Sparkbot
Free & Open Source  ·  v1.4.7

Your own AI,
on your computer

Chat with a powerful AI assistant that lives entirely on your machine. No cloud. No monthly fee. No account. Just download and go.

Version 1.4.7  ·  Windows 10 & 11  ·  64-bit  ·  Free forever

100% private — nothing leaves your PC
No subscription, no hidden fees
Open source

Everything you need, nothing you don't

Sparkbot does everything ChatGPT does — but your conversations stay on your computer, always.

Completely private

Your chats never leave your computer. No company reads them, stores them, or uses them to train AI. What you type stays yours.

Chat with AI naturally

Ask questions, get help writing emails, plan a trip, or just have a conversation. Works with OpenAI, Anthropic, Google, or free local models with no API key needed.

It remembers you

Tell Sparkbot your name, your preferences, your routines — and it'll remember across every conversation, forever, on your own computer.

Read your files

Drop in a document, spreadsheet, or photo and ask Sparkbot to summarize it, answer questions about it, or help you edit it.

Reminders & web search

Ask it to remind you to take your medication, look something up on the internet, or check the weather — it can do all of that.

Custom AI assistants

Set up different AI personalities for different tasks — one for cooking help, one for writing, one for medical questions. Each stays focused on what you need.


How to install Sparkbot

It takes about 2 minutes. If you can install an app on your phone, you can do this.

Click the big purple "Download for Windows" button above

Your browser will download a file called Sparkbot.Local_1.4.7_x64-setup.exe. This is the installer. It's about 10–20 MB so it only takes a moment on most internet connections.

Find the downloaded file and open it

Look at the bottom of your browser for the downloaded file, or check your Downloads folder. Double-click the file named Sparkbot.Local_1.4.7_x64-setup.exe to start installing.

Handle the Windows security warning (don't worry — see below)

Windows may show a blue or grey warning screen. This is normal for new software and does not mean anything is wrong. Scroll down for a step-by-step picture of exactly what to click.

Follow the installer — it only takes a moment

Click Next (or Install) on any screens that appear. When it's done, Sparkbot will appear in your Start Menu like any other app.

Open Sparkbot and start chatting

Find Sparkbot in your Start Menu and open it. On the first run it will ask if you want to use a free local AI or connect your own AI key (like OpenAI). Either way works — you can always change it later.


About the Windows warning screen

Windows shows this for any new software. Here's exactly what to do — step by step.

⚠️
You'll probably see this blue screen — don't panic
It's called "Windows SmartScreen" and it appears for any software that hasn't built up millions of downloads yet.
  • When the blue screen appears, look for the small text link that says "More info" — click it. (It's usually in the lower-left area of the blue box.)
  • After clicking "More info", a new button will appear at the bottom that says "Run anyway" — click that.
  • The installer will now start normally. Continue with the installation as usual.

Questions & answers

Plain English answers to things people usually wonder about.

Yes, it is safe. Sparkbot is open source software, which means anyone in the world can read its entire code and verify there is nothing harmful in it. You can find the full source code on GitHub at the link in the footer.

The Windows warning you see is called SmartScreen — it appears automatically for any software that hasn't been downloaded by millions of people yet. It's a precaution from Microsoft, not a sign that something is wrong. New software from even well-known developers triggers this warning.

Sparkbot itself is completely free, forever. There is no trial period, no subscription, and no credit card required.

The AI "brain" inside Sparkbot can be either free (using a local AI model that runs on your computer with no internet needed) or paid (using a service like OpenAI or Anthropic, which charge by how much you use). Most people start with the free local option, which works great for everyday questions. You choose — Sparkbot never charges you directly.

It depends on which AI option you choose. If you use a local AI model (the free option), Sparkbot works completely offline — no internet required at all after the initial setup download.

If you connect it to an online AI service like OpenAI or Anthropic, then it needs internet to talk to those services. But even then, your conversation history stays on your computer — only the actual question you're asking gets sent over the internet, just like when you search Google.

Think of AI as a very well-read assistant that has studied an enormous amount of text — books, websites, encyclopedias, instruction manuals — and can answer questions about almost anything in plain, conversational language.

You type a question or request in normal sentences, and it types back a helpful answer. You don't need to learn any special commands or technical language. Just talk to it the same way you'd talk to a knowledgeable friend. If you've ever used Google to look something up, you can use Sparkbot.

No. Your conversations are stored only on your computer, in a folder that belongs to you. No one at Sparkbot sees them. There are no servers receiving your chat history.

If you choose to use a paid AI service like OpenAI, those services do receive the text of your question in order to answer it — the same way a search engine receives what you type to give you results. But Sparkbot itself never transmits or stores your chats anywhere other than your own machine.

ChatGPT and Claude are websites run by big companies — you visit their site, create an account, and your conversations are stored on their servers. They may use those conversations to improve their systems, and you need to pay monthly for the full features.

Sparkbot runs on your own computer. Your conversations belong only to you. There's no account to create, no monthly bill, and the app works even without internet. Think of it as having your own personal AI assistant that you own outright, rather than renting time with someone else's.

Any Windows 10 or Windows 11 computer made in the last 5–6 years will work fine. You don't need a gaming computer or anything fancy.

If you want to use a free local AI model (no internet required), having 8 GB of RAM helps, though smaller models work on 4 GB. If you connect Sparkbot to an online AI service like OpenAI, even an older computer will work well because the heavy thinking happens on their servers.

You can open a support request on GitHub (the link is in the footer). The community there is friendly and helpful. Just describe what happened and someone will get back to you — usually within a day.

You can also uninstall Sparkbot at any time from Windows Settings → Apps → Installed Apps, exactly like removing any other program. It won't leave anything behind.

Ready to try it?

Free. Private. Yours. Download takes less than a minute.

Free Download Download for Windows