CSV
CSV Tools
100% CLIENT-SIDE

CSV tools that respect
your privacy

Free conversion and manipulation tools that run entirely in your browser. Your data never leaves your device — no uploads, no servers, no tracking.

Popular Tools
CSV to JSON →

Conversion

12 tools

Transform CSV files to and from other formats.

CSV to JSON

Convert CSV files to clean, structured JSON

CSV to XML

Transform CSV into well-formed XML documents

JSON to CSV

Soon

Convert JSON arrays to downloadable CSV

CSV to Excel

Soon

Export CSV data to .xlsx spreadsheets

Excel to CSV

Soon

Import .xlsx files and convert to CSV

CSV to SQL

Soon

Generate SQL INSERT statements from CSV data

TSV to JSON

Soon

Convert tab-separated data into structured JSON output

CSV to JSONL

Soon

Convert CSV rows into newline-delimited JSON (JSONL) format

CSV to YAML

Soon

Transform CSV data into clean, readable YAML documents

CSV to TSV

Soon

Convert comma-separated values to tab-separated format

CSV to HTML

Soon

Generate HTML tables from CSV data for easy web embedding

CSV to Markdown

Soon

Convert CSV data into GitHub-flavored Markdown tables

Manipulation

6 tools

Edit, combine, and transform your CSV data.

Merge CSVs

Soon

Combine multiple CSV files into one

Split CSV

Soon

Break large CSVs into smaller chunks

CSV Editor

Soon

Edit cells, add rows, and fix data inline

Remove Duplicates

Soon

Find and eliminate duplicate rows

Sort CSV

Soon

Sort rows by any column, ascending or descending

Filter Rows

Soon

Keep only rows that match your criteria

Analysis

4 tools

Inspect, explore, and understand your data.

CSV Viewer

Soon

View and explore CSV files in a sortable table

Column Stats

Soon

Get min, max, mean, and distribution per column

Data Profiler

Soon

Automatic data type detection and quality report

Row Counter

Soon

Quick count of rows, columns, and empty cells

Your data never leaves your device

Every tool on CSV Tools runs entirely in your browser using JavaScript. Your files are never uploaded to any server. There's nothing to trust because there's nothing to send. Open the network tab and see for yourself.