Whitespace.
See who already built your idea — and the space they left open.

CLUSTER ELECTRICAL-MOBILE-VOLTAGE · 6 ENTRIES · EARLIEST ENTRY 2011-11-07

Electrical reference and calculator apps

This cluster comprises mobile and desktop tools for electricians and engineers, covering code references, voltage drop and wire sizing calculators, distribution network analysis, and training simulations. The entry timeline is sparse, with isolated entries from 2011 to 2025 and the most entries (3) occurring in 2025, indicating no consistent cadence. Traction leaders are Ugly's Electrical References, followed by A NEC® 2017 Quick Reference and calcbitola-eletrica-brasileira, based on activity signal.

Entry timeline

ENTRY TIMELINE

NOV 2011: 1DEC 2016: 1AUG 2017: 1SEP 2021: 1SEP 2026: 2
NOV 2011SEP 2026

Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.

Members by activity

Activity signals, not revenue.

Build origin · 3 hand-coded · 3 unlabelled

Operator · 1 hobby · 2 indie · 1 commercial · 1 open source · 1 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 6 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 01VoltWise_Project0★24 days—hobbyWeb app that provides searchable electrical standards reference with interactive engineering calculations for electricians and engineers.
  2. 02Ugly's Electrical References0★4 molivecommercialMobile app that provides electrical code references, wiring diagrams, and calculators such as Ohm's law and voltage drop for electricians.
  3. 03A NEC® 2017 Quick Reference0★9 yrabandonedlivehand-codedindieMobile quick-reference app giving electricians and engineers fast access to commonly used sections of the National Electrical Code.
  4. 04Voltage Drop Calculator0★5 yrabandonedlivehand-codedopen sourceCalculator app that determines voltage drop in electrical wiring and suggests safe limits for current, wire gauge, and length.
  5. 05A NEC® Quick Reference0★14 yrabandonedlivehand-codedindieReference app that gives electricians and engineers quick access to commonly used sections of the National Electrical Code on site.
  6. 06電気主任技術者応援サイト | 電気管理技術者のブログ・動画横断検索と質問掲示板0★unknownliveWeb app that searches blogs and videos by electrical engineers and provides a Q&A board for sharing practical knowledge.

Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.