Interactive Schematic Viewer with Click-to-Trace Highlighting and a Built-In AI Copilot. Click any trace and it lights up everywhere it goes. Click any part and see every pin, every net, every connection. Ask the built-in AI and it can see and highlight the schematic right along with you.
Read & create schematics right in your browser â no install. Or get the native desktop app (GTK3/Cairo on Linux, Win32/GDI+ on Windows).
Open real editable schematics for the Commodore Amiga 600, Commodore 64, Atari ST, Apple II / IIe / IIc / IIGS, MOS KIM-1, TRS-80, Sega Game Gear and more â 15 classic boards (KiCad new and legacy format, plus Eagle). Click any trace to light up the whole net, ask the built-in AI where a signal goes or what could cause a fault, upload your own .kicad_sch/.sch, or build a brand-new schematic. No install.
Click any wire and the whole net lights up â every segment, every pin, every component it touches â while the rest of the board dims. No more squinting at crossing lines.
Select any component to see its full pin list, pin types, connected nets, footprint, datasheet link, and properties â all in the inspector panel, live.
Not a chatbot bolted on the side â the AI calls real tools to inspect nets, trace paths through passives, run electrical rule checks, and highlight what it's talking about on your screen.
Ask "what's between R1 and U3?" and get the exact net-by-net, component-by-component path through resistors, capacitors, jumpers and fuses â something no other viewer offers out of the box.
Unconnected pins, undriven power rails, conflicting outputs, dangling wires, duplicate references, and case-mismatched net names â click any issue to jump straight to it.
Minimal, standard, or verbose â control exactly how much detail the inspector and the AI show you, plus four built-in themes (dark, light, blueprint, paper).
highlight_net({"name":"GND"})| Feature | KiCad (free) | Altium Viewer | SchemaTrace Studio |
|---|---|---|---|
| Click-to-highlight a full net | Partial (ratsnest only) | Cloud-dependent | â Instant, offline |
| AI assistant with live tool access to the schematic | None | None | â Built in, your choice of provider |
| Net-to-net path tracing through passives | Manual only | Manual only | â One command |
| Electrical rule checks | â Yes (complex setup) | â Yes (paid tier) | â Yes, zero config |
| Reads KiCad .kicad_sch natively | â Native | Import only | â Native |
| Reads Eagle .sch (XML) | Import only | Import only | â Native |
| Price | Free (no AI copilot) | $10,000+/yr | $39.99 one-time |
No monthly subscriptions. Private offline Ed25519 node-locked protection. Bring your own AI key, or run it fully offline with Ollama.