Real-time cost of meetings from attendees, hourly rates or salaries, and duration. Discover what it could buy instead.

Reverse percentages, percentage change over periods, successive changes, and percentage-of-a-percentage.

Instant conversions for length, area, volume, weight/mass, temperature, cooking, and digital data.

Calculate tip and split a bill by number of people with custom percentage.

Calculate regular pay, overtime at 1.5x, double time, and total earnings from hours worked.

25/5 focus timer with customizable work, short break, long break cycles. Auto-advance, pause, reset, and session counter. Runs locally with excellent defaults.

Generate strong random passwords with length, numbers, symbols, and easy copy. All client-side.

Compare prices across different package sizes. See true cost per ounce, per count, per liter, and find the best value instantly.

Add line items with quantity and price. Apply discounts, tax, and shipping. Live totals and professional summary for quick invoices or quotes.

Convert MPG ↔ L/100 km. Estimate trip fuel use and cost at your local price. Includes round-trip and passengers.

Convert between annual salary and hourly rate for any pay schedule: weekly, bi-weekly, semi-monthly, monthly. Live and precise.

Paste text or enter word count. See minutes to read at different speeds plus speak time.

Instant Base64 and URL-safe encode/decode with copy. Great for tokens, data URLs, quick debugging.

Enter hex colors and instantly see contrast ratio, WCAG AA/AAA pass/fail for text and UI.

Enter birthdate to see precise current age and days until next birthday.

Start/pause/reset with spacebar. Record laps, see splits and totals. Copy results.

Add classes with credits and grades. See live GPA, total credits, and what-if scenarios.

Paste a list, shuffle, pick N random items, or sort. Live, copy results. Great for teams, giveaways, decisions.

Run a timed agenda with sections and alerts.

Score options against weighted criteria.

Generate and check off a packing list by trip type.

Scale ingredient quantities for different servings.

Generate QR codes for text/URLs (client-side).

Pretty print and validate JSON.

Calculate network, broadcast, hosts for CIDR.

Test regex against sample text with matches.