This product was not featured by Product Hunt yet. It will not be visible on their landing page and won't be ranked (cannot win product of the day regardless of upvotes).
ExtraBrain is a free macOS AI copilot for live interviews, system design rounds, debugging calls, and technical meetings. It runs as a private overlay visible to you, can stay out of macOS screen recordings/screen sharing where supported, listens/transcribes, reads selected screen context, and gives concise real-time analysis with local transcription, BYO providers, custom endpoints, and built-in profiles.
Hey Product Hunt! I'm Dzmitry, one of the makers of ExtraBrain.
We built ExtraBrain as a private AI overlay for live technical conversations - visible to you, screen-aware, and designed to stay out of shared screens, screenshots, and recordings where supported.
The problem we kept running into: live interviews, system-design rounds, debugging calls, and meetings move faster than a normal chat window. The useful context is not only what someone just asked. It is also what is visible on screen, what was already discussed, and what kind of conversation you are in.
ExtraBrain is a macOS desktop AI copilot that can: - transcribe live microphone and system audio - use selected screenshot/screen context - generate concise real-time analysis and follow-up ideas - switch between Coding, System Design, Behavioral, Meeting, and Assistant profiles - save local session history with transcripts, screenshots, analyses, and extracted facts - use your own OpenAI, Anthropic, Claude, Codex, Deepgram, or OpenAI-compatible provider setup - run local speech-to-text with NVIDIA Parakeet - run fully locally with local speech-to-text and a local Gemma 4 model, hardware permitting
One thing we care a lot about is user control.
We do not force everyone into one hosted AI stack or bundled AI credits. Provider keys are stored locally. LLM requests go directly to the provider or endpoint you choose. If you use OpenAI, Anthropic, Deepgram, or another cloud provider, the relevant content is sent to that provider. If you want maximum privacy, you can use local transcription and a local model setup instead.
The core app is free. Pro is mainly for custom profiles and premium model options.
For Product Hunt, we're offering PHBRAIN40: 40% off ExtraBrain Pro for the first year for the first 200 users. The free core app remains free.
A few honest tradeoffs: - macOS first today; Windows and Linux are coming later - best results require configuring providers, local CLIs, or local models - local models depend on your hardware - cloud LLM/transcription providers receive the content you choose to send them - users should follow interview, workplace, meeting, and platform rules
We'd love feedback on: 1. Is the positioning clear: interview assistant, meeting copilot, or live technical-session copilot? 2. Which profile should we improve first: Coding, System Design, Behavioral, Meeting, or Assistant? 3. What would make BYO provider setup easier? 4. Would you prefer a simpler hosted setup, or more local/offline controls?
Thanks for checking it out - would love your honest feedback.
Live system design and debugging rounds are incredibly high-pressure. A private, native copilot with BYO keys and local transcription—completely hidden from screen shares—is a massive security blanket for developers.
Quick question: How does it keep the overlay 100% invisible during a live Zoom or Teams call? Does it rely on native macOS window sharing APIs under the hood?
About ExtraBrain on Product Hunt
“Private AI copilot for interviews and meetings”
ExtraBrain was submitted on Product Hunt and earned 9 upvotes and 5 comments, placing #47 on the daily leaderboard. ExtraBrain is a free macOS AI copilot for live interviews, system design rounds, debugging calls, and technical meetings. It runs as a private overlay visible to you, can stay out of macOS screen recordings/screen sharing where supported, listens/transcribes, reads selected screen context, and gives concise real-time analysis with local transcription, BYO providers, custom endpoints, and built-in profiles.
ExtraBrain was featured in Productivity (652.1k followers), Developer Tools (512.8k followers) and Artificial Intelligence (469.1k followers) on Product Hunt. Together, these topics include over 297.6k products, making this a competitive space to launch in.
Who hunted ExtraBrain?
ExtraBrain was hunted by Dzmitry Bachko. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how ExtraBrain stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Dzmitry Bachko
Hey Product Hunt! I'm Dzmitry, one of the makers of ExtraBrain.
We built ExtraBrain as a private AI overlay for live technical conversations - visible to you, screen-aware, and designed to stay out of shared screens, screenshots, and recordings where supported.
The problem we kept running into: live interviews, system-design rounds, debugging calls, and meetings move faster than a normal chat window. The useful context is not only what someone just asked. It is also what is visible on screen, what was already discussed, and what kind of conversation you are in.
ExtraBrain is a macOS desktop AI copilot that can:
- transcribe live microphone and system audio
- use selected screenshot/screen context
- generate concise real-time analysis and follow-up ideas
- switch between Coding, System Design, Behavioral, Meeting, and Assistant profiles
- save local session history with transcripts, screenshots, analyses, and extracted facts
- use your own OpenAI, Anthropic, Claude, Codex, Deepgram, or OpenAI-compatible provider setup
- run local speech-to-text with NVIDIA Parakeet
- run fully locally with local speech-to-text and a local Gemma 4 model, hardware permitting
One thing we care a lot about is user control.
We do not force everyone into one hosted AI stack or bundled AI credits. Provider keys are stored locally. LLM requests go directly to the provider or endpoint you choose. If you use OpenAI, Anthropic, Deepgram, or another cloud provider, the relevant content is sent to that provider. If you want maximum privacy, you can use local transcription and a local model setup instead.
The core app is free. Pro is mainly for custom profiles and premium model options.
For Product Hunt, we're offering PHBRAIN40: 40% off ExtraBrain Pro for the first year for the first 200 users. The free core app remains free.
A few honest tradeoffs:
- macOS first today; Windows and Linux are coming later
- best results require configuring providers, local CLIs, or local models
- local models depend on your hardware
- cloud LLM/transcription providers receive the content you choose to send them
- users should follow interview, workplace, meeting, and platform rules
We'd love feedback on:
1. Is the positioning clear: interview assistant, meeting copilot, or live technical-session copilot?
2. Which profile should we improve first: Coding, System Design, Behavioral, Meeting, or Assistant?
3. What would make BYO provider setup easier?
4. Would you prefer a simpler hosted setup, or more local/offline controls?
Thanks for checking it out - would love your honest feedback.