Internet Speed Indicator
Measure your connection's download speed, latency and jitter right in the browser — no app, no signup.
Download speed estimate
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Run the check to measure your connection.
Measured results
- Download speed
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- Average latency
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- Best latency
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- Jitter
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- Data transferred
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- Samples
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What your browser reports
- Connection status
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- Effective type
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- Browser downlink
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- Browser round-trip
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- Connection type
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- Data saver
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This browser does not expose the Network Information API, so Firefox and Safari show “Not supported” above. The measured results are still accurate — they come from a real transfer, not from the browser’s own estimate.
The check downloads this page a few times from TinyToolz itself and times the transfer. Nothing is sent to a third-party speed-test server and no result ever leaves your device.
How it works
This internet speed indicator measures your connection from inside the browser. It requests
this very page several times with cache-busting URLs, times how long the response headers
take to arrive (that is your latency, or ping) and how long the body takes to download
(that gives the throughput estimate in megabits per second). Jitter is the average
variation between consecutive latency samples — low jitter matters more than raw speed for
video calls and gaming. Alongside the measurement, the page reads the Network Information
API (navigator.connection) in Chrome, Edge and most Android browsers to show
the connection type and the browser’s own downlink and round-trip estimate.
Because the transfer is small and served from a CDN close to you, treat the number as an
indicator rather than a lab-grade benchmark: it will under-report very fast fibre lines and
compressed responses can flatter the result slightly. It is ideal for a quick “is my
connection alive and responsive right now?” check. Everything runs client-side with plain
JavaScript and fetch against this site only — no third-party servers, no
accounts, no ads, and nothing about your connection is logged or uploaded.
Frequently asked questions
How accurate is a browser-based internet speed test?
It is an indicator rather than a lab benchmark. The check downloads this page from TinyToolz several times with cache-busting URLs and times the transfer, which gives a reliable read on latency, jitter and whether your connection is healthy. Because the transfer is small and compressed, very fast fibre lines are usually under-reported, so use the number for comparison over time rather than as a contractual measurement.
Why does my speed test show a different result than the speed on my plan?
Your plan quotes the maximum line speed to your provider, while a test measures what actually reaches this browser tab right now. Wi-Fi distance, other devices on the network, VPNs, browser extensions, the server's distance from you and time-of-day congestion all reduce the result. Testing over Ethernet with nothing else downloading gives the closest figure to your plan.
What internet speed do I need for video calls and streaming?
Roughly 1-3 Mbps covers SD video and standard video calls, 5-10 Mbps is comfortable for HD streaming and group calls, and 25 Mbps or more is recommended for 4K. For calls and gaming, latency and jitter matter more than raw speed: aim for latency under about 50 ms and jitter under 30 ms for a stable connection.