Yes. MIT licensed open source. Groq and Gemini both have free tiers that are enough for daily use. Ollama is completely free with no limits. There is no pro plan, no premium tier, no credit card needed.

Can I use it without internet?

Yes. Install Ollama, download a Whisper model (small is 480MB), and Rota works 100% offline. No API keys, no accounts, no internet. Your voice data never leaves your machine.

Is Rota AI a free alternative to Wispr Flow?

Yes, Rota AI is a free, open source alternative to Wispr Flow. It offers similar features like AI-powered text cleanup, context-aware dictation, and works across multiple apps. Unlike Wispr Flow, Rota AI is completely free with no subscriptions, offers offline mode, has zero telemetry, and the full source code is available under MIT license.

Rota AI has zero telemetry. The desktop app never phones home. Your voice data goes only to the transcription service you choose (Groq, Gemini, or local Ollama). API keys are encrypted at rest using your OS keychain.

Does Rota AI work with VS Code?

Yes. Rota detects VS Code and preserves camelCase, snake_case, and code syntax. Your code comments come out clean without extra punctuation. It also works in terminals and IDEs.

What are the system requirements?

Windows 10/11, macOS 13+, or Linux (Ubuntu 20.04+, Fedora 36+, Arch). 4GB RAM minimum, 8GB recommended. For local GPU transcription: NVIDIA GPU with 4GB+ VRAM. CPU-only works on any modern quad-core.

Best Open Source Voice Dictation Software in 2026

TL;DR: If you want open source voice dictation, your best options in 2026 are Rota AI (Windows), Buzz (cross platform), MacWhisper (Mac), Whisper Desktop (cross platform), and FUTO (cross platform). Each one does something slightly different. I have used all five. Here is my honest breakdown of which one to pick and why open source even matters in the first place.

Let me take you back to early 2024.

I was sitting in my hostel room in Kerala, trying to finish a literature review. My wrists were killing me from typing. I had heard about voice dictation but every option I found was either paid, cloud based, or both. Wispr Flow was $15 a month. SuperWhisper was $8.49. Google Docs voice typing worked but sent everything to Google.

I did not want to pay. and I did not want my audio on someone's server.

So I started looking for open source options. That search took hours. There was no single list comparing them. I had to dig through GitHub READMEs, Reddit threads, and Discord servers to figure out what actually worked.

This post is the list I wish I had found back then.

Why Open Source Matters for Voice Dictation

Before the tools, let me explain why this matters.

Voice dictation is deeply personal. You are literally giving the software your voice. Your voice patterns. The things you say when you think nobody is listening. The medical symptoms you describe to a friend. The business idea you whisper to yourself at 2am.

With closed source dictation apps, you have to trust the company. Trust that they are not storing your audio. Trust that they are not using it to train models. Trust that they are not sharing it with third parties.

Trust is cheap. Source code is proof.

When a dictation app is open source, you can read the code. You can check for telemetry. You can search for network calls that send your audio somewhere. You do not have to trust a privacy policy. You can verify.

This is not theoretical. Closed source apps have been caught collecting data they promised they would not. It happens all the time. Data is valuable. The incentive to collect it is strong. The cost of promising not to is zero.

Open source flips the equation. The community is watching. One person might miss something. A hundred people will not.

I am not saying every open source app is private by default. Some open source apps still use cloud APIs. You still need to check. But at least you can check. With closed source, you are blind.

Fr, this is the single biggest reason I built Rota AI as open source. I wanted people to be able to verify that their audio stays on their machine. Not take my word for it. Read the code.

The Tools

1. Rota AI

Price: Free (MIT license) Platform: Windows Runs locally: Yes (with Ollama) Repo: github.com/kr1s-k/Rota-AI Best for: Real time dictation with AI cleanup on Windows

I built Rota AI because nothing I tried did what I needed. I wanted real time dictation with AI cleanup that actually made my speech readable. That worked across any Windows app. That ran locally.

Here is Rota AI in one sentence: you hold a hotkey, talk, and clean text appears wherever your cursor is.

The AI cleanup is the differentiator. Raw dictation is messy. You say "um" and "like" and you repeat yourself. Rota AI removes filler words, fixes punctuation, and makes the output read like you typed it intentionally. It lowkey feels magical the first time you see it work.

