fromco: SystemVerilog Language Serverfor RTL & Verification Engineers
Whole-project indexing, semantic navigation, linting, seamless waveform viewer integration, and an integrated schematic viewer, built for large ASIC and FPGA codebases.
Whole-Project Semantic Navigation
Fromco indexes your SystemVerilog and Verilog codebase to provide fast semantic navigation across large RTL and verification projects, with instant cross-file resolution after any change or Git checkout.
- Go to definition and references
- Project-wide renaming
- Driver and load tracing
- Macro expansion and parameter evaluation
- Incremental re-indexing
- Low memory footprint
Interactive RTL Schematic Viewer
Visualize module hierarchies and structural relationships directly from your RTL.
Expand and collapse submodules, highlight datapaths, and inspect signal propagation across complex ASIC designs.
- Hierarchical exploration
- Datapath highlighting
- Custom structural views
- Timing path inspection
Waveform Viewer Integration
Connect simulation results directly to your source code. Analyze signal values inline and navigate between waveform and source seamlessly.
- Inline signal value hints
- Quick signal insertion to waveform viewer
- Cross-hierarchy navigation
- Open-source viewer compatibility
Advanced Linting & RTL Analysis
Improve SystemVerilog code quality with semantic lint checks tailored for design and verification workflows.
- Width mismatch detection
- Clock gating analysis
- Semantic diagnostics
- Documentation extraction framework
Editor & LSP Integration
Fromco implements the Language Server Protocol (LSP) and works with any LSP-compatible editor. Dedicated plugins for Visual Studio Code and Neovim simplify setup, while additional integrations can be built via a documented API.
- Dedicated VS Code plugin
- Dedicated Neovim plugin
- Any LSP-compatible editor
- Extensible via API
Pricing
Full feature access for evaluation. No limitations, one-day license.
Full access for individual engineers. Suitable for commercial and non-commercial use.
per month
Full access for individual engineers. Suitable for commercial and non-commercial use.
per month
Team licensing with custom terms, technical support, and optional consulting.
per year per seat
Frequently Asked Questions
What payment methods are supported?
Self-serve plans accept major credit and debit cards viaPaddle. Enterprise customers may request invoice-based billing or wire transfers.
Can Fromco be used for commercial projects?
Yes. Early access, Personal and Enterprise plans allow commercial use. The Enterprise plan additionally provides team-oriented licensing options.
What is the difference between Personal and Enterprise?
The Personal plan is intended for individual engineers. The Enterprise plan includes team licensing, technical support, consulting options, and floating license management.
Does it require an internet connection?
An internet connection is required for license validation. Long offline periods are supported.
Still have questions about licensing or integrations?