Why can text and a file with the same visible words hash differently?
Text mode hashes the exact UTF-8 encoding of the entered characters. File mode hashes every raw byte, including a byte-order mark, line endings, and metadata.
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Security
SHA-256 Hash Generator
Generate a lowercase SHA-256 digest for UTF-8 text or any local file up to 100 MB, including a valid empty file. Web Crypto runs entirely in your browser.
Hashed as UTF-8 bytes · up to 1,000,000 Unicode characters · processed locally
41 chars · 41 UTF-8 bytes
SHA-256
The digest for the current text or file will appear here.
Three simple steps
How to use SHA-256 Hash Generator
- 01
Choose UTF-8 text or raw file bytes.
- 02
Enter text or select a local file, then generate SHA-256.
- 03
Copy the 64-character lowercase hexadecimal digest.
Privacy first
Tool data and site requests stay separate
Tool input and results are processed in temporary state for the current page. The TabPebble application does not send them to a server, write them to a database, or create processing history. Pages and code still load through ordinary network requests. Your browser may restore a tab, while downloads and clipboard copies remain on the device until you remove or replace them.
- No tool-task upload
- No account
- No processing history
FAQ
Frequently asked questions
Is this tool free?
Yes. Core tools are free to use and do not require an account.
Does tool input go to a server?
No. The TabPebble application performs the tool task in your browser and does not put input into site requests; ordinary page and code requests still reach the hosting service.