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Preview of Librezam

Librezam by FoxRefire

Song recognition webextension using Shazam API (Also supports Audd and ACRCloud API)

4.7 (45 reviews)
14,296 Users
You'll need Firefox to use this extension
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Screenshots
When a song is recognised, information about it and a link to the streaming provider is displayed. (with cover art)When a song is recognised, information about it and a link to the streaming provider is displayed. (without cover art)The settings screen allows you to set the recording time, recognition backend(Shazam or Audd), with and without cover art display, theme, export history and clear history.If no element is found in the tab with audio playing, an error will throw.If song was not recognized by backend, an error will throw.Extension works on Firefox for Android as well
About this extension
This is a browser extension that uses internal API of Shazam to recognize the music playing in the current tab.
Librezam also supports Audd and ACRCloud as alternative backends, which can be changed from the configuration.
Unlike other similar extensions, it works on almost all sites and has fewer bugs.

Requests unrelated to music recognition, such as telemetry, will not be made.
This is unofficial project and is not affiliated or supported by Shazam ltd.

!!Please report extension issues to Github Issue or ‘bqzfjohg@addy.io’, not in the review section, and read the troubleshooting below before reporting the problem !!

Source code
https://github.com/FoxRefire/Librezam

Search tags:
Song Music Recognize Recognizer Find Finder Identify Identifier Name Search Shazam Audd ACRCloud AHA Music Soundhound Musixmatch Now playing Musikerkennung Reconnaissance musicale музыкальное распознавание 音楽認識 음악 인식 音乐识别 音樂識別
Developer comments
===Trouble shooting===
* Audio elements not detected on some sites
Please report here the website where the problem is occurring and I will fix it.
https://github.com/FoxRefire/Librezam/issues/7

* Stuck in loading animation forever
This may be due to the fact that the site permission has been revoked.
This can occur rarely, for example when updating add-ons
Open the “Permissions” tab in the add-on settings and grant the “Access your data for all websites” permission

*Songs are not recognized
The music recognition process of this extension relies on the Shazam, Audd, and ACRCloud APIs, and the Shazam backend is used by default.
If the song is not recognised correctly, try changing to a different recognition backend or extending the recording time from the extension settings.
ACRCloud has the highest recognition accuracy.

*Recommended recording length
Most popular songs: 3,200
Shazam - Minor songs: 12,000
Audd - Minor songs: 9,000
ACRCloud - Minor songs: 5,000
ACRCloud - Cover songs, humming: 7,200
Set the backend to ACRCloud, enable humming recognition, specify the API key, and set the recording time to 7200 or higher for the highest recognition accuracy.
If some songs are not recognised by the Shazam backend, specify a recording time of 12000 or higher to improve accuracy.
Rated 4.7 by 45 reviewers

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Permissions and dataLearn more

Required permissions:

  • Display notifications to you
  • Access browser tabs
  • Access browser activity during navigation
  • Access your data for all web sites

Optional permissions:

  • Access your data for all web sites
More information
Add-on Links
Version
3.3
Size
334.89 kB
Last updated
6 days ago (1 Aug 2025)
Version History
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Release notes for 3.3
  • Whole refactor code
  • Drop huge ffmpeg.wasm dependency (The conversion process to PCM required by the Shazam backend is now performed using the Web Audio API)
  • Use streaming providers metadata in ACRCloud backend
  • Fix humming response of ACRCloud backend
  • Minor bug fixes
  • Automatic recognition mode
  • Updated Shazam-API dependency
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