Vega review
A free desktop scanner combining crawling, proxy inspection, and authenticated testing.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Vega is a free, open-source web application security scanner and testing platform for developers and security testers. It runs as a Java desktop application on Windows, macOS, and Linux, combining automated website crawling with an intercepting proxy for inspecting browser-application traffic. Its scanning scope includes links, forms, parameters, responses, and applications tested with supplied credentials. Vega is a practical fit for teams that want a no-cost, on-premise tool for desktop-based web application assessment rather than a hosted scanning service.
Its strongest area is the combination of proxy inspection and automated analysis. Vega supports active and passive proxy scanning, authenticated scanning with HTTP Basic, Digest, NTLM, and form-based credentials, and parameter fuzzing for injection testing. Response-processing modules analyze server responses, while JavaScript-based detection modules and an extension API allow custom detection work. TLS/SSL probing adds coverage for configuration weaknesses, and XML-based alerts with saved request and response review provide a record of findings. This breadth makes Vega useful when testers need to move between browsing traffic, crawling an application, and examining individual requests.
The main trade-off is its desktop and proxy-oriented design. Teams looking for a centrally managed web service, a browser-based workflow, or a newer maintenance cadence may prefer another scanner. The official repository’s latest update dates to February 2021, which is an important consideration for organizations evaluating long-term project activity. Vega suits developers and security testers who value open-source access, local deployment, authenticated testing, and extensibility. It is less suitable for teams that prioritize a current hosted platform or a workflow centered on centralized administration.
Vega pros and cons
- Where it wins
- Free, open-source deployment across Windows, macOS, and Linux
- Combines crawling with active and passive proxy scanning
- Supports authenticated scans, fuzzing, JavaScript modules, and TLS probing
- Where it doesn't
- Java desktop software requires a local desktop deployment
- Proxy-centered workflows may require security testing expertise
- Latest repository update dates to February 2021
Vega fact sheet, pricing and score →
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