Forensic-Grade Audio Protection. Starting Free.

No. The watermark is completely inaudible. We have tested with professional audio engineers and golden-ear listeners - nobody can hear it. Your music, podcast, or voice recording sounds exactly the same before and after watermarking. The watermark operates below the threshold of human perception while remaining fully detectable by our verification system.

Your watermark survives. We designed it for the real world: MP3 compression, format conversion, volume changes, speed adjustments, pitch shifts, reverb, and basic editing. Our blind detection can extract the watermark from any copy - even low-quality rips or partial clips - without needing the original file. If someone can still listen to your audio, we can still find your watermark.

Upload the suspicious file to Verify Audio. Our blind detection extracts your embedded watermark and matches it to your original certificate - establishing when you registered it, your account details, and that the audio came from your protected file. Each certificate includes Ed25519 digital signatures, SHA-256 file hashes, and a Bitcoin blockchain timestamp. Download the complete evidence package to support DMCA takedowns, platform disputes, or legal action.

No - that is the key advantage. Our blind detection extracts the watermark from any copy without needing the original. Even a low-quality rip, a partial clip, or something that has been edited, compressed, and re-encoded. This is what sets ProveAudio apart from simple hash-based tools that break the moment a file is modified.

Every plan includes access to all three products: Watermark Audio (embed invisible forensic watermarks), Verify Audio (scan files for embedded watermarks), and Verify Certificate (validate certificate authenticity - always free, no credits needed). Plans differ by monthly credit allowance: Free gets 3 credits/month, Creator gets 15, Studio gets 50, and Business gets 500. Each file watermarked or verified uses 1 credit. Unused credits do not roll over.

One credit = one file processed. Watermarking a track uses 1 credit. Verifying a suspicious file uses 1 credit. You can batch-upload up to 20 files at once - each file in the batch uses 1 credit. Verify Certificate is always free and uses no credits. Credits refresh monthly on your billing date. The Free plan includes 3 credits per month with no credit card required.

Yes. The Free plan gives you 3 credits every month - no credit card required, no time limit. That is enough to watermark 3 tracks and see exactly how it works. When you need more, upgrade to Creator (15 credits/month), Studio (50), or Business (500). You can upgrade, downgrade, or cancel anytime.

Almost everything: WAV, MP3, FLAC, AAC, OGG, M4A, AIFF, and more. Upload in any format and download your watermarked file in whatever format you prefer. The watermark works regardless of format, and our verification system can detect watermarks across format conversions.

Our evidence packages are designed to meet federal evidence standards. They include your signed certificate, a sworn FRE 902(13) system certification, verification details, Bitcoin blockchain timestamps, Ed25519 digital signatures, and SHA-256 cryptographic file hashes. While admissibility is ultimately determined by the court in each specific proceeding, our documentation is structured to meet the standards used in intellectual property disputes. We recommend consulting an attorney for case-specific legal advice.

Free tools like audiowmark or AudioSeal embed data, but anyone with the same tool can extract or overwrite it. There is no proof of WHO watermarked it or WHEN. ProveAudio watermarks are linked to your verified account and signed with keys that only our servers have - creating a chain of custody. We add blockchain timestamps for independent proof of existence, generate court-ready evidence packages, and our blind detection works without the original file. It is the difference between writing your name on something and having a notarized, timestamped certificate backed by cryptographic proof.