Privacy File Tools
Browser-local file utilities
Generate checksums, verify file integrity, hash text, and inspect file metadata. Everything runs directly in your browser without uploading a single file.
File Hash Generator
Generate SHA-256, SHA-1 and MD5 checksums for any file.
SHA-256 Checksum
Compute a SHA-256 checksum for file integrity verification.
MD5 Checksum
Generate MD5 checksums for legacy verification. Not cryptographically secure.
Checksum Calculator
Calculate file checksums with multiple algorithms.
Verify File Checksum
Compare a computed hash against an expected checksum.
File Metadata Viewer
Inspect file name, size, type, extension and image dimensions.
Text Hash Generator
Hash any text with SHA-256, SHA-1, SHA-384, or SHA-512.
Your files stay private
Every tool on this page processes files locally in your browser using the Web Crypto API and File API. No file data is ever sent to a server. Your documents, images, and data remain entirely on your device.
Frequently asked questions
- Are these file tools completely free?
- Yes, all tools on this page are completely free to use with no limits.
- Are my files uploaded to a server?
- No. All file processing uses your browser's built-in Web Crypto API and File API. Your files never leave your device.
- What is a checksum?
- A checksum is a short string generated by a hash algorithm from the contents of a file. It is used to verify that a file has not been modified or corrupted.
- Should I use SHA-256 or MD5?
- Use SHA-256 for security. MD5 is only for legacy compatibility and is not cryptographically secure.