Let's Seal
Authentication
v0.1.0
Let's Seal provides an open standard for proving file authenticity — that a file is unchanged, certified by a known authority, and existed by a certain date.12d agoApache-2.0No DockerAdvanced
Self-hosted alternatives to Paid document sealing services
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Also in Authentication
Not listed as Paid document sealing services alternatives, but they cover the same ground and are worth a look.
keycloakKeycloak is a self-hosted, open-source IAM server that adds authentication and single sign-on to applications using standard protocols.
Pocket IDSelf-hosted, open-source OpenID Connect Certified provider for homelabs and small teams that find Keycloak or Authentik too heavy; passkey sign-in only.
TinyauthSelf-hosted OpenID Connect certified authentication and authorization server with OAuth, LDAP, and TOTP 2FA support for protecting self-hosted applications.
LLDAPlldap is a self-hosted, open-source lightweight LDAP server with web UI, supporting SQLite/MySQL/PostgreSQL, simpler than OpenLDAP.
stack-authSelf-hosted open-source user platform for SaaS apps: auth with passkeys, teams and RBAC, API keys, payments, emails, webhooks, and product analytics with replays.
2FAuthA self-hosted OTP manager for teams and individuals storing two-factor authentication codes with full data control.
About these Paid document sealing services alternatives
1 open-source, self-hosted alternatives to Paid document sealing services are listed here, ranked by popularity, maintenance and documentation.
- Highest rated
- Let's Seal (377 GitHub stars, Apache-2.0 license, written in JavaScript)
- Recently updated
- Let's Seal v0.1.0 on 2026-10-19
Paid document sealing services alternatives compared
| Project | License | Language | Stars | Docker | Setup | Latest release | Score |
|---|---|---|---|---|---|---|---|
| Let's Seal | Apache-2.0 | JavaScript | 377 | — | Advanced | v0.1.0 | 45 |