What They Have in Common
Both a VPN and a proxy route your internet traffic through an intermediary server, which changes the IP address websites see. This is where the similarity ends. The architecture, encryption, and scope of protection are fundamentally different, and confusing the two leads people to use the wrong tool for their situation.
How a Proxy Works
A proxy server sits between your browser and the website you are visiting. Your browser sends the request to the proxy, the proxy forwards it to the website, and the response comes back through the proxy. The website sees the proxy IP, not yours. Most proxies are application-level: they handle traffic from your browser but not from other apps running on your device. Most proxies do not encrypt traffic, which means your ISP and anyone monitoring the network can still see what you are accessing.
How a VPN Works
A VPN creates an encrypted tunnel between your device and a VPN server. All traffic from your device, not just the browser, goes through this tunnel. Your ISP sees only that you are connected to a VPN server, not what you are accessing. The VPN server then makes requests on your behalf. Encryption is the key difference: a VPN protects your data in transit from interception. A proxy does not.
When to Use a Proxy
A proxy is appropriate for lightweight tasks: bypassing a regional block on a specific website, using a different IP for web scraping, or accessing content that is not available in your location. Free proxies are widely available and fast because they do not add encryption overhead. For tasks where privacy and security do not matter and speed is the priority, a proxy works. Do not use a proxy on public Wi-Fi or for anything sensitive.
When to Use a VPN
Use a VPN for any situation where privacy, security, or encrypting all traffic matters: public Wi-Fi, torrenting, bypassing ISP throttling, protecting all device traffic from surveillance, or accessing region-restricted content on streaming platforms. VPNs handle all protocols and applications simultaneously, not just browser traffic. The cost is typically 3 to 10 euros per month for a quality provider.