What it does:

Real time dictation with a push to talk hotkey
AI cleanup (removes filler words, fixes grammar, improves flow)
Context awareness (detects VS Code, Slack, browsers, adjusts behavior)
Voice snippets for frequently used text blocks
Local mode with Ollama for fully offline use
Supports Groq, Gemini, or local Whisper as transcription backends
Cross profile handwriting (no, that last one is made up, focus)

The context awareness matters more than I expected. When Rota AI detects you are in VS Code, it preserves camelCase and snake_case. When it detects you are in Slack, it formats like a message. Small thing. Big difference.

The trade off: Windows only. The interface is functional but not beautiful. and it is a one developer project so updates depend on my free time (aka between college deadlines).

2. MacWhisper

Price: Free (basic), one time purchase for Pro Platform: Mac only Runs locally: Yes Website: macwhisper.com Best for: Transcribing audio and video files on Mac

MacWhisper is made by Jordy Bruinsma and it is excellent. Like, genuinely excellent. It is probably the most polished open source Whisper frontend on any platform.

The workflow is simple. Drag an audio or video file into the app. Pick a model size from tiny to large. Hit transcribe. Get text. That is it.

I used MacWhisper on a friend's Mac before I built Rota AI. The accuracy is scary good. The large model on a Mac Studio got almost every word right, including technical terms and my slightly unusual accent.

Pro tip: the Pro version is a one time purchase, not a subscription. That alone puts it ahead of half the paid dictation apps out there.

The catch: MacWhisper is a transcription tool, not a dictation tool. You cannot hold a hotkey and talk. You record audio first, or import a file, then transcribe. Different workflow entirely. If you need real time dictation on Mac, look at Buzz or FUTO instead.

Also, Mac only. Jordy has not announced any plans for Windows support. So if you are on Windows, this one is not for you.

3. Whisper Desktop

Price: Free (open source) Platform: Windows, Mac, Linux Runs locally: Yes Best for: Simple cross platform transcription

Whisper Desktop is the open source GUI wrapper for Whisper. It gives you a graphical interface instead of using the command line.

You load an audio file. Pick a model. Choose your output format (TXT, SRT, VTT, etc.). Hit transcribe. Done.

It is not a dictation tool. It does not do real time transcription. It is for when you already have a recording and need a transcript. But it works on all three major platforms, which is rare.

The interface looks like someone built it in an afternoon. Because someone probably did. But it works. It is free. It runs locally. Sometimes that is all you need.

I use Whisper Desktop when I need to transcribe a lecture recording or a podcast episode. It is not my daily driver for dictation, but it is in my toolkit.

4. Buzz

Price: Free (open source) Platform: Windows, Mac, Linux Runs locally: Yes Website: buzz.dev Best for: Real time dictation across platforms

Buzz is the closest thing to a cross platform Rota AI. It does both real time dictation and file transcription. It runs Whisper locally. It is open source.

You hold a hotkey and speak. Buzz transcribes in real time. You can also import audio files for batch transcription. It supports multiple languages and lets you pick your Whisper model size.

I tested Buzz on Windows before I started building Rota AI. The accuracy is solid because it is just Whisper under the hood. The interface is clean. It works.

What Buzz does not have: AI cleanup, context awareness, voice snippets. You get raw transcription. What you say is what you get, filler words and all. For some people that is fine. For me, the cleanup is half the value.

If you are on Linux, Buzz is probably your best option for real time dictation. Nothing else on this list supports Linux as well.

5. FUTO

Price: Free (open source) Platform: Windows, Mac, Linux Runs locally: Yes Website: futo.org Best for: Users who want a privacy focused dictation tool from a known organization

FUTO is a bit different from the others on this list. It is not just one app. It is an organization that builds open source tools, and their voice dictation offering is part of a larger ecosystem.

FUTO's dictation tool runs Whisper locally. It supports real time dictation. It is cross platform. and it comes from an organization that has a track record of building privacy focused software.

I will be honest, I have not used FUTO as extensively as the others. It is newer to me and I have not had as much time with it. But from what I have tested, it works well. The interface is clean. The transcription is accurate. and the privacy story is strong because FUTO has a clear organizational commitment to open source.

your mileage may vary with FUTO depending on your platform and setup. But it is worth trying, especially if you already use other FUTO tools.

Comparison Table

Tool	Price	Platform	Real Time	Local	AI Cleanup	Best For
Rota AI	Free	Windows	Yes	Yes	Yes	Dictation with cleanup
MacWhisper	Free/Pro	Mac	No (batch)	Yes	No	File transcription
Whisper Desktop	Free	Win/Mac/Linux	No (batch)	Yes	No	Simple transcription
Buzz	Free	Win/Mac/Linux	Yes	Yes	No	Cross platform dictation
FUTO	Free	Win/Mac/Linux	Yes	Yes	No	Privacy focused users

Which One Should You Pick

On Windows, want the most features: Rota AI. The AI cleanup and context awareness are worth it.

