MeterX by ajithakdev by ajithakdev
A free, open-source speed test in your toolbar. Measures download, upload, ping, jitter, packet loss and latency under load, and says what your connection is good enough for. No account, no tracking.
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About this extension
MeterX tests your internet connection from the toolbar and tells you what the result means.
Click the MeterX icon and press Run test. In about 20 seconds you get:
- Download and upload speed, measured with several parallel streams for a fixed time
- Ping, jitter and packet loss
- Latency under load (bufferbloat), graded A to F. This is why video calls stutter while something else downloads
- A plain answer for video calls, 4K streaming, gaming and uploads
In the side panel:
- History of up to 200 results, with averages and a trend chart
- How much of your ISP plan's speed actually arrives
- A PDF report, or CSV and JSON exports
- Share links that carry the result inside the link
In settings:
- Scheduled tests every 30 minutes, every 2 hours or once a day, with an optional notice when quality drops to Poor
- Light, dark or match-system appearance
- Your own self-hosted MeterX test server instead of the default
Privacy: no account, no ads and no analytics. Results are stored in your browser. Tests run against MeterX's test server on Cloudflare's network, which streams test data and stores nothing.
Free and open source (AGPL-3.0): https://github.com/ajithakdev/meterx
Website: https://meterx.ajithakdev.com
Click the MeterX icon and press Run test. In about 20 seconds you get:
- Download and upload speed, measured with several parallel streams for a fixed time
- Ping, jitter and packet loss
- Latency under load (bufferbloat), graded A to F. This is why video calls stutter while something else downloads
- A plain answer for video calls, 4K streaming, gaming and uploads
In the side panel:
- History of up to 200 results, with averages and a trend chart
- How much of your ISP plan's speed actually arrives
- A PDF report, or CSV and JSON exports
- Share links that carry the result inside the link
In settings:
- Scheduled tests every 30 minutes, every 2 hours or once a day, with an optional notice when quality drops to Poor
- Light, dark or match-system appearance
- Your own self-hosted MeterX test server instead of the default
Privacy: no account, no ads and no analytics. Results are stored in your browser. Tests run against MeterX's test server on Cloudflare's network, which streams test data and stores nothing.
Free and open source (AGPL-3.0): https://github.com/ajithakdev/meterx
Website: https://meterx.ajithakdev.com
Found a bug or have an idea? Open an issue at https://github.com/ajithakdev/meterx/issues. MeterX is open source, so you can read exactly what it does.
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Permissions and data
Required permissions:
- Display notifications to you
Optional permissions:
- Access your data for meterx-speedtest.meterx-ajithakdev.workers.dev
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 2027.0.1
- Size
- 485.6 KB
- Last updated
- 17 days ago (Oct 26, 2026)
- Related Categories
- Privacy Policy
- Read the privacy policy for this add-on
- Version History
- Add to collection