Free Online Tool
Adler-32
Generate Adler-32 checksums for fast data integrity checks.
How to Use Adler-32
- Type the exact text whose Adler-32 checksum you need.
- Read the eight-digit uppercase hexadecimal checksum generated in real time.
- Use Copy or Download to save the checksum; changing even one character produces a new value.
Adler-32 keeps two running sums modulo 65,521 and packs them into one 32-bit value. The current component iterates JavaScript UTF-16 code units, so the examples below use ordinary ASCII text.
Examples
Short ASCII text — input:
Hello
Output:
058C01F5
Reference word — input:
Wikipedia
Output:
11E60398
Features
Privacy Focused
All processing happens in your browser. No data is sent to servers.
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