File Management Tools
File management utilities - combine, split, convert, and rename files in bulk.
All File Tools (2)
File management and conversion utilities
Combine Files
Merge multiple CSV or text files into one
CSV to JSON Converter
Convert between CSV and JSON formats
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About File Management Tools
Our file management tools help you combine, split, convert, and organize files efficiently in your browser. Whether you're merging CSV exports, converting between data formats, or preparing files for analysis, these tools make file manipulation fast and secure.
All processing happens locally on your device with no server uploads. This means your sensitive data stays private, there are no file size limits imposed by servers, and you can work offline once the page loads.
Common File Tasks
- •Combine multiple CSV files from different reports into a single file
- •Convert CSV data to JSON for web applications and APIs
- •Transform JSON API responses to CSV for spreadsheet analysis
- •Merge text files and logs for unified viewing
- •Prepare data exports for import into different systems
Frequently Asked Questions
How many files can I combine at once?
There's no set limit on the number of files. You can combine dozens of CSV or text files at once, limited only by your browser's memory capacity.
Does CSV to JSON preserve column headers?
Yes, the converter automatically uses the first row as JSON keys. You can also configure custom key names or handle CSV files without headers.
What delimiters are supported for CSV?
Our tools support comma, semicolon, tab, and pipe delimiters. The converter auto-detects the delimiter in most cases, but you can also specify it manually.
Can I preview files before combining?
Yes, you can preview each file's content and reorder them before merging. The combine tool also shows you the final output before downloading.