Measures your internet connection’s download speed and latency by downloading a test file from a CDN. Upload speed is not currently measured. Uses cloud-based processing.
Convert speed between km/h, mph, knots, m/s, and ft/s. Instant conversion for travel and scientific use. Everything runs locally in your browser — nothing is uploaded.
Convert between hundreds of units — length, mass, volume, temperature, area, speed, time, digital data, and more with a single click.
Generate realistic dummy data as CSV rows or JSON objects. Configure count (1-50) for test data, demos, and prototyping.
Speed up or slow down any video. Adjust playback speed from 0.1x to 10x with audio pitch preservation. Perfect for creating time-lapses, slow-motion replays, and quick reviews.
Generate test data objects from a schema defining field names and types.
Speed Test lets you measures your internet connection’s download speed and latency by downloading a test file from a CDN. Upload speed is not currently measured. Uses cloud-based processing.. It works on any device with a modern web browser.
No. Speed Test requires an internet connection because it uses cloud-based processing for its core functionality.
Yes. Completely free with no usage limits, registration, or hidden charges.
Yes. All utility tools are fully responsive and work on any device.
Your data never leaves your browser. All processing runs locally.
Benchmark Builder
Measure browser CPU performance with synthetic benchmarks: integer math, floating point, array sorting, string ops, and mixed workloads.
IP Address Lookup
Displays your public IPv4 and IPv6 addresses with geolocation data (city, ISP, ASN, timezone). Network engineers use it to verify VPN connectivity. Uses cloud-based processing.