Hash Generator
Calculate SHA-256, SHA-384 or SHA-512 hashes of text or a local file. Free, with no signup or usage-count limits.
Free · No signup · No watermark · On-device processing
Use the tool
How to use Hash Generator
- Choose text or file input and a SHA algorithm.
- Paste text exactly, or choose a file when using file mode.
- Calculate the hash and copy or download its hexadecimal fingerprint.
Understand the input and output
A cryptographic digest provides a fixed-length fingerprint of the exact input bytes. Text is encoded as UTF-8; spaces and line endings matter. File mode hashes the selected file bytes unchanged.
A hash is not encryption and cannot be decoded. This is not a password-storage system. Large files require browser memory.
Privacy and browser support
Your input is handled in this browser tab. Selected files and entered text are not sent to Varento Tools by this tool. Some specialized libraries load only when needed. A browser with JavaScript and sufficient device memory is required. Read our local-processing explanation.
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Frequently asked questions
Is this tool free without daily usage limits?
Yes. Varento Tools has no signup, accounts, usage-count caps, paywalls or watermarks. Device memory, format support and browser restrictions can still limit technically demanding files.
Why do two similar texts have different hashes?
Capitalization, trailing spaces and line-ending bytes change the input. A file hash also includes metadata bytes stored inside the file, not only its visible content.
Is my input uploaded?
No. This tool processes your input in the current browser tab and does not send it to a processing server.
What are the practical limits?
A hash is not encryption and cannot be decoded. This is not a password-storage system. Large files require browser memory.