Live measurement
The values that matter
Follow momentary, short-term and integrated loudness, true peak, loudness range, visible maximums and elapsed measurement time.
Tool · Free browser extension
Luftr Loudness Meter
Measure browser audio in real time, follow loudness history and export a clear report card.
A practical loudness workspace for broadcast checks, online content, dialogue monitoring and fast quality-control sessions directly in the browser.
FreeBrowser extensionLUFSTrue Peak
Free for Luftr Audio account holders. Browser marketplace listings are being prepared.
History
See how the programme moves
Review the visible loudness history, adjust the measurement window and pause the graph when you need to inspect a specific moment.
Export
Turn a check into a report
Export a clean card containing the visible graph and selected loudness values for documentation, review or client communication.
Purpose-built controls
Configure the standard, then measure.
Choose a preset, target, tolerance, true-peak limit, integrated window and history duration. Dialogue Focus helps centre the workflow on detected speech when voice is the priority.
LUFS-MLUFS-SLUFS-IdBTPLRADialogue Focus
Availability
Browser marketplaces
The listings are in preparation. These buttons will become direct install links after publication.
Chromium
Chrome Web Store
For Google Chrome and compatible Chromium browsers.
Chromium
Microsoft Edge Add-ons
Direct installation for Microsoft Edge users.
Firefox
Firefox Add-ons
Planned marketplace availability for Mozilla Firefox.
How to use it
From browser tab to export card
Sign in
Use your Luftr Audio account to access the current availability and installation links from Downloads.
Install the extension
Once published, install it from the marketplace supported by your browser and pin it for quick access.
Open the audio tab
Navigate to the browser tab you want to measure, open the extension and grant tab-audio access when the browser requests it.
Select a preset
Choose the target standard and adjust target, tolerance, true-peak limit and history window when the job requires it.
Start measuring
Press Start and follow the live LUFS, true-peak, meters and history. Use Dialogue Focus for speech-oriented checks.
Export the result
Pause at the relevant point and export the visible report card with the graph and selected measurement values.
Access and requirements
Free with an account
- Distribution
- Supported browser extension marketplaces
- Cost
- Free for Luftr Audio account holders
- Input
- Audio from the selected browser tab
- Browser support
- Confirmed per marketplace listing at launch
- Availability
- Coming soon