Private file utilities for checksums and Base64
Verify file integrity, encode a file for text transport, or turn Base64 data back into a download.
Technical file tasks, handled on your device
These utilities use standard browser APIs for hashing and encoding. They are useful for quick verification, debugging, and moving small binary files through text-based workflows.
Quick utilities for technical work
- Compare a downloaded file with a published SHA hash.
- Create a Base64 data URL for testing.
- Recover a downloadable file from Base64 text.
Which checksum algorithms are available?
You can calculate SHA-256, SHA-384, and SHA-512 checksums.
Does Base64 reduce file size?
No. Base64 usually increases the text size; it is an encoding format, not compression.