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Tella

Document & protect

In challenging environments, with limited or no internet connectivity or in the face of repression, Tella makes it easier and safer to collect, protect and hide sensitive data.

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Screenshot of the Tella app on Android. Showing Connections to Tella Web Uwazi and the folder structure showing that within Tella users can record and save Images, Videos and Audios securely and encripted.Screenshot of the Tella app on Android. Showing Connections to Tella Web Uwazi and the folder structure showing that within Tella users can record and save Images, Videos and Audios securely and encripted.

Why Tella?

Why Tella illustration

If you are an activist, journalist, human rights defender, or anyone who documents injustice, you can use Tella to:

  • Protect yourself from physical and digital repression while collecting and storing sensitive information.
  • Protect the data you collect from censorship, tampering, interception, and destruction.
  • Easily produce high quality documentation that can be used for research, advocacy, or transitional justice.

1. Protect your data

  • Encrypt your files: Tella automatically encrypts your photos, videos, and audio recordings as soon as they are captured.
  • Hide your files in the device: your files are inaccessible from the phone’s regular gallery or file explorer. You can only access them in the app.
  • Lock your files: set a PIN or password to protect your files. Entering the correct lock is the only way to decrypt the files stored in Tella.
  • Mask the app: change the look of Tella to hide it from people searching your phone.
  • Share your files: choose one of the secure methods to share your files with other Tella vault or to a server.
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Learn about Tella features

2. Collect evidence of human rights violations

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Read how organizations are using Tella

3. Tella is free, multilingual, and open-source

  • Free forever: Tella is designed for those whose safety is at risk. It is free to download and use, and will remain free forever.
  • Choose your language: Tella is currently available in 22 languages.
  • Trust the code: The code for Tella is open-source and publicly available so that researchers, security analysts, and developers can freely audit and reuse it. We publish the security audits that independent firms have performed on Tella.
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