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Mac companion

Download CaptureLab 360 for Mac

Screen recording, audio extraction and local transcription for the CaptureLab 360 Chrome extension.

CaptureLab 360 for Mac

macOS 13.3 Ventura or later · Apple silicon and Intel · about 200 MB · free download, Pro unlocked with a license key

Download for Mac — coming soon Email me when it is ready

A signed and Apple-notarized build is being prepared. The version number and SHA-256 checksum will be published here with the download.

Setup

Ready in three steps.

  1. Install the app

    Open the downloaded file and move CaptureLab 360 to your Applications folder, then open it. The app is signed and notarized by Apple, so macOS opens it without security warnings.

  2. Connect it to Chrome

    Install the CaptureLab 360 extension from the Chrome Web Store if you have not already. When the app starts, it registers the secure local connection to Chrome automatically. If Record or Audio still says the companion is unavailable, restart Chrome.

  3. Allow recording permissions

    The first time you record, macOS asks for Screen Recording and, if you use your voice, Microphone access. Approve them in System Settings → Privacy & Security, then return to the extension.

What it adds

Native features the browser cannot provide.

Screen recordingTab, window or full screen

Record with tab audio and your microphone to MP4/MOV, saved on your Mac.

Audio to M4AMicrophone or video

Record your voice or extract the audio track from an MP4/MOV file.

Local transcriptionWhisper on your Mac

Editable transcripts without uploading audio. TXT on Free; SRT/VTT on Pro.

Pro activationSame app, one key

Already bought Pro? Open Settings → Pro activation in the app and paste your license key.

Screenshots, chat capture, editing, OCR and share links work in the extension alone — no download needed. Windows and ChromeOS versions of the companion are not available yet. Privacy details: CaptureLab 360 Privacy Policy.