> This is a page from the ElevenLabs documentation. For a complete page index, fetch https://elevenlabs.io/docs/llms.txt. For the full documentation in a single file, fetch https://elevenlabs.io/docs/llms-full.txt. # How can I check whether a piece of audio was generated by ElevenLabs? Signed-in users can use the free [ElevenLabs Audio Detector.](https://elevenlabs.io/app/audio-detector) To access this tool, open your account profile menu in the top right corner of the website, and select **ElevenLabs Audio Detector**. Upload an audio file and the tool will tell you whether it contains an ElevenLabs watermark or has a positive identification from our existing [AI Speech Classifier](https://elevenlabs.io/ai-speech-classifier). For more information, see [What is watermarking, and why is ElevenLabs using it?](/docs/help-center/legal/audio-detector/what-is-watermarking-and-why-is-eleven-labs-using-it) > ElevenLabs provides APIs and SDKs for text to speech, voice cloning, speech to text, sound effects, voice isolator, voice changer, and conversational AI agents. Build voice-enabled applications with lifelike audio generation.