Home Electrical Load Calculator (NEC 220)

Elpris Scraper — Danish Electricity Prices & Suppliers

blackfalcondata/elpris-scraper

Scrape every electricity product Danish suppliers report to elpris.dk — supplier, price bands, and binding terms — across all 34 distribution areas. Optionally add the full all-in consumer price (øre/kWh) computed with elpris.dk's own formula.

Load Stress Test & Traffic Generator

onidivo/load-stress-test

Perform load and stress tests against your website. Drive traffic and test your website tools and integrations.

EU Salary Calculator - Net Pay Across All 27 EU Countries

trovevault/eu-salary-calculator

Calculate your net salary after income tax and social security across all 27 EU member states. Compare take-home pay for job offers, relocation decisions, and cross-border salary negotiations. Free movement means your €70,000 offer in Amsterdam pays very differently than in Lisbon.

Electric Scraper

mshopik/electric-scraper

Scrape Electric and extract data on apparel from electriccalifornia.com. Our Electric API lets you crawl product information and pricing. The saved data can be downloaded as HTML, JSON, CSV, Excel, and XML.

Remove background noise from voice recordings, podcasts, interviews, calls and videos with DeepFilterNet3 AI. Keeps the speech, removes fans, traffic, hum, wind and room noise. Optional loudness normalization. MP3, WAV, M4A, MP4 and more. No API key needed.

Remove vocals from songs or extract them with Meta's Demucs AI. Get a clean instrumental (karaoke) track and an a cappella vocal track, or split music into vocals, drums, bass and other instruments. MP3, WAV, FLAC or M4A out, from audio or video files.

Amazon FBA Fees Calculator: Profit, Margin & ROI per ASIN

moggedhq/amazon-fba-calculator

Calculate Amazon FBA fees and profit per unit for ASINs at your cost price, e.g. a yoga mat or phone case. About $0.018 per ASIN. Referral, fulfillment, storage, net profit, margin, ROI and break-even from Amazon's public Revenue Calculator. US. No login.

Electronics Calculator

mangudai/electronics-calculator

Run the everyday electronics calculations and get a clean table back. Ohm's law and the power wheel, resistor color codes both ways, LED series resistors, voltage dividers, series and parallel networks, RC and RL time constants, reactance with LC resonance, and energy cost. Offline, no API key.

US Import Duty & Tariff Calculator (HTS + Origin)

tariffsapi/us-import-duty-tariff-calculator

Bulk-resolve HTS codes to the real effective US duty rate by country of origin. Stacks MFN base + Section 301, 232 and 122 into one landed rate. A hardened resolver, not a scraper.

Track Texas PUCT large-load docket filings and optional ERCOT LLWG public documents.