mix & master delivery · self-hosted · no subscription

Mastrly Mastrly

A focused delivery tool for mix and mastering engineers. Send your client a single link. Works in any browser. Built-in DDP player. Clients hear the actual mix or master,
not a re-encoded streaming preview.
Your mixes and masters stay in your Dropbox or Google Drive. No backend. No middleman. No subscription.

what it is

Mastrly is different.

  1. Mastrly is a single HTML file which you add to your web site. Just one file. There is no back end application server or database of any kind.

  2. Your mixes and masters live in your Dropbox or Google Drive (your choice). The only other party who ever gets access is your client, and you have total control over what they can hear and what they can download.

  3. The creators of Mastrly have no visibility of anything that you do. We can't see your files or your activity, and we cannot make changes to your application.

  4. Mastrly is a one-time purchase. You decide if and when you want to upgrade to the latest version, otherwise it stays exactly the same, so no more fighting with an ever-changing user interface which gets in your way.

  5. The client player is a blank canvas for you to add your own branding. Mastrly is not even mentioned.

  6. Made by a mastering engineer with a sole purpose, Mastrly will only ever be a tool for mix and mastering engineers.

audition fidelity

Full resolution, lossless audio engine, with perfect crossfading between versions for A/B testing (standard and pro editions).

DDP player

Share a DDP image and your client can audition the CD master with sample accurate, gapless playback directly in the browser (pro edition).

metadata

Mastrly extracts and displays artist, track and other metadata for all audio formats and DDP.

sharing with clients

One click access for your clients, no registration or sign in. You control what is shared and what can be downloaded.

self-hosted

Mastrly is a single static HTML file, and all functions run entirely in the web browser.

no backend

No cloud infrastructure or databases to maintain and pay for. If your site is up, Mastrly is up.

your storage

Mixes and masters stay in your Dropbox or Google Drive and never pass through any third party.

branding

Add your logo, colour scheme, links and contact details to give clients a seamless experience (standard and pro editions).

Try the client player here. The v1 and v2 button crossfade seamlessly between versions.

licensing

Mastrly licence model

SIMPLEPer user licence.

When you buy Mastrly you are not signing up for a subscription, you are buying a perpetual software licence for a single user. We send you a licence key which you paste on first run. That's it.

Ships as a static bundle and a one-page checklist.

supportTalk to a human.

Mastrly is built and maintained by Mark Hammond. For any questions, please reach out and you’ll get a quick reply.

Email hello@mastrly.cloud.