Install Metamask
OPENSIG Simply Signatures
Digitally sign and verify documents on the blockchain from the privacy of your computer. No account needed. Simply connect your wallet and select a file to sign or verify. Files never leave your computer and you only pay a network fee when you sign.
No upload. No contracts. No intermediary. Simply signatures.
Proof of existence
Proof of possession
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You need Metamask to use this service
New to Web3? Don’t worry! We are working on a version of OpenSig for ALL users.
Join the waiting list below to be informed as soon as it is released.
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