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Fosfora
What it is
Fosfora turns computer audio into live visuals synchronized to the beat for music visualization and performance. It includes 56 audio-reactive effects, including shaders, particle simulations, and lattice effects. Users can arrange up to eight layers, reorder them, and choose among 13 blend modes. Its analysis tracks 83 audio features 86 times per second, including beat, tempo, key, percussive and harmonic content, and drops. Parameters can be controlled with MIDI, OSC, or a phone or tablet browser used as a touch surface. Layers can use images, GIFs, video files, webcam input, photos, or depth maps. Video outputs include NDI, Spout on Windows, Syphon on macOS, a Linux virtual camera, and file recording; the project names Resolume, VDMX, OBS, and TouchDesigner as compatible software. Presets save layer stacks, while scenes chain presets into cue lists that can advance on a timer, on the beat, or by pressing spacebar. Effects are WGSL shaders editable in the built-in editor while running. Fosfora is free, requires no account, and is dual-licensed under MIT or Apache 2.0. Linux and Windows require a Vulkan-capable GPU; macOS requires Metal. Video playback optionally needs ffmpeg on PATH.
For and against
For
- Includes 56 audio-reactive effects.
- Supports up to eight layers and 13 blend modes.
- Offers MIDI and OSC parameter control.
- Scenes can advance on a timer or beat.
- No account is required.
Against
- Linux and Windows require Vulkan-capable graphics.
- macOS requires Metal.
- Video playback may require ffmpeg on PATH.
The verdict
Fosfora offers layered audio-reactive visuals, cue scenes, and several output paths. Check the operating system’s graphics requirement and optional ffmpeg dependency before choosing it.
Who it suits
Fosfora may suit performers and creators who want audio-reactive visuals and control through MIDI, OSC, or a mobile browser. It runs on desktop Linux, macOS, and Windows, subject to graphics requirements.
Plans and prices
Free, open-source Fosfora
56 effects · eight-layer stack · no account required
Read 30 Sep 2026 · github.com
On the record
- Audio analysis
- Fosfora tracks 83 audio features 86 times per second, including beat, tempo, key, percussive and harmonic content, and drops.github.com · read 30 Sep 2026
- Controls
- Parameters can be controlled with MIDI, OSC or a phone or tablet browser used as a touch surface.github.com · read 30 Sep 2026
- Customization
- Effects are WGSL shaders that can be edited in the built-in editor while running.github.com · read 30 Sep 2026
- Download platforms
- The latest release provides a universal macOS DMG, a Linux x86_64 tar.gz and a Windows x64 ZIP.github.com · read 30 Sep 2026
- Effects
- It includes 56 audio-reactive effects, including shaders, particle simulations and lattice effects.github.com · read 30 Sep 2026
- Layering
- Users can stack up to eight layers, reorder them and choose from 13 blend modes.github.com · read 30 Sep 2026
- License
- The project is dual-licensed under MIT or Apache 2.0, at the user's option.github.com · read 30 Sep 2026
- Outputs and integrations
- Video output includes NDI, Spout on Windows, Syphon on macOS, a Linux virtual camera and recording to file; the README names Resolume, VDMX, OBS and TouchDesigner as compatible software.github.com · read 30 Sep 2026
- Presets and scenes
- Presets save the layer stack, and scenes chain presets into cue lists that can advance on a timer, on the beat or by pressing spacebar.github.com · read 30 Sep 2026
- Purpose
- Fosfora turns computer audio into live, beat-synced visuals for music visualization and live performance.github.com · read 30 Sep 2026
- Requirements
- The app requires a Vulkan-capable GPU on Linux and Windows or Metal on macOS; video playback optionally needs ffmpeg on PATH.github.com · read 30 Sep 2026
- Security and account
- The maker says there is no account to make, and settings are stored locally in the user's Fosfora configuration directory.github.com · read 30 Sep 2026
- Video inputs
- Layers can use images, GIFs, video files, a webcam, photos or depth maps.github.com · read 30 Sep 2026
