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Dev tools · alternatives · 2026

24 alternatives to Cryptowerk Seal

Anchor in blockchains for data integrity - with no wallet!

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Cryptowerk Seal launched in 2019; newer entries below may have overtaken it.

  1. 1
    Sealit▲511

    Simple data security to get compliant & stay productive

    2023 · its alternatives →

  2. 2
    Seald SDK▲108

    Protect your users' data with end-to-end encryption.

    2021 · its alternatives →

  3. 3SV
  4. 4AR

    From the cryptic terminal commands to the innumerable ways to shoot yourself in the foot, I always struggled to use TLS certificates. I love how much easier (and cheaper) Let's Encrypt made it to get certificates, but there are still plenty of things to struggle with. That's why we built Relay: a free, browser-based tool that streamlines the ACME workflow, especially for tricky setups like homelabs. Relay acts as a secure intermediary between your ACME client and public certificate authorities like Let's Encrypt. Some ways Relay provides a better experience: - really fast, streamlined…

    2025 · anchor.dev · its alternatives →

  5. 5
    DL3ARN▲234

    Digitize & verify credentials in the blockchain

    2023 · its alternatives →

  6. 6

    Give AI access to 6754+ APIs with zero credentials exposed

    Feb 2026 · keychains.dev · its alternatives →

  7. 7
    Coins▲163

    📈 Intuitive crypto portfolios, powered by Blockstack

    2017 · its alternatives →

  8. 8

    TLDR, Let's Seal gives the finger to Adobe and every doc signing tool (docusign, google, etc) who pay to play with the Adobe Approved Trust List and then charge you for something that should be free. Currently even the person checking if a document/contract is sealed or code is authentic has to also be inside the same Adobe walled garden too. Verification, the part that should be free is the part everyone charges for. Thats the shape Let's Encrypt fixed for TLS, and I wanted the same thing for documents and files. The core idea therefore needed to go a bit beyond e signatures and i…

    Jul 2026 · github.com · its alternatives →

  9. 9
    CryCert▲77

    Digitally crafted crypto gift certificates

    2017 · its alternatives →

  10. 10
    0xcert▲123

    Your ID, degree or house. 0xcert-ified on the blockchain

    2018 · its alternatives →

  11. 11
    OneKey▲74

    Secure & community driven crypto wallet trusted by millions.

    2022 · its alternatives →

  12. 12

    Secure Document Signing & Verification Powered by Blockchain

    2018 · its alternatives →

  13. 13

    Protect your work on the blockchain

    2018 · its alternatives →

  14. 14CI
  15. 15CS
  16. 16

    Hi HN, I'm Dan Draper, founder of CipherStash. We've spent 5 years building per-value searchable encryption tech. We realized that encryption like this is incredibly powerful but the engineering required is generally not worth the effort. So we built a platform and opensource SDK to take the cry out of cryptography :) CipherStash Stack is: * A searchable encryption SDK for TS and Postgres * Fast, key management with Zerokms (backed by HSM) * A transparent SQL proxy * Auth library and OIDC federation service * Skills for data security Integrations include Prisma Next, Drizzle, Auth0, Clerk…

    May 2026 · cipherstash.com · its alternatives →

  17. 17

    Rust crypto w/ zero default deps: BLAKE3, Ed25519/X25519, hashes, MACs, KDFs, AEADs, and checksums w/ full SIMD/ASM acceleration - GitHub - loadingalias/rscrypto: Rust crypto w/ zero default deps: BLAKE3, Ed25519/X25519, hashes, MACs, KDFs, AEADs, and checksums w/ full SIMD/ASM acceleration

    Jun 2026 · github.com · its alternatives →

  18. 18SI
  19. 19KD

    I built this after seeing multiple teams accidentally ship API keys in their frontend code. The problem: Modern web development moves fast. You're vibe-coding, shipping features, and suddenly your AWS keys are sitting in a tag visible to anyone who opens DevTools. I've personally witnessed this happen to at least 3-4 production apps in the past year alone. KeyLeak Detector runs through your site (headless browser + network interception) and checks for 50+ types of leaked secrets: AWS/Google keys, Stripe tokens, database connection strings, LLM API keys (OpenAI, Claude, etc.), JWT…

    Nov 2025 · github.com · its alternatives →

  20. 20

    A simple shell utility for encrypting and decrypting files using scrypt. - nodesocket/cryptr

    2024 · github.com · its alternatives →

  21. 21

    Fire & Waterproof Cryptocurrency Backup Device starting @$45

    2018 · its alternatives →

  22. 22
    XSigi▲7

    Blockchain-secured signatures and encryption made simple.

    Oct 2025 · its alternatives →

  23. 23BC
  24. 24

    A zero-knowledge end-to-end encrypted cloud storage platform

    2021 · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →