frequencies
freqs = wc.get_frequencies()    # Returns dict of word: frequency

Color Schemes

Popular Colormaps

Name	Description
viridis	Blue-green-yellow (default)
plasma	Purple-orange-yellow
inferno	Black-red-yellow
magma	Black-purple-white
cividis	Blue-yellow (colorblind-safe)
coolwarm	Blue-white-red
RdYlBu	Red-yellow-blue
Spectral	Rainbow spectrum
Set1	Bold categorical
Set2	Muted categorical
Pastel1	Soft categorical
Dark2	Dark categorical

Custom Colors

# Hex colors
wc.colors(custom=["#1a1a2e", "#16213e", "#0f3460", "#e94560"])

# Named colors
wc.colors(custom=["navy", "royalblue", "cornflowerblue", "lightsteelblue"])

Shape Masks

Built-in Shapes

wc.shape("rectangle")  # Default
wc.shape("circle")     # Circular
wc.shape("square")     # Square

Custom Mask Images

Use any image where white areas are filled with words:

# Use logo or shape image as mask
wc.shape(mask="company_logo.png")
wc.shape(mask="heart.png")
wc.shape(mask="map_outline.png")

Mask Image Requirements:

• White (#FFFFFF) areas will be filled with words
• Black/dark areas will be empty
• Works best with high-contrast images
• Recommended: 800x800 pixels or larger

CLI Usage

# Basic usage
python wordcloud_gen.py --text "Your text here" --output cloud.png

# From file
python wordcloud_gen.py --file article.txt --output cloud.png

# With options
python wordcloud_gen.py --file data.txt \
    --shape circle \
    --colors plasma \
    --max-words 150 \
    --output cloud.png

# Custom mask
python wordcloud_gen.py --file speech.txt \
    --mask logo.png \
    --colors Set2 \
    --output branded_cloud.png

# SVG output
python wordcloud_gen.py --text "Hello World" --output cloud.svg

CLI Arguments

Argument	Description	Default
--text	Input text string	-
--file	Input text file path	-
--output	Output file path	wordcloud.png
--shape	Shape: rectangle, circle, square	rectangle
--mask	Custom mask image path	-
--colors	Colormap name	viridis
--max-words	Maximum words	200
--min-length	Minimum word length	1
--width	Image width	800
--height	Image height	400
--font	Custom font file	-
--no-stopwords	Disable stopword filtering	False
--stopwords	Additional stopwords (comma-separated)	-

Examples

Basic Word Cloud

text = """
Python is a versatile programming language. Python is used for web development,
data science, machine learning, and automation. Python's simplicity makes it
perfect for beginners while its power serves experts.
"""

wc = WordCloudGenerator(text)
wc.colors("plasma").generate().save("python_cloud.png")

Frequency-Based Cloud

# Word frequencies from analysis
tech_terms = {
    "Python": 100,
    "JavaScript": 85,
    "Machine Learning": 70,
    "API": 65,
    "Database": 60,
    "Cloud": 55,
    "DevOps": 45,
    "Kubernetes": 40,
    "Docker": 38,
    "React": 35
}

wc = WordCloudGenerator(frequencies=tech_terms)
wc.shape("circle").colors("Set2").generate().save("tech_cloud.png")

Branded Word Cloud

# Use company logo as mask
wc = WordCloudGenerator.from_file("company_values.txt")
wc.shape(mask="logo_white_bg.png")
wc.colors(custom=["#003366", "#0066cc", "#3399ff"])
wc.font("/fonts/OpenSans-Bold.ttf")
wc.generate().save("branded_cloud.png")

Article Analysis

# Analyze article removing common words
wc = WordCloudGenerator.from_file("news_article.txt")
wc.stopwords(words=["said", "according", "reported"])  # Add domain stopwords
wc.min_word_length(4)
wc.max_words(100)
wc.colors("RdYlBu")
wc.generate().save("article_themes.png")

# Get top words
top_words = wc.get_frequencies()
for word, freq in list(top_words.items())[:10]:
    print(f"{word}: {freq}")

Dependencies

wordcloud>=1.9.0
matplotlib>=3.7.0
Pillow>=10.0.0
numpy>=1.24.0

Limitations

• SVG export converts from PNG (not native vector)
• Very large texts may be slow to process
• Custom fonts must be TrueType (.ttf) or OpenType (.otf)
• Mask images work best with simple, high-contrast shapes