Word Cloud - Data Visualization Toolbox

What is this tool?

A browser tool that morphologically analyzes Japanese text and turns frequent terms into a word cloud or word bubble. Kuromoji.js extracts parts of speech and joins compound nouns, so phrases such as “data visualization” stay together instead of splitting.

Presets cover a report-ready horizontal layout, a presentation palette, and a dark canvas. You can also skip analysis and load a frequency table to visualize counts you already have.

Features

Text / frequency table input — Paste text, upload a TXT file, or load a word,frequency CSV
Morphological analysis — Kuromoji POS extraction. Join compound nouns, choose nouns/verbs/adjectives/adverbs, drop noise POS (dependent nouns, pronouns, numerals, suffixes), and switch dictionary form vs surface form
Word list — Frequency and share in a table. Click a row or a word in the cloud to exclude it. Select multiple rows to merge
Cloud and bubble — Word cloud (Archimedean / rectangular) and word bubble (circle packing, area encodes frequency)
Style presets — Report, presentation, and dark. Typefaces (sans / serif / rounded), weight by frequency, white / dark / transparent canvas
Color — Sequential frequency palettes, POS, or per-word colors. Rotation includes horizontal only and horizontal + 90°
Readable figures — Title and source, shuffle layout, POS legend, hover for frequency
Export — SVG, high-resolution PNG, and frequency CSV
Project save/load — Save projects to the server and restore them later

How to use

Paste text or load a frequency CSV, then press Generate
Adjust POS, compound nouns, and stop words; exclude noise from the word list
Choose cloud or bubble, then apply a report / presentation / dark preset
Add a title and source
Export as SVG or PNG

Data formats

Text

Paste text or load a .txt file. On generate, the tool analyzes morphology and builds the figure from the selected parts of speech and their frequencies.

Frequency CSV

Use this when word counts are already aggregated. Column 1 is the word, column 2 is frequency, and column 3 (POS) is optional. Headers are detected automatically.

word,frequency,pos
data visualization,12,noun
report,8,noun
slide,5,noun

Output

PNG / SVG — The figure, including title and source
CSV — Extracted words and frequencies