CSV Processing Toolkit
Ultimate CSV toolbox integrating cleaning, sorting, conversion and validation
Sort Configuration
About CSV Processing Toolkit
CSV Processing Toolkit is a comprehensive online tool designed for developers, data scientists, and analysts to quickly and securely manipulate CSV files. CSV (Comma-Separated Values) is a universal standard for data exchange, but raw CSV files are often messy, unsorted, or formatted incorrectly for specific application requirements.
Unlike server-side tools that require uploading sensitive data to the cloud, our toolkit runs entirely in your web browser using modern JavaScript engines. This means your data never leaves your device, ensuring 100% privacy and compliance even for large confidential datasets.
Whether you're preparing data for SQL imports, migrating data between CRM systems, or simply cleaning Excel export files, this suite provides six core functions in one interface: intelligent sorting, duplicate removal, format conversion, field extraction, matrix transposition, and structure validation.
Core Features
Common Use Cases
Frequently Asked Questions
Is my data safe? Will you store my CSV?
Yes, your data is absolutely safe. This is a client-side tool, meaning all processing happens in your browser's memory. We do not transmit, store, or view your files. You can even use this tool offline after loading the page.
What is the maximum file size supported?
Performance depends on your device's memory (RAM). Typically, files of 100MB-500MB can be processed smoothly. For files in the gigabytes, dedicated desktop software may be needed, but our optimized engine can efficiently handle most web-based tasks.
How do I fix 'Unclosed Quote' errors through 'Validation'?
This error usually means a cell contains an unescaped quote character ("). Use the "Validate" tab to find the specific row number, then manually correct the file or try opening it in a text editor.
Can I convert Excel (.xlsx) files?
This tool specifically handles plain text CSV data. For Excel files, please first "Save As" CSV format in Excel, then open the generated file here.
Why does numeric sorting put '10' before '2'?
This happens if you're in "Alphabetical" sort mode, where '1' comes before '2'. Switch the sort type to "Numeric" to ensure '2' comes before '10'.
Does it support different encodings like UTF-8?
Yes, the tool uses the browser's default text decoding (usually UTF-8) to read files. It can correctly handle special characters and emojis.