Internet & Data
Simple tools that work in your browser and keep your input on your device.
5 tools available
Browse all toolsShowing 1–5 of 5 tools
Internet & Data
Download Time Calculator
Estimate download, upload or copy time from file size and the speed you enter.
Open tool — Download Time CalculatorIPv4 Subnet Calculator
Find an IPv4 network, mask and address range from CIDR or a subnet mask, with clear /31 and /32 qualifications.
Open tool — IPv4 Subnet CalculatorVideo & Audio File Size Calculator
Estimate video or audio size from duration and average bitrate, with optional separate audio.
Open tool — Video & Audio File Size CalculatorVideo Bitrate Calculator
Find an average bitrate budget from target file size and duration, with optional audio subtraction and a size allowance.
Open tool — Video Bitrate CalculatorUUID v4 Generator
Generate 1–1000 lowercase UUID v4 identifiers in your browser, then copy the current batch or download plain text.
Open tool — UUID v4 Generator