Professional CSV File Processor

BigCSV is a powerful CSV file processing platform that supports GB-level large files, intelligent data analysis, and multi-format conversion. All data is processed locally to protect your privacy.

Supports GB-level files
Lightning fast
🔒Local processing for privacy
💰Completely free to use

CSV File Processing Preview

Upload your CSV files and instantly get data analysis reports, format conversion, and intelligent processing suggestions

Trusted by Global Data Experts

Data Analysts
Researchers
Developers
Business Analysts

Powerful Features

BigCSV provides comprehensive CSV file processing capabilities, from data analysis to format conversion, making it easy to handle data files of any scale.

Smart Data Analysis

Automatically identify data types, generate statistical reports, detect missing values and anomalies, providing professional data insights.

Data Statistical Analysis

Multi-Format Export

Support export to CSV, JSON, Excel, HTML, Markdown, PDF and other formats to meet different usage scenarios.

CSV · JSON · Excel · PDF

Privacy Protection

All data is processed locally in the browser and will not be uploaded to servers, ensuring your data security and privacy.

Local Processing · Data Security

Lightning Processing

Using advanced Web Worker technology, supports fast processing of GB-level large files with instant results.

GB Files · Second-level Processing
Large File Support

Supports processing GB-level large CSV files without worrying about file size limitations.

Lightning Processing

Uses Web Worker technology for multi-threaded processing, ensuring smooth interface response.

Smart Analysis

Automatically identifies data types and generates detailed statistical analysis reports.

Privacy Protection

All data is processed locally and will not be uploaded to any servers.

Multi-Format Export

Supports export to CSV, JSON, Excel, PDF and other formats.

Encoding Detection

Automatically detects file encoding formats, supports UTF-8, GBK, Big5 and more.

Free to Use

Completely free, no registration required, no usage restrictions, ready to use out of the box.

Professional Tool

A professional CSV processing tool tailored for data analysts and developers.

User Feedback

See what users say about BigCSV

MZ

Michael Zhang

Data Analyst · Tech Company

"BigCSV allows me to quickly process GB-level data files, saving a lot of time. The smart analysis feature is particularly useful."

SL

Sarah Lee

Researcher · Research Institute

"Privacy protection is excellent. All data is processed locally, which gives us peace of mind when handling sensitive data."

DW

David Wang

Product Manager · Internet Company

"The interface is clean and easy to use, with powerful features. The multi-format export function allows me to easily share data with different team members."

EC

Emily Chen

Business Analyst · Consulting Company

"Processing speed is very fast, large files can be opened instantly. The automatic encoding detection feature solved our garbled text issues."

JL

James Liu

Software Engineer · Software Company

"As a developer, I appreciate the technical implementation of this tool. The use of Web Workers keeps the interface smooth when processing large files."

LZ

Lisa Zhao

Finance Director · Manufacturing Company

"Processing large amounts of financial data monthly, BigCSV's batch processing and analysis features have greatly improved our work efficiency."

Start Using BigCSV for Free

Upload your CSV files instantly and experience professional-grade data processing features. Forever free, no registration required, no restrictions, protecting your data privacy.

✅ Forever Free     ✅ No Registration     ✅ No Restrictions     ✅ Privacy Protection