Calculate download and upload times based on file size and internet bandwidth speed.
Execution runs 100% locally inside the browser sandbox using HTML5 Canvas, Web Cryptography Subtle API, and Web Workers. Zero egress.
Zero network latency. Operates completely offline with zero dependencies on third-party backend servers or cloud services.
Built according to official RFC specifications, cryptographic test vectors, and enterprise-grade data transformation standards.
Specify dataset or file size in Gigabytes (GB).
Choose connection speed in Mbps (or pick a preset like Gigabit Fiber).
Inspect total transfer duration and effective MegaBytes per second.
Network speeds are measured in Megabits (Mb), while file sizes are in MegaBytes (MB). 8 bits = 1 Byte, so 100 Mbps = 12.5 MB/s.
A 50GB file takes approximately 22 minutes on a steady 300 Mbps broadband connection.
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