JetBrains IDE

JetBrains IDEs provide a high-control, local-first development environment with strong privacy characteristics when used offline. While not fully open source, they offer a practical balance between productivity and sovereignty, making them one of the most viable non-US professional IDE ecosystems.

Open source: Partially IntelliJ Community Edition is open source; most products are proprietary Self-hostable: Yes (local software) Zero-knowledge: Yes (local usage) No provider access to code unless using JetBrains cloud services E2EE: Not applicable Dependency on US big tech: Low–Moderate Independent company, but plugins/integrations may involve US services Network dependency: Low Fully usable offline.