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impers

Node.js binding for curl-impersonate via Koffi. A TypeScript port of curl_cffi.

impers is an HTTP client library for Node.js that can impersonate browsers' TLS/JA3 and HTTP/2 fingerprints. If you are blocked by some website for no obvious reason, you can give impers a try.

Node.js 18+ is required.

warning

impers is in a technical preview state, not even alpha. The docs may be inaccurate, all APIs are provisional, and subject to change.

Features​

  • Supports JA3/TLS and HTTP/2 fingerprint impersonation, including recent browsers and custom fingerprints.
  • Fast performance powered by libcurl.
  • Supports HTTP/2 and HTTP/3. impers is probably the first Node package that supports HTTP/3.
  • Supports WebSocket, with impersonation.
  • TypeScript first with full type definitions.
  • MIT licensed.
node-fetchaxiosgotundiciimpers
HTTP/2❌❌✅✅✅
HTTP/3❌❌❌❌✅
WebSocket❌❌❌✅✅
Fingerprints❌❌❌❌✅

Impersonate Suite​

impers is part of the impersonate suite.

  • curl-impersonate — a curl distribution that impersonates browsers.
  • curl_cffi — Python binding to curl-impersonate.
  • impers — Node.js binding to curl-impersonate.
  • impersonate.pro — commercial support, more fingerprints, and integrated solutions.

Acknowledgement​

License​

MIT.