File Tools
Free online file utilities. Batch rename, compress, convert, and process files.
File Transfer
Transfer files between devices with a 6-digit code
Batch Rename
Find and replace text in multiple file names
Add Prefix/Suffix
Add prefix or suffix to file names
Sequence Rename
Rename files with sequence numbers
Date Rename
Rename files with date format
Regex Rename
Rename files using regex patterns
Change Extension
Change file extensions in batch
Image Compress
Compress images to reduce file size
File Compress
Create ZIP archive from files
File Merge
Merge multiple text files into one
Base64 ↔ File
Convert between Base64 and files
CSV ↔ Excel
Convert between CSV and Excel formats
File Type Detect
Detect real file type by content
File Hash
Calculate file hash (SHA-256, SHA-1)
Text Replace
Find and replace text in files
Encoding Convert
Convert file encoding (UTF-8, GBK)
Line Ending
Convert line endings (LF, CRLF)
Why Choose Our File Tools
Local Processing
All files are processed locally in your browser
Batch Processing
Process multiple files at once
No Upload
Files never leave your device