Do everything to a single audio file — sound design, sampling, restoration and mastering, in one browser tab.
A scientific-grade audio workstation with an assistant you drive in plain english. Nothing to install.
runs in your browser · free editor, no account needed to try
Drop in any audio and Spectral opens a full ITU / EBU / ISO-compliant analysis report — loudness, dynamics, stereo field, frequency, THD+N, key, transients, clipping. From there you can edit it by hand in a browser DAW, reshape time and pitch like a VariPhrase, slice it into a sampler instrument, surgically erase sounds off the spectrogram, split it into stems, repair it, and master it to spec. The editor, engine, loops and metering are free forever — no length caps, no format locks. Subscriptions pay for the cloud: AI, GPU jobs and sync.
~36 processing tools across the whole signal chain. Everything below is real and shipping today.
One screen holds the whole job — the scientific read-out, the editor and its meters, and the plain-english assistant, side by side.
a representation of the live workspace — the real thing is at spectral.nodedsp.com
Describe what you want — “clean up the hum, tighten the low end, get it to −14 LUFS” — and the assistant assembles a multi-step processing pipeline, previews each move, and executes it with full undo.
Bring your own model — Claude, GPT-4o, or a fully local Ollama. NodeCloud & up.
Demucs separation runs on NodeDSP compute nodes and hands back vocals, drums, bass, guitar, piano and more — each one solo-able, re-mixable, and importable as a fresh editable file.
Reopen a track and the stems are already there. NodeCloud & up.
One button hard-bypasses the entire effect chain: a float32, untouched-samples signal path for critical listening. The kind of trust a mastering engineer needs before they’ll believe anything else on the screen.
Free, on every session.
The whole editor — waveform, FX, loops, VariPhrase time tools, and broadcast-grade metering — is free forever, with no file-length cap and every export format at any sample rate. A subscription buys the things that spend our dollars: the AI assistant, stem separation and restoration on NodeDSP compute nodes, and cloud sync for your projects.
| Capability | Freethe editor, forever | NodeCloud$10 / mo | NodeDSP License$25 / mo |
|---|---|---|---|
| Editor, FX chain, loops, VariPhrase, metering | ✓ | ✓ | ✓ |
| Slice-to-sampler & kit export | ✓ | ✓ | ✓ |
| File length | no limit | no limit | no limit |
| Export formats & sample rates | all | all | all |
| AI assistant | — | 1,000 msgs / mo | 3,000 msgs / mo |
| Stem separation (GPU) | — | 30 / mo | 300 / mo |
| Restoration suite | — | ✓ | ✓ |
| Cloud sync | on-device only | 5 GB | 50 GB |
| NodeWave on the web | local only | ✓ | ✓ |
| Native NodeDSP engine & future instruments | — | — | included as they ship |
| API access (MCP) & priority queue | — | — | ✓ |
| Full support | community | community | ✓ |
Every on-device tool is unpaywalled on purpose — the free tier is a genuinely great editor with no caps. You only pay when a job leaves your machine: our GPUs, an LLM, or cloud-synced storage.
Hard-bypass float32 pass-through for critical listening — no processing in the signal path.
Real ITU / EBU loudness — M, S, I, LRA and true-peak — live, and never paywalled.
Signalsmith stretch, Demucs, Paulstretch — high-end algorithms, no proprietary black boxes.
Bring your own AI key, or drive Spectral from any MCP agent with the NodeDSP License.
Spectral is live. Open a file and see how far the rabbit hole goes.