Build something from a sentence
Describe a site, a script, or a tool. The agent writes it, runs it, and shows you. Test an idea on the train.
Jasiri for Android
Put your phone to work.
Your phone is already a computer. Let an AI use it.
Ask in plain English and an AI agent gets it done. It builds, fixes, organizes, and tests your ideas inside a real Linux system on your phone. Power user? Open the terminal and take the wheel.
One app. Nothing else to install. Android 8 or later.
JasiriAgentTurn this receipt into a spreadsheet.
read receipt.jpg
write receipt.csv
write receipt.csv
Done. 14 items, total 63.40. I flagged two lines I could not read clearly.
Now a chart of spend by category.
run python3 chart.py
Ask Jasiri
How it works
Say it. Watch it happen. Or just do it yourself.
Ask
Say what you want in your own words. Attach a photo or a document if it helps. No commands to learn.
Watch it work
The agent writes code, runs it, installs what it needs, and fixes its own mistakes. All of it happens in a Linux system that lives on your phone, and you can see every step.
Take the wheel
Prefer to drive? Open the terminal. Same files, same tools, no limits. It is your pocket PC.
You already paid for all those cores and all that RAM. Might as well use all of it.
Phones are pocket PCs. Most days yours spends its power scrolling. Jasiri gives it a job.
Available now
What you can do with it today.
Jasiri is an agent with a computer of its own. These all work in the current version.
Turn photos into data
Snap a receipt, a form, or a whiteboard. Get a spreadsheet or tidy notes back. Needs an AI model that can see images.
Keep projects, not chats
Every conversation gets its own folder that you can open, edit, and keep. Delete the chat and the folder goes with it.
Learn by doing
Practice Linux, Git, Python, or shell scripting on a real system, from your pocket, on a break.
Hand off through the clipboard
The agent can read what you copied and put its answer back, so it works with the apps you already use.
Reach it from your laptop
Install the SSH server and the same system is one command away from any computer on your network.
Coming soon
One app. Then make it yours.
Plugins are one-tap setups that teach Jasiri a new trick. Search every photo and video you have by describing it. Shrink big videos without losing quality. Keep notes the agent can read. Back everything up.
Find anything by describing it
Photos, videos, and documents get transcribed and indexed, so you can search them the way you would ask a friend.
Organize media for you
Whiteboard photos and lecture recordings sorted by course. Project media grouped by project. Always searchable.
Shrink videos, keep the quality
Free up space without an SD card or a bigger cloud plan.
For power users
A real Linux computer. No guardrails on what you build.
- Full terminal. Extra keys for Ctrl, Alt, and everything a phone keyboard hides.
- Install what you like. Git, Python, Node, SSH, and the rest of a normal package manager.
- Bring your own model. OpenRouter, OpenAI, or any compatible service. Your key stays on your phone.
- Cook your own setups. The agent and the system are free to use however you want. It is your pocket PC after all.
$ aaae # getting started, plus the SSH line for your laptop $ apt install python git $ cd ~/projects && ls travel-notes receipts bakery-site $ git -C travel-notes log --oneline a41c9e2 Day 3: train times, notes on the ferry
Get Jasiri
Installed in a few minutes.
Jasiri is not on Google Play yet. For now you install it directly, the way you would any app from outside the store.
Download
Tap the button below on your phone. The file is about 55 MB.
Allow the install
Open the file. Android asks if your browser may install apps. Say yes. That is a one-time prompt.
Add your AI key
Open Jasiri, paste a key from OpenRouter, OpenAI, or a compatible service, and ask for something. A short one-time setup builds the Linux system on first launch.
Download for Android. Free
Android 8 or later.
https://jasiri-dl.benlester.me/jasiri-sideload.apk
Privacy
Your phone, your files, your key.
No account
Nothing to sign up for. Install it and go.
No tracking
No ads, no analytics, no data brokers. Your prompts never come to us.
Files stay on the phone
The Linux system and your project folders live on the device.
You pick the AI
Messages go to the provider you choose, using your own key. Read the full policy.
Questions
Good questions.
Is it really free?
Yes. Jasiri is free for individuals, including for your own professional work. Teams and companies need a license. Get in touch and we will sort it out.
Do I need an AI account?
Yes, you bring your own key from OpenRouter, OpenAI, or any compatible service. Jasiri does not resell AI. You pay your provider directly and you choose the model.
Which phones does it run on?
Android 8.0 or later with a 64-bit processor. Recent phones feel best, especially for bigger jobs.
Is it on Google Play?
Not yet. That is the goal. Until then you install it directly from this site, and it checks for updates when you open it.
Does it work offline?
The Linux system and your files work without a connection. The agent needs to reach your AI provider. Running AI models on the phone itself is planned as a plugin.
What can the agent touch?
It works inside Jasiri's own space on your phone: the project folders and the Linux system. It cannot see your photos, contacts, or other apps. It can read and write the clipboard when it needs to. Because it can run commands and change files in its space, read what you ask it to do.
Where does my data go?
Your messages and any attachments go to the AI provider you picked, under that provider's terms. We run no servers that see your prompts or files. The privacy page has the details.
Can I request a feature or a plugin?
Please do. Email contact@benlester.me. Soon you will be able to describe what you want from inside the app.
Behind the build
The hard parts.
Jasiri took a lot of problems that do not show on a screenshot. A few of them:
- A real Linux system inside an app that the store will accept.Phones have rules. We read them all.
- An agent that works on your files without wrecking them.Power and caution pull in opposite directions.
- Long jobs on a phone that wants to sleep.Android has opinions about background work.
- A terminal that feels good on glass.Typing Ctrl-C on a touchscreen is a design problem.
Available for new projects
Built by Ben Lester.
I am a software and systems engineer who turns unclear requirements into shipped, production-ready products. If you need an Android app, a backend, or infrastructure built and kept running, I would like to hear about it.
- Android apps
- Backend and APIs
- Infrastructure and DevOps
- Fintech and telecom integrations
- Remote, worldwide