Growth · alternatives · 2026

24 alternatives to Sealit
Simple data security to get compliant & stay productive
Sealit is a data security tool that integrates directly into Gmail, Outlook, and Slack to help users share confidential information and large files securely. It enables activity tracking and compliance without… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Sealit launched in 2023; newer entries below may have overtaken it.
- 1SV
2022 · docs.planet.ink · its alternatives →
- 2
Seald SDK▲108Protect your users' data with end-to-end encryption.
2021 · seald.io · its alternatives →
- 3EE
Manage sales and customer relationships directly inside Gmail. Streak is the CRM your team will actually use—integrated, smart, and loved by 750,000+ users.
2013 · streak.com · its alternatives →
- 4

2016 · zemanta.github.io · its alternatives →
- 5
Mailtrack.io▲282The best email tracking solution I've found. Free
2014 · mailsuite.com · its alternatives →
- 6

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 →
- 7

Keep your Gmail inbox focused on people you know
2022 · keepknown.com · its alternatives →
- 8

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- 10

Develop faster, eliminate complexity, protect your secrets
2022 · 1password.com · its alternatives →
- 11
KeePassX▲83A cross-platform app for secure personal data management
2017 · keepassx.org · its alternatives →
- 12
MarkIt▲79Trade compliance infrastructure for import workflows
May 2026 · markittrade.com · its alternatives →
- 13

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Split and distribute your private keys securely amongst untrusted network - Dentrax/cocert
2021 · github.com · its alternatives →
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Tresorit 3.0▲98End-to-end encrypted file sync & sharing for your team
2016 · tresorit.com · its alternatives →
- 17

- 18

Send files securely without leaving your Slack channel!
2020 · its alternatives →
- 19

Affordable, expert-led vulnerability management for startups
2025 · discloseit.app · its alternatives →
- 20CS
2015 · cryptomove.com · its alternatives →
- 21

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- 23

Keep sensitive info out of your email and chat logs.
2021 · onetimesecret.com · its alternatives →
- 24SA
2020 · syncit.luckid.io · its alternatives →
Also compare
- Seal – Verifiable timestamp for your private ideas alternatives
- Seald SDK alternatives
- Easy Email Encryption inside Gmail (Alpha, Open-Source) alternatives
- SecretCrypt – Keeping secrets in plain sight alternatives
- Mailtrack.io alternatives
- Let's Seal – Let's Encrypt for document signing, free and self-hosted alternatives
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 →