Documented ways to change Accept-Language in Chrome (settings, DevTools, flags, extensions). | Dev Logs

Date: 2026-01-10 22:52 Summary: Documented ways to change Accept-Language in Chrome (settings, DevTools, flags, extensions).

[question] chrome 修改 accept-language

[try to solve]

1. Affect the real request header (recommended)

• Open chrome://settings/languages
• Add preferred languages and drag the target language to the top
• Restart Chrome and verify (Accept-Language usually follows that order)

2. Debug / one-off override

• DevTools → Network → More tools → Network conditions
  • If Accept-Language is available: uncheck “Use browser default” and set e.g. en-US,en;q=0.9
  • Usually session-only; UI varies by Chrome version

3. Forced override (more control)

• Header rewrite extensions (e.g. ModHeader) or a proxy (Charles / Proxyman)
• Launch flag (macOS example): quit Chrome, then open -a "Google Chrome" --args --lang=en-US (affects browser language-related behavior; good for temporary tests)

Verify with https://httpbin.org/headers or your own echo endpoint and confirm Accept-Language.