Simple, secure, and fast. Send a link, get it signed, keep the proof forever.
Your recipient gets a link, opens the document, and signs. No sign-up, no password, no app to download. They're done in under a minute.
Once signed, both you and the signer automatically receive an identical, verified copy of the document. No chasing, no follow-ups.
Every signed document is sealed with a unique SHA-256 hash. If even a single character is changed after signing, the seal breaks and the tampering is immediately detected.
Every action is logged — when the link was opened, when the document was viewed, and when it was signed. You always know exactly where things stand.
Compose your document directly in CalmSign's block-based editor. Add headings, text, date and text inputs, and signature blocks — then send it out in seconds.
Every signed CalmSign document carries a SHA-256 tamper seal computed over an immutable snapshot at signing. CalmSign checks that seal automatically and flags any alteration.
Free for up to 5 documents a month. No credit card required.
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