Free Data & CSV Tools Online
Free online data tools for CSV, JSON, and Excel files. View, convert, analyze, and transform data without uploading to servers.
Convert, view, and transform your data with powerful browser-based tools. No file uploads to servers β everything runs locally in your browser for maximum privacy and speed.
Trusted by Users Worldwide
π Your files are processed locally and never stored on our servers
π₯ Popular Tools
All Tools
CSV Viewer
Upload and view CSV files as interactive, sortable tables with pagination.
CSV to JSON
Convert CSV files to JSON format instantly. Download the result as a .json file.
JSON to CSV
Convert JSON arrays to CSV format. Download the result as a .csv file.
CSV to Excel
Convert CSV files to Excel XLSX format with one click. Download instantly.
Excel to CSV
Convert Excel XLSX files to CSV format. Fast and free in-browser conversion.
JSON Formatter
Format, beautify, and minify JSON data. Validate and fix your JSON online.
Base64 Encoder
Encode text to Base64 or decode Base64 strings back to text instantly.
Coming SoonData Analyzer
AI-powered data analysis tool. Upload data and get instant insights.
Why CSV-X.com?
100% Private
Your files are processed securely with automatic deletion. All processing happens client-side using WebAssembly and JavaScript. No data is sent to any server.
Instant Results
No waiting for server responses. Conversions happen instantly in your browser, even for large files with thousands of rows.
Completely Free
All tools are free to use with no limits. No sign-up required, no watermarks, no file size restrictions.
The Complete Data Toolkit for Developers and Analysts
CSV-X.com provides a comprehensive suite of free online data tools designed for developers, data analysts, and anyone who works with structured data. Whether you need to quickly view the contents of a CSV file, convert data between formats like CSV, JSON, and Excel, or format and validate JSON, our browser-based tools make it fast and easy. Every tool on CSV-X.com processes your data entirely within your web browser, ensuring complete privacy and eliminating the need to upload sensitive information to third-party servers.
Our CSV Viewer lets you open any CSV file and explore it as a fully interactive table with column sorting and pagination. The format conversion tools support seamless transitions between CSV, JSON, and Excel XLSX formats, making it simple to prepare data for different applications, APIs, or spreadsheet software. The JSON Formatter helps you beautify, minify, and validate JSON data with syntax highlighting, while the Base64 Encoder and Decoder handles text encoding tasks that developers encounter daily. All tools are built with modern web technologies including Papa Parse for robust CSV parsing and SheetJS for Excel compatibility, ensuring reliable results every time.
AI Data Visualizer
Paste CSV data and get instant charts. Bar, line, pie, scatter plots.
AI Chart Generator
Create beautiful charts from data. Bar, line, pie, area, radar charts.
Data Cleaning Tool
Clean messy data. Remove duplicates, fix formatting, handle missing values.
AI Report Generator
Generate data analysis reports from CSV. Statistics, trends, insights.
Spreadsheet Formula Generator
Describe what you need and get Excel/Sheets formulas. VLOOKUP, INDEX-MATCH.