Tella is a free & open-source app that protects users documenting human rights violations in repressive environments. Developed by @horizontal
With Tella, you can seamlessly capture, encrypt, and hide photos, videos, and audio directly on your phone.
| Website | https://tella-app.org |
Would you like to help us make Tella more accessible?
We’re hosting a localisation sprint with our friends from Bachchao Project (@tbp
).
We invite volunteers who speak Hindi, Kannada, Tamil, Bengali, and more.
Learn more and sign up:
https://thebachchaoproject.org/event-announcement-localisation-sprint-for-tella-2026/
Tella is an important tool for a journalists and human rights defenders. It helps protect the integrity of documentation of any injustice. The tool would be even more valuable if available in more Indian languages. The Bachchao Project and @tella are hosting a India localisation sprint to make this happen. Join us at the India localisation sprint for Tella on 21st Feb 2026.
https://thebachchaoproject.org/event-announcement-localisation-sprint-for-tella-2026/
New Tella releases 🚀
- Edit media inside Tella's encrypted vault.
- New language support: Ndau
- And many other small features.
More info here: https://blog.wearehorizontal.org/introducing-editing-media-in-tella-june-2025/
Hello dear community, Our latest releases mark the completion of a long-awaited feature: the ability to edit media directly in Tella. Now, users no longer need to export sensitive files from Tella’s encrypted container to edit photos, audio, or videos—making media management both safer and easier. When you
@triskelion @zak hey Tris! sorry we are only seeing this now.
Thank you for the comment and in case you have concrete feedback, we'd love to chat!
Tella is a secure documentation platform designed for individuals facing challenging environments (repression and survailance) and limited internet connectivity. Tella simplifies the process to document human rights violations and collect crucial data, ensuring your information is shielded from both physical and digital threats. Whether you're an activist, journalist, or human rights defender, Tella enables you to create high-quality, censorship-resistant documentation vital for research, advocacy, and transitional justice.
Navigating tough times, but Tella keeps evolving!
📷 Zoom in on images (Android)
🌍 New languages: Tsonga & Portuguese Moz
🔒 Limited photo gallery access (iOS)
🔄 Improved ODK connection (Android)
More details 👇
🔗 https://blog.wearehorizontal.org/a-critical-call-for-support-and-tella-updates-2/
Hi friends, We have exciting new Tella updates to share—updates that make me and the Tella team proud of what we've built together. At the same time, we want to share an important challenge we’re facing and invite you to be part of securing Tella’s future. Right
@luc oh that would be amazing! whatever works best for you :)
Feel free to send us an email or schedule a call directly with us:
Tella is a secure documentation platform designed for individuals facing challenging environments (repression and survailance) and limited internet connectivity. Tella simplifies the process to document human rights violations and collect crucial data, ensuring your information is shielded from both physical and digital threats. Whether you're an activist, journalist, or human rights defender, Tella enables you to create high-quality, censorship-resistant documentation vital for research, advocacy, and transitional justice.
@luc Hey! Thank you for your kind words—we’re happy that you like Tella! <3
And thanks for pointing that out about the reports.
The second one (the 2024 report) essentially confirms that we implemented the recommendations (I’m attaching the summary table from page 29).
I'll update the documentation to make this clearer.
We're also working on implementing additional recommendations from a more recent security audit.
Would you be interested in a quick meeting to discuss this and any other feedback you might have? :)
We're pausing Tella community meetings due to the funding challenges @horizontal_org is facing. We hope we can bring those back soon.
If you have questions or need support, please reach out directly.
🫂More details https://donorbox.org/towards-sustainability
💙Contact us https://tella-app.org/contact-us
The short versionOver the past 5 years, Horizontal has built tools to support those who are most at-risk of surveillance, censorship, and repression: journalists, activists, human rights defenders, indigenous folks, LGBTQ communities. Now, the Tru...
Over the past five years, Horizontal has developed vital tools like @tella to empower those most at risk of surveillance.
However, the recent funding freeze imposed by the Trump administration threatens to dismantle everything we’ve built: our organization, our tools, and our community.
To help us survive as we build new revenue streams to become self-sustaining, we are looking for 250 monthly donors.
Please stand with us: https://donorbox.org/towards-sustainability
The short versionOver the past 5 years, Horizontal has built tools to support those who are most at-risk of surveillance, censorship, and repression: journalists, activists, human rights defenders, indigenous folks, LGBTQ communities. Now, the Tru...
📢 New on Tella!
We've finalized new integrations for Android and iOS:
▪️ Dropbox
▪️ Google Drive
▪️ Nextcloud
Plus, we've added Bengali 🇧🇩 language support, thanks to our friends at
@l10nlab !
✨ Try it out and share your feedback 😀
https://blog.wearehorizontal.org/new-year-new-connections-on-tella-january-2025-2/
The Bachchao Project
Horizontal