Stillwind
AI copilot for electronic component search and board design
Stillwind fills a real gap for hardware engineers: finding components from vague specs. The natural language search and Builder beta are genuinely useful, but the lack of pricing data and CAD integrations limits workflow integration. Worth trying free for quick part discovery.
- Electrical engineers sourcing components from vague functional descriptions
- Hobbyists building custom electronics who need fast part discovery
- Procurement teams looking for alternative or compatible parts across suppliers
- PCB designers needing high-resolution component data for board layout
- General web search needs (only searches electronics components)
- Mechanical or civil engineering (domain-specific to electronics)
- Users needing real-time pricing or stock availability (provides links only)
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In short
Stillwind — AI copilot for electronic component search and board design. Best for Electrical engineers sourcing components from vague functional descriptions, Hobbyists building custom electronics who need fast part discovery, Procurement teams looking for alternative or compatible parts across suppliers. Free to use.
What's new in Stillwind
Checked 14 days agoAcross the latest 1 update: 1 launch.
Viability Score
How likely is Stillwind to still be operational in 12 months? Based on 4 signals — momentum (how recently it shipped), wrapper dependency, revenue model, and web presence.
Last calculated: July 2026
How we score →Key Features
- Natural language search for electronic components
- Hybrid search combining semantic and parametric queries
- Over 75 million indexed parts
- Datasheet with page-level references for validation
- Stillwind Builder: compose boards from natural language prompts (beta)
- Automatically formalizes system constraints into mathematical specs
- Cross-references candidate parts to resolve incompatibilities in real-time
- Outputs a semantically-validated Bill of Materials (BOM)
- High resolution component search for PCBs (launched June 2026)
- Support for queries with parametric constraints (voltage, current, package)
- Pre-built example queries (MCU, buck converter, SAW filter, etc.)
- Web application with clean interface
- Search across multiple suppliers and datasheets
- Add custom files for search via upload
About Stillwind
Stillwind is an AI-powered search engine for electronic components, designed for electrical engineers, hobbyists, and procurement teams. Instead of filtering through Digi-Key or Mouser parametric tables, users describe what they need in natural language — like 'MCU with JPEG encoder, CSI camera interface, ≥ 8 PWM channels' — and Stillwind matches intent to exact or compatible parts using a hybrid search that blends semantic and parametric queries. The platform indexes over 75 million parts, millions of structured parameters, and thousands of parsed datasheets with page-level references for validation. Beyond search, Stillwind Builder (currently in beta) acts as a copilot: it drafts system specs from a prompt, automatically formalizes constraints, cross-references candidate parts to resolve incompatibilities in real-time, and outputs a semantically-validated Bill of Materials (BOM). Launched in June 2026 with a high-resolution component search for PCBs, Stillwind targets both professionals sourcing specialized components like SMD SAW filters or shielded power inductors, and hobbyists building custom electronics. Unlike traditional distributor search tools, Stillwind reduces the need for manual filtering and works across suppliers, though it currently lacks pricing/stock data and integrations with CAD or BOM tools. The web app is free to use, with example queries to get started quickly.
Behind the Verdict
We'd reach for Stillwind when we have a fuzzy component requirement but no exact part number — like 'buck converter, 12V to 3.3V, ≥ 3A, with integrated FETs' — and want to avoid clicking through five parametric filters. The hybrid search does a decent job of surfacing compatible parts, and having datasheet references at the page level saves digging. The Builder beta is promising: you can prompt 'BLE air-quality sensor board' and it returns a validated BOM with constraints cross-checked. But it's still beta — expect occasional mismatches or incomplete coverage for niche parts. Where Stillwind falls short is pricing and stock: you'll get links to suppliers but no inventory data, so you'll still need to visit distributors for that. There's also no API or plugin for ECAD tools like Altium or KiCad, which means professional workflows stay manual. Compared to SnapEDA or SamacSys, Stillwind offers broader search but less integration. For hobbyists and early-stage prototyping, the free access is a win. For production teams, the missing integrations make it a secondary tool. If you're an engineer tired of parametric filters, give it a spin — just don't expect a one-stop BOM tool yet.
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Use Cases
- Find a microcontroller with JPEG encoder, CSI interface, and 8+ PWM channels
- Locate a buck converter that converts 12V to 3.3V at 3A with integrated FETs
- Discover SMD SAW filters for the 2.4 GHz ISM band
- Search for shielded power inductors with 4.7µH and 5A saturation current
- Identify an integrated heartbeat sensor chip for wearable designs
Limitations
- Pricing, API, and integration details are not publicly available at this time.
- The platform appears to be in early access with limited documentation.
- It may have constraints on query complexity or data coverage across suppliers.
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