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CryptPad — collaborate on office documents while content stays end-to-end encrypted

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Stars
7,925
Primary language
JavaScript
License
AGPL-3.0
Repository last updated
Sep 18, 2026

Overview

CryptPad is a collaborative office suite covering documents, sheets, presentations, forms, kanban, code, rich text, and whiteboards. Content is encrypted in the browser before being sent to the server, so a correctly operated instance does not need plaintext access to document contents. The latest release checked is 2026.5.1.

Features and best fit

Based on official documentation; not hands-on tested · Content checked:

Use multiple collaboration tools in one encrypted workspace

Documents, spreadsheets, presentations, forms, kanban boards, code, and whiteboards can be edited collaboratively, with files and workspaces managed through CryptDrive.

Sources: [2]

Encrypt content in the browser before it reaches the server

Client-side encryption limits what stored server data reveals after a breach. The README also describes account access based on cryptographic keys derived from credentials rather than sending plaintext credentials to the server.

Sources: [2]

For collaboration where plaintext document contents should not be entrusted to the service

It fits teams that need documents, notes, forms, and light project coordination while placing strong emphasis on content confidentiality and optionally controlling the hosting environment.

Sources: [2]

E2EE still leaves trust boundaries around served code and network metadata

The encryption code itself is delivered by the host, so a malicious server can attempt an active attack by serving altered client code. Operators may also observe IP addresses or activity metadata. The project recommends current versions, and the 2026.5.1 upgrade notes require reviewing intervening releases when upgrading from older versions. CryptPad is distributed under AGPL-3.0 terms.

Sources: [2][3][4]

Official sources

  1. [1]cryptpad/cryptpad repository(2026-09-18)
  2. [2]CryptPad readme(2026-09-18)
  3. [3]CryptPad 2026.5.1 release(2026-09-18)
  4. [4]CryptPad LICENSE(2026-09-18)
Supplemental curator note

CryptPad encrypts content in the browser before it reaches the server, rather than only encrypting storage. The server still delivers the client code and can observe network metadata, so those trust boundaries should remain explicit.

Try it in 3 steps

  1. 1

    Get the source

    git clone --depth 1 https://github.com/cryptpad/cryptpad.git
  2. 2

    Enter the repository

    cd cryptpad
  3. 3

    Check the official steps

    Continue with the commands in the README Installation, Quick Start, or Getting Started section.

    find . -maxdepth 1 -iname 'README*' -exec sed -n '1,220p' {} \; -quit
Check the official README

Growth

Growth trends · Last 30 days

7,925 Stars

Trend data is still being collected.

Development activity

Last 90 days · weekly

Commits (last 30 days)
0
Open PRs
45

Development activity is still being collected.

Built with

Categories and tags

GitHub data

GitHub dataView detailed GitHub data

GitHub Topics

  • collaborative-editing
  • cryptpad
  • javascript
  • chainpad
  • collaboration
  • e2ee
  • end-to-end-encryption
  • real-time
Stars
7,925
Forks
849
Watchers
83
Open issues
331
Primary language
JavaScript
License
AGPL-3.0
Repository last updated
Sep 18, 2026
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CryptPad — End-to-end Encrypted Collaborative Office Suite | OSS Tanbou