Your Suno Back Catalogue Stops Being Portable.

On 6 August 2026, Suno co-founder Mikey Shulman published a post on building the future of music responsibly. It committed the company to audio watermarking and fingerprinting, described as durable and resistant to tampering, arriving in the coming weeks. No date was attached to it. Every track Suno generates would carry an inaudible signature in the waveform, so that platforms downstream can identify where the audio came from.

On 10 August, a separate post from Team Suno announced the downloads policy and a new Terms of Service, both effective 3 September 2026. That is the piece with a date on it, and it is the piece with a deadline you can actually act on. Suno's stated reason is to make it harder for bad actors to mass-export music into streaming services for artificial royalties, while leaving normal professional, creative and personal use intact.

The detail that catches people out is the scope. The caps are not limited to new generations. Suno's own help documentation states that download limits apply to all music on Suno starting 3 September, including songs created before that date. A catalogue you built over two years is inside the cap from day one.

Two things are explicitly not happening, and it is worth saying them plainly because the panic online has run ahead of the facts. Your library is not being deleted: Suno states every song you have made stays fully playable and shareable on the platform, on every plan including free. And downloads made on a paid plan keep their commercial rights. What is metered is the act of pulling a file off the platform, not the existence of the song or your rights to what you already pulled.

The tool is Undetectr's Bulk Suno Song Downloader, and it runs in the browser with nothing to install. It offers two routes. The Playlist tab takes any public Suno playlist URL, lists every track in it with checkboxes, and returns your selection as a single ZIP of high-quality MP3s pulled direct from Suno's own CDN. The Full Library tab goes further: it exports every track you have ever created on Suno, authenticated with your own session token via a console command the page gives you to copy and paste. Undetectr puts that route at about thirty seconds of setup.

The playlist route is the better workflow for most catalogues, and it is worth understanding why before you reach for the bigger hammer. Pulling eight hundred files in one operation gives you eight hundred files in one folder. Grouping them into playlists on Suno first, by genre or project or release intent, means the archive arrives already sorted into the categories you will actually work in. Five minutes spent organising before the export saves an evening of sorting after it.

Unlimited playlist downloads are included with Undetectr's one-time Lifetime plan, alongside unlimited track processing, MP3, WAV and FLAC output, and priority queue.

Suno's watermarking commitment has no announced ship date. The 6 August post said the coming weeks. The new Terms of Service that take effect on 3 September reserve Suno's right to append a fingerprint, watermark or metadata to an output, indicating the applicable service tier and whether the output was a permitted download. The same terms ask users not to remove, alter, obscure or circumvent those markers for the purpose of concealing or misrepresenting an output's provenance, service tier or download status.

We would rather be straight about that than sell around it. Undetectr is release preparation for music you generated and hold the rights to: it removes the identifier layer that trips distributor screening, and it masters the result to platform specification. It is not a way to misrepresent where a track came from, and if that is what you are looking for, this is the wrong article. Read Suno's current terms yourself before you act.

There is also a technical point worth understanding, because it changes what urgency actually means here. A watermark is applied at generation or export. Suno cannot reach a copy it does not hold. Files already on your drive are outside the pipeline and a later change to it does not touch them. So "download everything before the watermark lands" is not the reason to move; the retroactive download cap on 3 September is, and that one has a date attached and applies to a catalogue you already own. For the full technical background, our companion piece explains the watermarking and download changes in detail, and the catalogue checklist covers how to triage which tracks deserve the effort.