Data analysis tools · client-side

Data analysis tools

Client‑side browser tools for CSV profiling, cleaning, and statistics. Everything runs locally — no upload, no server.

🔒100% browser

📁CSV only

⚡instant preview

🧹no cloud

📄

CSV viewer

Preview tabular data with sortable columns. Raw CSV displayed as interactive table.

⏱️ instant 📁 client‑side

no upload

📋

Dataset summary

Rows, columns, column names, data types (numeric/string) inferred locally.

⏱️ ~1s 🔢 counts

in‑browser

🕳️

Missing values detector

Counts nulls, empties, or NaNs per column. Highlights missing percentage.

📊 per column

client only

👥

Duplicate rows finder

Identifies completely duplicate rows or based on key columns. Shows count.

🧹 cleaning

local

🗑️

Empty column remover

Detects columns that are completely empty / all null and suggests removal.

⚡ instant

no server

📏

Summary statistics

Mean, median, standard deviation, min, max for every numeric column.

📐 central tendency

client

📊

Percentile & quartile

Q1, median, Q3, IQR, any percentile (25th, 75th, 90th…) via local algorithm.

📦 boxplot data

in‑browser

📊

Histogram creator

Generates frequency bins and renders ASCII/Canvas preview (client‑side).

📌 bins: auto

visual

📦

Boxplot creator

Five‑number summary + outliers. Displays boxplot sketch using SVG/Canvas locally.

📈 distribution