On Windows, want something simple: Buzz. It does real time dictation without the extra features.

On Mac, want file transcription: MacWhisper. Nothing else comes close for this on Mac.

On Mac, want real time dictation: Buzz or FUTO. Both work well. Try both and see which one you prefer.

On Linux: Buzz is your best bet. FUTO works too.

Want everything local and private: All five run locally. Rota AI with Ollama gives you the most control because you can run the entire pipeline offline, including the AI cleanup.

Want the simplest possible setup: Whisper Desktop. Load file, get text. Done.

My Personal Setup

I use two tools depending on the task.

For real time dictation (writing blog posts, Slack messages, code comments, emails): Rota AI. I built it so it fits my workflow perfectly. The AI cleanup saves me maybe 20 minutes of editing per long writing session.

For transcribing recorded audio (lectures, meeting recordings): Whisper Desktop or faster-whisper via command line. I wrote a whole post about this. The command line gives me full control over model size, output format, and processing.

I tried MacWhisper on a friend's MacBook and it is genuinely impressive. If I used Mac full time, I would probably buy the Pro version and use it for all my transcription needs.

Buzz is what I recommend to people on Linux. It is the most capable open source dictation tool on that platform.

The Bigger Picture

Here is what I think a lot of people miss about open source dictation.

It is not just about price. Yes, all of these tools are free. That matters, especially for students and people in countries where $15 a month is real money.

But the real value is control. You control the software. You control your data. You control the model. You control the workflow.

If a closed source dictation app shuts down, you lose everything. If an open source app stops being maintained, the code is still there. Someone can fork it. Someone can fix it. The community keeps it alive.

This has happened before. Open source projects outlive their original developers all the time. That is the beauty of it.

When I built Rota AI, I did not know if anyone would use it. I just knew I needed it and I wanted it to be open so that even if I stopped working on it, someone else could pick it up.

That is why open source matters. Not just for dictation. For everything.

FAQ

What is open source voice dictation? Voice dictation software where the source code is publicly available. Anyone can read it, modify it, and verify that it does what it claims. This is different from closed source apps where you have to trust the company's word.

Is open source dictation as accurate as paid options? The underlying Whisper model is the same whether it is wrapped in a free open source app or a paid closed source app. Accuracy depends more on the model size you use than the app itself. Rota AI adds AI cleanup on top of Whisper, which can actually make the output more accurate than raw transcription from a paid app.

Can I use open source dictation offline? Yes. Rota AI (with Ollama), MacWhisper, Whisper Desktop, Buzz, and FUTO all run Whisper locally on your machine. No internet needed after you download the models. Your audio never leaves your computer.

Which open source dictation app is best for Windows? Rota AI if you want AI cleanup and context awareness. Buzz if you want something simpler. Both are free and open source.

Which open source dictation app is best for Mac? MacWhisper for file transcription. Buzz or FUTO for real time dictation. All three are free.

Does open source mean completely free? The software is free. The "cost" is hardware. Running Whisper locally needs RAM (8GB minimum, 16GB recommended) and ideally a GPU for faster transcription. The large model needs about 10GB of VRAM. The medium model works on CPU but is slower.

What about mobile dictation? This post focuses on desktop apps. Mobile open source dictation is still limited. Some Android apps use Whisper locally but performance varies by phone. This will improve as phones get more powerful.

How do I get started with Rota AI? Download it from the GitHub repo. Install Ollama if you want local mode. Set your hotkey. Hold it and start talking. The first time the AI cleanup kicks in, you will understand why I built this.

Is FUTO the same as the FUTO organization? Yes. FUTO (Foundation for Universal Tool Organization) builds open source tools. Their dictation app is part of that ecosystem. They have a good reputation in the open source community.

Can I contribute to these projects? Yes. All five are open source. You can submit bug reports, feature requests, or pull requests on their GitHub repos. Even testing and writing about your experience helps.

Written by Karthik Krishnan. I built Rota AI because I wanted a free, open source voice dictation tool on Windows. These five tools are the ones I actually use or have tested. Not sponsored by any of them. This post is part of the Rota AI SEO content strategy.

Best Open Source Voice Dictation Software in 2026 — Rota AI