# Introduction

The Seald-SDK is the Seald Software Development Kit. It is based on the Seald technology core, which benefits from a CSPN Security Visa from ANSSI (opens new window) since December 2020.

It is designed for developers to integrate end-to-end encryption into web, mobile or desktop applications on the data they wish to protect.

With the Seald-SDK, you can create, manage, renew and recover your users' cryptographic identities, and use them to encrypt/decrypt data of any type (text, files, etc.), and modify the recipients of this data afterwards.

This documentation is divided into several integration guides:

A sample web application demonstrating how the Seald-SDK integrates is also available:

API references are also available for:

The changelog is available on our website: https://seald.io/changelog#sdk (opens new window)