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Electrician

Built around the trade's daily math — pull the right gauge wire from amps + distance + drop target (NEC Table 310.16), check fill before you crowd the pipe (NEC Chapter 9), pick the right breaker per NEC 210.20 from a list of appliances, and handle Ohm's law on demand. Then estimate the job, generate the invoice, and explain the work to the homeowner without sounding like a textbook.

37 tools · 8 sections

Sizing the run

5 tools

NEC-correct math for wire, breaker, and conduit before you cut anything.

Wire Size Calculator

Find the right AWG / kcmil for any branch circuit or feeder — NEC ampacity AND voltage drop in one shot.

Voltage Drop Calculator

How much voltage do you lose over the run? Drop in volts, drop %, end-of-run voltage, and a pass/fail vs 3%.

Circuit Load Calculator

Add appliances → get the right breaker and wire size. Continuous loads get the NEC 1.25× multiplier automatically.

Conduit Fill Calculator

Will the bundle fit? NEC Chapter 9 fill % for EMT, RMC, PVC 40 and PVC 80 — with auto-upsize when it doesn't.

Ohm's Law Calculator

Voltage, current, resistance, power — give us any two, we compute the other two. The wheel chart in calculator form.

On the truck

5 tools

Reference + conversion you used to keep printed in the binder.

Convert between temperature, weight, length, volume, speed, and data units.

Tap Drill Chart

UNC, UNF, and ISO metric tap-drill sizes at 75% thread engagement.

Number Base Converter

Convert between decimal, binary, octal, and hex.

Binary Converter

Convert text to binary and binary to text.

Percentage Calculator

Calculate percentages, increases, decreases, and changes.

Estimating + getting paid

5 tools

Quote the job, log the change orders, send the invoice.

Quote Generator

Create professional quotes for your clients. Drag to reorder line items, see a live summary, save as draft or convert straight to an invoice. Numbered, in-browser, all on your device.

Invoice Generator

Create professional invoices for your small business. Drag to reorder line items, see live totals, save as draft, mark as paid and issue a receipt in one click.

Receipt Generator

Quick receipts for cash, card, and bank-transfer payments. Drag-handle line items, live cash-change calculation for walk-ins, save customers for next time.

Compound Interest Calculator

Calculate investment growth with compound interest over time.

Discount Calculator

Calculate sale prices and how much you save.

Talking to the homeowner

5 tools

Plain-English explanations + emails so the customer follows along.

Explain Like I'm 5

Simplify complex text to any reading level using AI.

AI Email Writer

Generate professional emails from a description.

AI Tone Changer

Rewrite text in a different tone or mood.

Summarize any text into key points using AI.

AI Grammar Checker

Fix grammar, spelling, and punctuation with AI.

Cost-of-running conversation

2 tools

When the customer asks 'how much will this thing cost me a month?'

Electricity Calculator

Calculate how much an appliance costs to run.

Percentage Calculator

Calculate percentages, increases, decreases, and changes.

Job-site clock

4 tools

Timing tasks, breaks, and call-out windows.

Precise stopwatch with lap tracking.

Countdown Timer

Set a countdown timer with custom duration.

Focus timer with work sessions and break intervals.

Date Calculator

Calculate the difference between dates or add/subtract days.

Documentation

6 tools

As-built drawings, signed permits, branded handouts.

Markdown to PDF

Convert Markdown to PDF with proper formatting. Code blocks, lists, quotes, headings. Free online tool.

Sign PDF documents online. Draw your signature and place it on any page.

Combine multiple PDF files into one document.

Combine multiple images into a single PDF — drag to reorder.

Add a text or image watermark to every page of a PDF.

Image Watermark

Add text or logo watermarks to protect your images.

Marketing the business

5 tools

QR for the truck, social posts, branded photos.

QR Code Generator

Generate fancy QR codes — colors, shapes, logo, vector export. URL, Wi-Fi, contact, email, phone, SMS.

AI Social Media Posts

Generate platform-specific social media content.

AI Hashtag Generator

Generate trending hashtags for any social media platform.

Generate blog posts from a topic using AI.

Apply filters like brightness, contrast, blur, sepia, and more to any image.

Looking for something specific? Browse all 240 tools.

Built browser-first. Run by one developer.

Every tool runs on your device. No tracking pixels, no sign-up to start. The numbers below are pulled live from the registry.

240

Free tools

Across 14 categories

7

Visual editors

PDF · image · video · audio

32

Curated kits

By profession + lifestyle

17

AI tools

Powered by Claude API

Files never uploadNo tracking pixelsNo sign-up neededWorks in any modern browser

The handful of AI tools (paraphrase, summarise, blog, captions, etc.) send your prompt text to Anthropic's Claude API to do the work. Files, images, PDFs and video never leave your device. Pick the tools that fit your privacy comfort.