The short answer. Mixxx is the DJ application: two or four decks, a mixer, beat detection, controller support and a library. Pulp is the sample manager, which is the crate rather than the decks — organising the sounds you will play. Hydrogen is the drum machine, which is a production tool that ends up in a DJ set as a loop. The dividing question is whether you are performing or preparing, because a deck application is used live and a sample manager is used the night before, and neither substitutes for the other.
This guide covers 3 dj software for macOS. Every fact below is drawn from the same verified records that back each app’s own page. The recommendations are our editorial judgment, not payment.
Quick comparison
| App | What it is | Pricing | Licence | Version |
|---|---|---|---|---|
| Hydrogen | media app | Open source | GPL-2.0 | 1.2.7 |
| Mixxx | media app | Open source | not published | 2.5.6 |
| Pulp | media app | Open source | not published | 1.3.5 |
What actually decides this
- Perform or prepare. Decks, a crossfader and cue points are performance tools. A sample library with tags and previews is preparation. A set is built from both, and a tool that only does one leaves half the work in another app.
- What the controller support is. A DJ application without a mapping for your controller is a mouse-driven deck, which is not a performance. The mapping list is more important than the feature list.
- How the library is organised. A crate with tags, keys and tempo is what makes a set findable under pressure. A folder tree is not, and the difference shows up at the moment you need a track in four bars.
- What the analysis does. Beatgrids and key detection decide whether sync works and whether two tracks clash. An application with good analysis is usable immediately; one without it requires preparing every file first.
- Whether the output can be recorded. Recording a set is how you find out what happened. A tool that can capture the master output is doing something a practice session cannot.
- Where the cue points live. Hot cues, loops and the beatgrid are work done before the set, and it can be trapped inside one application. A library format other tools can read means the preparation survives a change of software. One that cannot be exported means the preparation is rent.
- Whether the effects are per deck or on the master. An effect on one deck is part of a transition. An effect on the master changes everything that is playing. A tool with only master effects cannot do the first job, and a filter knob that is really a master EQ behaves differently from one that is not.
- What the software needs at the venue. A licence check, a login or a network connection is a dependency that fails exactly when the room is full. An application that runs offline and does not phone home is worth more at a gig than one with a larger effect list.
- Whether it can import the library you already have. Most people arrive with a folder of files and playlists in something else. Importing that with the tags, keys and cue points intact saves a weekend. Starting from an empty library is the tax on choosing a tool for its features alone.
- How much screen it needs. Two decks, a mixer, a library and four effects fit on a laptop screen if the layout is designed for it. A layout built for a large display leaves the waveform somewhere off the bottom at 13 inches, which is the size most controllers are plugged into.
Our picks
- Mixxx — Its record describes the most advanced free DJ software, which is the performance case. Choose it when you want a full DJ application with controller support.
- Pulp — Its record describes an audio sample manager, which is the preparation case. Choose it when the problem is organising samples rather than playing them.
- Hydrogen — Its record describes pattern-based drum programming, which is the production case. Choose it when you need a rhythm pattern to play over.
The apps
Hydrogen
Hydrogen is a media app for macOS. Professional yet simple and intuitive pattern-based drum programming for GNU/Linux. It is released under GPL-2.0.
What it does. The digital home of the advanced drum machine.
Hydrogen is listed with current version 1.2.7.
Full profile and verified facts for Hydrogen →
Mixxx
Mixxx is a media app for macOS. The most advanced free DJ software. It is open source.
What it does. Download the most advanced FREE DJ software available, featuring iTunes integration, MIDI controller support, internet broadcasting, and integrated music library.
Mixxx is listed with current version 2.5.6.
Full profile and verified facts for Mixxx →
Pulp
Pulp is a media app for macOS. Audio sample manager. It is open source.
What it does. Pulp is an open source sample manager.
Pulp is listed with current version 1.3.5.
Full profile and verified facts for Pulp →
How to choose
- No licence fee, source available. Hydrogen, Mixxx and Pulp — the source can be read and, under the terms of each licence, reused.
Open source: Hydrogen, Mixxx and Pulp (3 of 3).
Common mistakes
- Buying a controller before checking whether the software has a mapping for it.
- Relying on sync with a bad beatgrid and blaming the software mid-set.
- Building a set from a folder tree instead of a tagged library.
- Never recording a practice session, then wondering why the transitions felt different live.
- Preparing hot cues in a tool that cannot export them, then switching software.
- Letting the application check its licence over the venue Wi-Fi.
How this guide was put together
Each app’s facts come from its own record: the developer’s own pages and repository, the App Store listing where one exists, and the documentation, each with a source grade and an access date. Where a fact rests on the developer’s own statement rather than on something we verified independently, the sentence says so. Where our data has no value for something, the guide says “not published” instead of guessing.
A price appears here only where the record carries one from a stated source; the guide never estimates one, and it records the pricing model alongside so the two can be read together. Prices change and vary by region, so each app links to its own page for the current detail.
The facts and the recommendations are kept apart on purpose. Everything in the app entries, the comparison table and the answers above is composed from the records. The short answer, the criteria and the picks are our editorial judgment: they reflect what we would choose and why, and they are not paid for. Where we make a recommendation we name the condition it applies under, because we do not call anything “the best” without explaining the criteria.
Frequently Asked Questions
How do I choose between these dj software?
There is no single answer — it depends on what you need. This guide covers 3 dj software: Hydrogen, Mixxx and Pulp. They differ mainly in pricing model, licence and the trade-offs each one carries. Pick by the trade-off you care about rather than by rank.
Are these dj software free?
Pricing across this group: open source (Hydrogen, Mixxx and Pulp). We quote a price only where the record carries one from a stated source, and we never estimate one. Prices change and vary by region and by store, so always check the developer’s own page for the current figure.
Which of these dj software are open source?
Hydrogen (GPL-2.0), Mixxx (not published) and Pulp (not published) are open source.
Do these dj software support Apple Silicon?
Our data does not carry an explicit Apple Silicon statement for any app in this group, so we do not claim one. The absence of a statement is not the same as the absence of support.
How do I choose between them?
Start with how you pay: the guide groups these apps by pricing model, because the budget is the constraint most people actually have. Then check the trade-offs listed for each app: the limitations are the part that decides most people’s choice, because they describe what the app will not do for you.


