Working remotely from China: the Great Firewall, VPNs, and staying online

The catch nobody warns you about

Domestic internet in China is fast and cheap. The problem is not speed, it is reach. The Great Firewall blocks a big slice of the toolset a remote worker takes for granted, so the honest question is not "is the wifi good" but "will my tools load at all". As of mid-2026, here is the lay of the land. Things move, so treat this as a map, not a guarantee.

Reliably blocked (assume they will not work without help):

• The whole Google suite: Search, Gmail, Drive, Docs, Calendar
• YouTube, WhatsApp, Instagram, Facebook, X
• ChatGPT and Claude, which are both blocked at the network level and geofenced by the providers themselves

The messy middle (works, but do not count on it):

• GitHub is usually reachable but slow, and some ISPs choke specific subdomains. Fine for a quick pull, painful for heavy CI.
• Slack, Notion, Zoom, and Microsoft Teams are throttled to varying degrees and behave differently city to city and day to day. Test yours before you rely on it.
• Note a separate, non-Firewall wrinkle: in early 2026 Slack wound down workspaces billed to mainland China, Hong Kong, and Macau. That hits teams billed inside Greater China, not a foreign team's own Slack, which just faces the usual throttling.

Two honest ways to stay online

1. An eSIM or roaming SIM that routes offshore (the clean path). This is the one most nomads underrate. An international travel eSIM gets its signal from a Chinese tower but sends your actual data out to servers in Hong Kong or Singapore under a roaming agreement, so it never passes through the domestic gateways where the Firewall does its filtering. Google, WhatsApp, and the rest just work, with no VPN app to install or maintain. The one thing to check: buy a plan that genuinely roams internationally, not one that resells a local China data profile, because a local profile sits behind the Firewall like any other domestic line.

2. A reputable VPN, installed before you land (the shifting path). A VPN can tunnel you out too, with two honest caveats. First, most VPN provider websites are themselves blocked inside China, so you have to download, install, and test it before you arrive. Second, which providers actually work is a moving target. China periodically knocks large providers offline, most recently in a spring 2026 crackdown, and reliability dips around politically sensitive dates. Do not stake your work week on a single VPN. Check current, China-specific reports before you fly, and have the offshore eSIM above as a backup.

A pre-departure checklist

• Buy and test an international eSIM before you go, and confirm it roams internationally
• If you use a VPN, install and verify it at home first, and add a second one as backup
• Download offline copies of anything critical (docs, boarding passes, maps)
• Set up any two-factor codes on an authenticator app, not on SMS to a number you might swap
• Tell teammates your comms may be patchy and agree on a fallback channel

Is using a VPN legal?

This is a grey area, and worth stating plainly rather than dramatizing. Only government-approved VPNs are technically legal for use in China, and the US State Department's travel advisory warns that VPN use could in theory lead to a fine or device confiscation. In practice, enforcement against foreign travelers using a personal VPN is very rarely reported, though police device spot-checks do happen. This is general information, not legal advice. If any of it matters to your situation, check your own government's current advisory and decide your own comfort level. Nothing here is a workaround for detection, and a 2026 cybersecurity-law update raised penalties for network and data violations generally, not for tourists loading a VPN.

Which city, same rules

The Firewall is national, so Shanghai, Hangzhou, Shenzhen, Guangzhou, and Beijing all live under it equally. Shenzhen has one quirk worth knowing: Hong Kong is a short hop away and runs on the open internet, so a border day trip is an easy reset. Wherever you base, sort your connectivity before you sort your apartment.

Related reading: paying for things in China as a foreigner and China visas for remote workers.