KiCad Library Manager

Organize your personal KiCad libraries fast. Probe your machine, then work across three priority views with inline editing, live previews, and one-click sync back to disk.

What it is

A Hydrogen webview app that reads your own KiCad libraries (via the adom-desktop bridge), lets you reorganize and edit them, and writes the changes back — with reversible backups the whole way. It doesn't scrape vendors or invent CAD; it manages what you already have (plus optional one-click adds from the Adom wiki).

Three views

• Symbol priority — grouped by symbol library. Every field is inline-editable: symbol name, reference letter, the linked footprint (with autocomplete ranked by package/ref family), datasheet (a small icon — green when it's a real link), the LCSC / JLC part number (hover it for live JLCPCB stock + price breaks), and a description (expandable editor).
• Footprint priority — grouped by .pretty. Shows each footprint's 3D model and the number of symbols using it (click to expand the list).
• 3D-model priority — grouped by folder, with the footprints that reference each model.

Project Doctor

Downloaded someone else's project and their libraries are a nightmare? Click Project Doctor, pick a project (auto-discovered from your Documents / Downloads / KiCad folders, or paste a .kicad_pro path), and the same table shows every symbol & footprint the project uses:

• What's missing is red. Each row is classified against your library — green (you have it), amber (a KiCad stock symbol — works, but not yours), or red (missing). Stock footprints count as healthy; stock symbols are flagged so you can swap in your own.
• A health bar scores the project: a segmented green / amber / red bar with a N your own · N stock symbol · N missing breakdown.
• Remap inline. Every symbol / footprint is an editable, autocompleting bar — type or pick one of your own library parts. If the name is in your library it's a change (the project gets repointed to your part); if it isn't, it's a rename (relabelled inside the project).
• Sync rewrites the project (never your libraries) to apply the remaps — .kicad_sch / .kicad_pcb lib_id + footprint references, with the symbol cached into lib_symbols so KiCad resolves it. Every project file is backed up to .klm.bak first.

Highlights

• Probe finds your sym-lib-table / fp-lib-table and personal libraries automatically.
• Previews — click 🔍 to see the symbol + its linked footprint rendered by KiCad's own kicad-cli (themed for a dark canvas, pad numbers on top), or a footprint with its 3D model in an interactive viewer; standalone 3D-model previews too.
• Add / duplicate — pull a part (symbol + footprint + 3D) from the Adom wiki, add a blank symbol/footprint, or duplicate a symbol.
• Flags + undo — delete flags a row red, new items show green; nothing touches disk until you Sync. Full undo/redo tree (Ctrl+Z / Ctrl+Shift+Z) and revert-to-backup.
• Flags for libraries not registered in your lib-table and footprints that come from a KiCad default (stock) library.
• Sync — write edits/adds/deletes to disk with .klm.bak backups and a reversible .klm-trash/, per-library or all at once; a chip shows N new · N deleted · N changed.

Running

kicad-library-manager serve     # start the server on :7823
kicad-library-manager app       # open it as a Hydrogen webview tab  (alias: klm)

Requirements

• adom-desktop bridge (to reach your filesystem + shell).
• kicad-cli (KiCad 9) on the desktop for symbol/footprint previews.
• step2glb + the JLCPCB search service for 3D model conversion and live stock/price (the app degrades gracefully if they're unavailable).

Pure-Node HTTP server, zero native deps, single-file vanilla-JS SPA.