Groovie review
A capable free sequencer for browser-based beat experiments and MIDI clock sync.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Groovie is a free, open-source drum and beat sequencer that runs in a web browser without installation. It suits producers, musicians, and sound designers who want to sketch rhythmic ideas, arrange patterns into songs, or synchronize browser-based sequences with external MIDI-clock devices. The interface is designed for desktop, tablet, and mobile browsers, while shareable project links encode song data directly in the URL.
There is no paid tier to compare: Groovie is free. Its core feature set includes patterns from 1 to 64 steps, up to 16 rows per pattern, and up to 64 patterns per project. More than 150 built-in CC0 samples provide starting material, and each row has controls for sample selection, panning, level, and delay send. Tempo, swing, humanize, tempo-synced delay, and a mix filter add timing and sound-shaping options without introducing a subscription structure.
Groovie’s strongest fit is focused experimentation rather than a full production workflow. A timeline combines patterns into songs, and MIDI clock output supports synchronization with external hardware. Shareable URL-based projects also make it practical to pass around compact song ideas. The tradeoff is that its stated workflow centers on browser sequencing: user sample import and audio export are outside the feature set described here. Choose Groovie for free pattern creation, lightweight arrangement, and MIDI-clock integration; choose another tool if exporting finished audio or working with personal sample libraries is central to your process.
Groovie pros and cons
- Where it wins
- Supports patterns up to 64 steps and 64 patterns per project
- Includes more than 150 built-in CC0 samples with per-row mixing
- Arranges patterns into songs and outputs MIDI clock for external devices
- Where it doesn't
- No documented user sample import
- No documented audio export workflow
- Focused on browser sequencing rather than a broader production environment
Groovie fact sheet, pricing and score →
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