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Rayhunter

github.ioInfrastructure

No liveness check has reached it yet; it is registered on GitHub and has been in the index since 12 Oct 2026. How this is checked

Rayhunter is open-source software for detecting IMSI catchers, also known as cell-site simulators or Stingrays. It runs on compatible mobile hotspot devices and provides installation guidance for users with varying technical skill levels.

Inferred · not functionally tested

Open SourceGPL-3.0WebSelf-hostedLinux
Rayhunter preview
Visit github.io
5.9kstars
508forks
5features
2023since

Overview

5 features

Purpose: Detecting cellular surveillance devices that may intercept mobile communications.

Inferred · not functionally tested

Audience: privacy-conscious users and security researchers

Inferred · not functionally tested

Functions: monitoring

Inferred · not functionally tested

Interfaces: API: unknown · MCP: unknown · CLI: unknown · Self-hosting: indicated (inferred, not tested)

Recorded constraints: pricing: open_source · license: GPL-3.0 · platforms: WEB · deployment: browser, self_hosted, linux

Constraint provenance is unknown; confirm requirements with the publisher.

Record sources: efforg.github.io · github.com. These links do not verify the individual claims.

In the Threat intelligence, SIEM & detection space, Rayhunter takes a focused approach. Inferred · not functionally tested: It focuses on detecting cellular surveillance devices that may intercept mobile communications. Inferred · not functionally tested: Rayhunter is an open-source project aimed at privacy-conscious users and security researchers. Basis unknown · not verified: Rayhunter is open source under the GPL-3.0 license. Basis unknown · not verified: It runs on the web and Linux, and it can be self-hosted.

It is developed by EFF, and it first shipped in 2023. Development happens publicly on GitHub with 5.9k stars and 121 commits in the last 90 days. Inferred · not functionally tested: Among its 5 catalogued features are IMSI catcher detection, cell-site simulator detection, and mobile hotspot support.

Summary written by a language model from the project’s public pages.

Tasks: Inferred · not functionally tested

  • IMSI catcher detection
  • Cell-site simulator detection
  • Mobile hotspot support
  • Device installation guide
  • Community support

Topics: Inferred · not functionally tested

Tags
imsi-catcher-detectioncellular-securitymobile-hotspot-monitoringstingray-detection

JSON profile · Text profile · Access guide

Built with & integrations

Runs on
BrowserSelf-hostedLinux

Trust & compliance

License
GPL-3.0
Public signals
HTTPSOpen SourceFree tierGitHub · ★ 5.9kActive maintenance

Indexing history

1

What PulseGate has recorded for this listing

  1. Indexed12 Oct · 19:37 UTC
    Rayhunter – An IMSI Catcher Catcher seen via Hacker News firehose (Algolia)
    Source: Hacker News firehose (Algolia) · Open

Frequently asked questions about Rayhunter

What is Rayhunter?
Inferred · not functionally tested: Rayhunter focuses on detecting cellular surveillance devices that may intercept mobile communications. It is catalogued under Threat intelligence, SIEM & detection on PulseGate.
Who is Rayhunter for?
Inferred · not functionally tested: Rayhunter is an open-source project built for privacy-conscious users and security researchers.
Is Rayhunter free?
Basis unknown · not verified: Yes — Rayhunter is open source under the GPL-3.0 license and free to use.
What platforms does Rayhunter run on?
Basis unknown · not verified: Rayhunter runs on the web and Linux. It can also be self-hosted.
Is Rayhunter still active?
The GitHub repository shows 121 commits in the last 90 days.
Who makes Rayhunter?
Rayhunter is developed by EFF.
When did Rayhunter launch?
Rayhunter first shipped in 2023.
Is Rayhunter open source?
Basis unknown · not verified: Yes — Rayhunter is open source under the GPL-3.0 license, developed on GitHub.

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