OONI Probe

OONI Probe 6.2.1

OONI Probe is a free and open source software designed to measure internet censorship and other forms of network interference.

  • By Open Observatory of Network Interference
  • Open Source
  • Updated Sep 28, 2026
Download for Windows

About OONI Probe

OONI Probe is a free and open source software designed to measure internet censorship and other forms of network interference.

What's new in 6.2.1

Release Notes
- Measurement engine (org.ooni:oonimkall*) v3.30.0
- org.ooni:passport* 0.1.7
- Add support for resolver_type.
- Bug fixes and improvements
What's Changed
- chore(deps): bump ktor from 3.5.1 to 3.5.2 by @dependabot[bot] in #1501
- chore: update iOS deployment target to 15.0 by @aanorbel in #1505
- Avoid triple reporting issues with retrieving manifest by @sdsantos in #1511
- chore(deps): bump io.sentry.android.gradle from 6.17.0 to 6.18.0 by @dependabot[bot] in #1513
- chore(deps): update passport dependency to 0.1.6 by @aanorbel in #1514
- chore(deps): bump io.github.pdvrieze.xmlutil:serialization from 1.0.1 to 1.0.2 by @dependabot[bot] in #1515
- Translations update from Localization Lab Weblate by @weblate in #1502
- chore(deps): bump io.sentry.android.gradle from 6.18.0 to 6.19.0 by @dependabot[bot] in #1519
- chore(deps): bump androidx.appcompat:appcompat from 1.7.1 to 1.8.0 by @dependabot[bot] in #1518
- chore(deps): bump androidx.fragment:fragment-ktx from 1.8.9 to 1.9.0 by @dependabot[bot] in #1517
- chore(deps): bump androidx.webkit:webkit from 1.16.0 to 1.17.0 by @dependabot[bot] in #1516
- Avoid duplicated warning reports on user registration by @sdsantos in #1525
- Fix results missing after midnight by @sdsantos in #1532
- fix: json parse error for non-successful request by @aanorbel in #1521
- chore(deps): bump com.mikepenz:multiplatform-markdown-renderer-m3 from 0.43.0 to 0.44.0 by @dependabot[bot] in #1539
- chore(deps): bump io.github.vinceglb:auto-launch from 0.8.0 to 0.9.0 by @dependabot[bot] in #1541
- chore(deps): bump io.github.alexzhirkevich:compottie from 2.2.4 to 2.3.0 by @dependabot[bot] in #1551
- chore(deps): bump io.sentry.android.gradle from 6.19.0 to 6.20.0 by @dependabot[bot] in #1550
- chore(deps): bump io.github.pdvrieze.xmlutil:serialization from 1.0.2 to 1.0.2.1 by @dependabot[bot] in #1549
- chore(deps): bump coil from 3.5.0 to 3.6.0 by @dependabot[bot] in #1548
- chore(deps): bump compose-plugin from 1.11.1 to 1.12.0 by @dependabot[bot] in #1547
- Translations update from Localization Lab Weblate by @weblate in #1524
- chore(deps): bump com.mikepenz:multiplatform-markdown-renderer-m3 from 0.44.0 to 0.45.0 by @dependabot[bot] in #1552
- chore(deps): update compose-ui and coil, refactor activity-compose by @aanorbel in #1553
- fix: broken instrumentation for installAndUpdate by @aanorbel in #1554
- chore(deps): bump io.sentry.android.gradle from 6.20.0 to 6.21.0 by @dependabot[bot] in #1558 …

Full release notes »

Technical details

PublisherOpen Observatory of Network Interference
Version6.2.1
Release date2026-09-28
LicenseGPL-3.0
Installer typeburn
Architecturex64
Package IDOONI.OONI-Probe

Install OONI Probe from the command line

Install with Windows Package Manager
winget install --id=OONI.OONI-Probe -e
Update to the latest version
winget upgrade --id=OONI.OONI-Probe -e
Uninstall
winget uninstall --id=OONI.OONI-Probe -e
Silent install with the offline installer
"OONI-Probe-6.2.1.exe" /quiet /norestart

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OONI Probe version history

  • 3.10.1
  • 3.10.0
  • 3.9.9
  • 3.9.8
  • 3.9.7
  • 3.9.6
  • 3.9.5
  • 3.9.4

Frequently asked questions

Is OONI Probe free?

Yes. OONI Probe is free and open-source software released under the GPL-3.0 license.

What is the latest version of OONI Probe?

The latest version is 6.2.1, released on Sep 28, 2026.

Is it safe to download OONI Probe?

The download button links to the official installer published on github.com, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with 8855b30214654bfc3921aa2f728eeeaf7e27424f2352d11839541c72500d7ec0.

Which Windows versions does OONI Probe support?

OONI Probe runs on Windows and is available for 64-bit (x64) systems.

How do I install OONI Probe silently?

Run the offline installer with "OONI-Probe-6.2.1.exe" /quiet /norestart, or install it with Windows Package Manager: winget install --id=OONI.OONI-Probe -e --silent.

How do I uninstall OONI Probe?

Open Settings › Apps › Installed apps, find OONI Probe and select Uninstall. From the command line, run winget uninstall --id=OONI.OONI-Probe -e.

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