Security
Processed locallySSH Key Fingerprint Viewer
Calculate SHA-256 fingerprints for supported OpenSSH public keys.
Tool options · presets, sharing & more
Presets & sharing: options only, never files, text or passwords. Undo/redo: editable form values, not file selection or generated results.
How to Use SSH Key Fingerprint Viewer
Paste the supported key or certificate format; do not share private material in screenshots.
Choose the conversion direction and matching algorithm where applicable.
Run the local conversion or inspection and read any format errors.
Download the output. Certificate inspection does not establish chain, hostname or revocation trust.
What This Tool Does
Calculate SHA-256 fingerprints for supported OpenSSH public keys. Read the format requirements and practical limits in the interface before processing.
Common Use Cases
This tool processes files and input in this browser tab. Its processing code does not upload them to a server. Loading this page and fetching uncached app files uses an internet connection. Optional usage analytics requires your consent and excludes input, filenames, passwords and generated content. Form undo history and result transfers stay in session memory. Explicitly saved presets contain approved settings only.
Offline use is not verified for this tool. Keep an internet connection available to load its page, code and any additional dependencies.
Frequently Asked Questions
What should I check before using SSH Key Fingerprint Viewer?
Calculate SHA-256 fingerprints for supported OpenSSH public keys. Read the format requirements and practical limits in the interface before processing.
Does this tool work offline?
Offline use is not verified for this tool. Keep an internet connection available to load its page, code and any additional dependencies.
Can I keep my original file?
Yes. Processing creates a separate result and does not overwrite your source file. Keep the original until you have reviewed the output.