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Ga naar de inhoudHash files and stamp them via OpenTimestamps calendars.
Full tool — runs in your browser. No sign-up required.
Laden…
Hash files and stamp them via OpenTimestamps calendars.
Developer utilities should be fast, copy-friendly, and predictable. Paste or drop input, get a reliable result — no CLI install required.
Use this free File Timestamps whenever you need a browser-local result without creating an account.
Open the File Timestamps page — no registration required.
Paste, upload, or configure your input.
Review the live result and adjust options.
Copy or download the output to your device.
Processing is designed to stay in your browser session unless a mode explicitly notes a network call.
LokaalDeze tool verwerkt gegevens lokaal in uw browser. Tentaco ontvangt uw bestandsinhoud voor deze modus niet.
Hash files and stamp them via OpenTimestamps calendars. Ja — runs locally in your browser.
Ja — free on Tentaco.
Nee — verwerking gebeurt lokaal in uw browser. Uw bestanden en invoer verlaten uw apparaat niet, tenzij de tool expliciet het netwerk gebruikt.
Hashgenerator (SHA) — gratis
SHA-1-, SHA-256-, SHA-384- en SHA-512-hashes voor elke tekst – volledig client-side.
Certificate Inspector online — free
Inspect PEM X.509 certificates and fingerprints.
Secret Sharing online — free
Split and restore secrets with Shamir threshold shares.
Recovery Key Generator online — free
Generate printable vault-style recovery keys.
Policy Tester online — free
Analyze CSP, HSTS, CORS and Permissions-Policy headers.
Encrypted Notes online — free
Seal notes with libsodium secretbox and Argon2id.
Security Recipes online — free
Local checklists for passkeys, sealed notes and proofs.
WebAuthn Test online — free
Register and assert a passkey in this browser (demo).