Upload Speed Test
Estimate upload bandwidth for video calls using a small, safe upload sample.
Upload Speed Test
Estimate upload bandwidth for video calls (lightweight and safe).
Share your upload results
Copy or download a report (useful for support and ISP tickets).
How to use this test
- • Run Standard first; rerun once to confirm (Wi‑Fi can vary run-to-run).
- • If you plan to screen share or use 1080p, aim for 5–10 Mbps upload.
- • If you’re on a VPN, retest with it off (if allowed) to compare.
Related guide: Improve slow network for video calls.
Larger samples are more stable but use more data.
How this test works
We upload a small amount of data from your browser to a lightweight endpoint and measure how long it takes. Upload speed is computed from bytes ÷ time. No personal content is sent.
- • Short samples reduce data usage and let you retest quickly.
- • Results can vary on Wi‑Fi, VPNs, and congested networks—rerun once to confirm.
Troubleshooting
- • Turn off VPN and retest to compare direct performance.
- • Pause cloud backups and large uploads (Drive, Dropbox, iCloud) while testing.
- • Move closer to the router or switch to 5 GHz Wi‑Fi to reduce interference.
- • Use Ethernet to rule out Wi‑Fi issues.
- • If upload is consistently low, contact your ISP or upgrade plan.
Quick steps
- • Pick a sample size (Standard is fine for most checks).
- • Click Start Test and wait for the upload to finish.
- • If results are borderline, rerun once more for confirmation.
- • Use the Network Test to check latency/jitter alongside upload.
Common reasons upload is slow
- • Weak Wi‑Fi signal or interference (walls, microwaves, neighbors).
- • Bufferbloat from background uploads (backups, syncing, cameras).
- • VPN overhead or corporate proxy shaping.
- • Cellular hotspot congestion and handoffs.
- • Router firmware or QoS misconfiguration.
Improve upload for calls
- • Use Ethernet during important meetings.
- • Schedule backups and sync after calls; avoid sending large files mid‑meeting.
- • Enable Smart Queue Management / QoS on your router to reduce bufferbloat.
- • Reduce video resolution in Zoom/Teams/Meet if upload is limited.
Safety and privacy
- • Only generated bytes are uploaded; no files, audio, or video are sent.
- • Results stay in your browser and disappear when you close the tab.
- • You can cancel the test at any time.
Related tools
FAQ
What upload speed is good for Zoom, Teams, or Meet?
As a rule of thumb, aim for at least 2–3 Mbps upload for stable HD calls. For 1080p video or screen sharing, 5–10 Mbps is safer.
Is this a full speed test?
No. This is a short, lightweight upload sample designed to check call readiness without using large amounts of data.
Will this use a lot of data?
No. You can choose the sample size (about 1–5 MB) and the test uploads only that amount.
Why is upload speed more important than download for calls?
Video calls continuously upload your camera and audio (and screen share). If upload is weak, others see frozen video or hear dropouts even if downloads are fast.
Do you store anything I upload?
No. The test uploads random bytes to a sink endpoint and discards them immediately.