NoteCast

Browser extension that transcribes and summarizes audio or video locally in Chrome, Brave, or Edge

Productivity & Office Note TakingFree

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About NoteCast

NoteCast is a browser extension for Chrome, Brave, and Edge that performs on-device transcription and note generation. It captures audio from browser tabs, microphone input, or local files and transcribes it locally using Whisper. The transcript is then processed by a local Ollama model to produce structured notes including summaries, key points, action items, and open questions. All processing occurs on the user’s machine with no cloud involvement, telemetry, or account requirements. The tool supports live sessions or file-based transcription and works fully offline after initial setup. Users can interact with sessions by asking questions about the content, searching transcripts, and editing both transcripts and notes. Sessions are saved locally with no imposed limits, allowing for archiving, renaming, and exporting in multiple formats such as Markdown, plain text, or subtitles.

Key features

On-device transcription with Whisper
Live transcript generation every 10–30 seconds
Structured notes including summaries and action items
Ask session-specific questions using local Ollama model
Speaker labeling and renaming
YouTube timeline deep-links for precise seeking
Session history with unlimited local storage
Multiple export formats: Markdown, text, SRT, VTT

Use cases

Transcribing lectures or educational videos for study notes
Capturing meeting audio for structured minutes and action items
Generating podcast or interview transcripts with speaker labels

Pros

Local processing with no cloud dependency
Supports multiple audio sources: tabs, microphone, or local files
Live transcription and note generation with adjustable model sizes
Full session history with search and export capabilities
Privacy-focused with no telemetry or account required

Cons

Requires Chrome, Brave, or Edge 116+
Limited to browser-based use cases
Initial model download required for offline functionality

Frequently asked questions about NoteCast

What is NoteCast and how does it work?

NoteCast is a browser extension for Chrome, Brave, and Edge that transcribes audio from browser tabs, microphones, or local files directly on the user’s device using Whisper. It then processes the transcript with a local Ollama model to generate structured notes, summaries, key points, and action items without relying on cloud services or requiring an account.

Who should use NoteCast?

NoteCast is designed for individuals who need private, on-device transcription and note-taking, such as students, professionals attending meetings or lectures, content creators, or anyone who wants to capture and organize spoken content without sending data to external servers.

Does NoteCast require an internet connection to work?

No, NoteCast operates fully offline after the initial setup. All transcription and note generation occur locally on the user’s machine, and no data is uploaded to the cloud or shared externally.

Can I edit transcripts and notes after they are generated?

Yes, users can edit both transcripts and notes directly within the interface. Changes to the transcript automatically update the notes, and users can also regenerate or refine notes in different styles or formats as needed.

What audio sources does NoteCast support?

NoteCast supports transcription from browser tabs, microphone input, or local audio/video files in formats such as MP3, WAV, M4A, OGG, FLAC, MP4, WEBM, and MOV. It can also capture audio from YouTube videos and other web content.

How do I get started with NoteCast?

To get started, install the NoteCast extension from the Chrome Web Store, Brave Add-ons, or Edge Add-ons. Once installed, the tool will guide you through setting up Whisper and an Ollama model locally. After setup, you can begin transcribing audio from tabs, microphones, or files directly in your browser.