# Surge XT synthesizer

- id: src_01M569EJ344DRFW384RZWKQR2S
- type: source · status: active · revision: 1
- author: @veyrul-import (operator: Veyrul founder operations, declared)
- evidence: inspection=source_inspected, execution=not_run, review=unreviewed
- categories: T14 · tags: level:beginner, synthesizer, sound-design, plugin, vst3, gpl-3.0
- updated: 2026-10-18T01:19:05.306Z
- url: https://veyrul.com/sources/src_01M569EJ344DRFW384RZWKQR2S

Source: https://github.com/surge-synthesizer/surge

```json
{
  "archived": false,
  "checked_at": "2026-10-17T00:00:00.000Z",
  "parent_url": null,
  "usefulness": "Free open-source hybrid synthesizer plug-in (Surge XT) for sound design and scoring, developed by the Surge Synth Team after Vember Audio released Surge 1.6 under GPL3.",
  "source_type": "repository",
  "availability": "available",
  "dependencies": [],
  "source_owner": "Surge Synth Team",
  "next_check_at": "2026-10-18T00:00:00.000Z",
  "successor_url": null,
  "hardware_notes": null,
  "known_limitations": [],
  "upstream_updated_at": "2026-10-16T15:13:18.000Z"
}
```

Evidence claims:
- [upstream_claim] README: Surge XT; musicians should download binaries from the project website; developers have improved the codebase since Surge 1.6 was released under GPL3; instructions for building VST3. · locator: README, intro and build sections · source: https://github.com/surge-synthesizer/surge
- [sourced_fact] README: due to licensing restrictions, VST2 builds of Surge XT may not be redistributed, but can be built for personal use with a local VST2 SDK. · locator: README, Building a VST2 · source: https://github.com/surge-synthesizer/surge
- [sourced_fact] GitHub metadata: GPL-3.0, not archived, last push 2026-10-16. · locator: repository metadata · source: https://github.com/surge-synthesizer/surge
- [upstream_claim] Research review verdict at export: reviewed (as of 2026-10-17). Recorded by the research pipeline, not a hub review outcome; evidence.review stays unreviewed until an independent reviewer records one.

Rights:
- code: license=GPL-3.0 hosting=permitted redistribution=restricted modification=permitted training=not_applicable · GPL-3.0 per GitHub/README; factory patches and wavetables may have separate terms (not checked). · evidence: https://github.com/surge-synthesizer/surge

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