The ID software is supported on the most widely used operating systems: Windows, macOS, Linux, iOS, Android.
The software is updated regularly at least twice per year. Updates are made because of the constant development of environments (operation systems, web browsers, and other support programmes).
Several Estonian IT companies develop the ID software on behalf of RIA – for example, RaulWalter OÜ and Nortal AS are doing it currently.
Signing and encryption on your computer – the DigiDoc4
The DigiDoc4 is a program that allows you to digitally sign documents on your computer using your ID-card, mobile-ID, or Smart-ID. In addition, you can check the validity of digital signatures, open and save documents contained in signed envelopes, make documents classified (encryption) and readable again for everyone (decryption), and browse personal data stored on your ID-card.
All major digitally signed document formats .ddoc, .bdoc and .asice extensions are supported.
Authentication and signing online – Web eID
The Web eID solution enables the use of Estonian digital documents (ID-card, digital ID, e-Resident’s digital ID, residence permit card, etc.) for secure authentication and signing on the web. Web eID is compatible with most common operating systems and web browsers, using the PC/SC application interface to communicate directly with ID-cards.
Additionally, Web eID supports Latvian, Lithuanian, Finnish and Croatian ID-cards. The technical capacity was also developed to rapidly implement the most common European eID smart cards online.
Supported browsers: Google Chrome, Mozilla Firefox, Microsoft Edge (Chromium), and Safari.
The Web eID solution consists of a JavaScript library, a web browser extension, and an application which jointly coordinate the communication between the web browser, the website, and the smart card to perform cryptographic operations. The end user of eID can install Web eID on their computer together with the DigiDoc4 software. The components of Web eID have been added into the installation package of the ID software, which is available for users on the website www.id.ee.
Signing and encryption on your phone – RIA DigiDoc
RIA DigiDoc is a mobile application that allows you to digitally sign documents with your ID-card, mobile-ID, and Smart-ID on your smartphone. You can also check the validity of digital signatures, open and save documents contained in a signed envelope, make documents classified (encryption) and readable again for everyone (decryption). In addition to digital signing, you can use the RIA DigiDoc application to check the information and validity of ID-card certificates, change PIN and PUK codes and so on.
All major digitally signed document formats .ddoc, .bdoc and .asice extensions are supported.
The RIA DigiDoc mobile app can be used on Android and iOS smart devices.
Related links
Last updated: 20.10.2025
