Smart Proxy Route Helper: Fine-grained proxy routing for Chrome
Smart Proxy Route Helper, created by an open-source developer, is a Chrome extension that gives granular control over browser traffic routing. It selectively directs chosen domains through a local proxy while leaving other connections direct, using an explicit Proxy Auto-Config manager and exportable, versioned settings. Key elements include minimal permissions, manual language selection, and an open-source codebase. The extension targets developers and advanced users who manage local proxy clients and prioritise device-local privacy.
What precise routing role does this extension serve?
The extension focuses on domain-specific routing rather than global proxy switching, letting users mark which domains use a proxy and which use direct connections. That behaviour stems from the extension's explicit PAC-manager and its local-first design, which means routing decisions occur on the device without any developer backend. This approach is aimed at users who need targeted traffic control instead of routing all browser traffic through a single external service.
How does it behave in terms of permissions and resource model?
Built with the Manifest V3 framework, the extension avoids broad "access all sites" permissions and does not use persistent content scripts, which reduces long-running background activity. The extension's minimal-permission policy reduces the attack surface and limits browser-level privileges, aligning with a lightweight operational model. These implementation choices make the tool suitable for users who want a compact extension footprint within a Chromium browser.
What privacy protections and transparency measures are implemented?
The project is open-source and emphasises a zero-telemetry design, operating without a developer backend or external data processing. The extension does not collect analytics and explicitly does not save URL paths, query parameters, cookies, or request bodies, which limits local data retention. Those facts support independent auditability and let technically minded users verify the code and confirm that no remote tracking occurs.
How does it fit into a user's proxy workflow and device setup?
The extension is designed to work alongside local proxy clients and offers export/import of versioned backup files to move rules between devices. Manual language selection and the PAC interface support customised setups; however, it does not provide proxy servers or VPN services itself, so users operate it together with existing local tooling. Compatibility extends to Chrome and other Chromium-based browsers through the Manifest V3 model.
A practical choice for experienced users who manage their own proxy tools
Smart Proxy Route Helper is a pragmatic option for technically proficient users who prefer device-local routing control and verifiable code; it assumes familiarity with local networking tools. Expect a hands-on configuration workflow rather than a turnkey proxy service. As a practical tip, verify your local proxy client is running before enabling routing rules. The extension suits users who accept configuration overhead in exchange for privacy and transparency.
