Useful web tools,
home grown, freshly picked.

Find words hidden in a jumble of letters.

Count words, characters, sentences and reading time.

Estimate monthly payments and total interest.

See how savings can grow over time.

Calculate tips, totals and each person’s share.

Calculate voltage, current or resistance.

Convert length, area, volume and weight units.

Convert watts, milliwatts, microwatts, dBm and dBW.

Convert frequency into full, half and quarter wavelengths.

Convert VSWR, return loss and reflection coefficient.

Estimate theoretical path loss by distance and frequency.

Estimate received power and available link margin.

Compare women’s, men’s and shoe sizes across regions.

Find five-letter candidates from known and excluded letters.

Find playable words ranked by tile score.

Enter a puzzle and solve the complete grid.

Create QR codes for links, text, contacts, Wi-Fi and more.

Calculate percentages, changes, increases and decreases.

Compare dates or add and subtract days.

Convert recipe weights and volumes by ingredient.

Resize and compress an image privately in your browser.

Convert text, ASCII bytes and Unicode character codes.

Estimate fuel use and total journey cost.

Change text case or create a clean URL slug.

Coax loss, Fresnel clearance and dBm voltage.

Design LC filters and graph Touchstone S-parameters.

Draw a two-port circuit and simulate its live S-parameters.

Decode leaded colour bands and SMD resistor markings.