Voice commands: press V anywhere, then say where you want to go or what to do. Say help to hear every command. Press V and say Bangla to speak in Bangla.
Aster turns visual learning into an accessible, audio-first experience for blind and low-vision students.
AsterKeyboard shortcuts
No mouse, no sight needed. Remember one key, V , and say what you want. The rest are shortcuts for when you are in a hurry.
Aster understands the entire video and explains important visual information in a way a visually impaired learner can understand.
The creator keeps speaking and Aster pauses only when visual information needs explanation.
Aster narrates the entire lesson visually, describing what appears on screen.
Aster becomes a personal tutor that answers questions, re-explains difficult concepts, and guides students through what they are learning.
Upload notes, textbooks, or PDFs. Aster understands the material, explains it accessibly, and creates quizzes to help students learn.
A career guide that asks three questions and points to a path, and jobs that NGO partners have checked can be done with a screen reader. Each listing says exactly what support comes with it.
Open careersMarriage, careers, exams, getting around Dhaka. Questions only other blind people can answer, in Bangla and English. Read, search, post and reply entirely by voice.
Open community that answersPress V anywhere and say what you want: “open the community”, “চাকরিগুলো পড়ো”, “back ten seconds”. Commands run in the browser, instantly, with nothing to install.
How it works
YouTube videos, notes & PDFs
Aster understands text, visuals, diagrams, code and context.
Listen, ask questions, understand and practice.
The Aster difference
When a video reaches visual information that matters, Aster pauses and describes what sight alone would reveal, then the lesson continues.
AsterNarration
Visual gap detected
Aster explains
Video continues
“The diagram shows a binary search tree with 10 at the root, 5 on the left, and 15 on the right.”
Interactive AI tutor
Aster is a patient tutor that answers questions, re-explains difficult concepts, and guides students through what they are learning, by voice or text.
Of course. Think of the root as the starting point. 10 sits at the top. Everything smaller, like 5, branches to the left. Everything larger, like 15, branches to the right.
Physics, Chapter 4
This page introduces Newton’s second law. The diagram shows a mass being pushed by a force, producing acceleration proportional to the force and inversely proportional to the mass.
Ready for a quick quiz?
What happens to acceleration if the force doubles?
Where possible, Aster runs AI models locally on the learner’s device, reducing dependence on cloud APIs and per-request costs while keeping learning content private.