curl-cffi vs curl-impersoante vs HTTPie

Why do we need yet another http request tool?

Quick comparison

	curl-cffi	curl-impersonate	HTTPie
Browser impersonation	Yes	Yes	No
HTTP/2	Yes	Yes	No
HTTP/3	Yes	Yes	No
Easier options	Yes	No	Yes
Syntax highlighting	Yes	No	Yes
Batch execution	Yes	No	No

Note

Compared to curl-impersonate, curl-cffi CLI does not expose all impersonate options in current version, but that is to be updated soon.

curl-cffi vs curl-impersonate

curl is the swiss army knife of HTTP, but its syntax can be intimidating for beginners:

# curl
curl -X POST https://api.example.com/users \
  -H "Content-Type: application/json" \
  -d '{"name": "Alice", "age": 30}'

# curl-cffi
curl-cffi post https://api.example.com/users name=Alice age:=30

curl-cffi uses a more readable syntax with request items (key=value, key:=json, Header:Value) instead of flags like -H and -d.

That said, if you are already comfortable with curl syntax, you can use curl-impersonate directly for browser impersonation with familiar flags.

curl-cffi vs HTTPie

Syntax

HTTPie has a friendly CLI syntax for HTTP requests, and curl-cffi shares many of its ideas. However, there are some key differences:

Explicit methods. curl-cffi requires the HTTP method as a subcommand, while HTTPie guesses it based on whether data is present:

# HTTPie -- implicit POST because of data fields
http example.com/api name=test

# curl-cffi -- method is always explicit
curl-cffi post example.com/api name=test

This explicitness is intentional. It follows the Python philosophy of “explicit is better than implicit”, and it makes curl-cffi commands unambiguous when used by AI agents or in scripts, where guessing intent from context is unreliable.

HTTP/2 and HTTP/3

HTTPie only supports HTTP/1.1. curl-cffi supports HTTP/2 and HTTP/3 out of the box, which is critical for browser impersonation and for testing modern APIs.

Browser impersonation

curl-cffi can impersonate browsers’ TLS fingerprints, which HTTPie cannot do.

Batch execution

curl-cffi has a builtin run command that can execute multiple requests from a single file, supporting both .http and .har formats.

.http files – define multiple requests in a human-readable format, separated by ###. Supported by JetBrains IDEs and VS Code REST Client:

### Get users
GET https://api.example.com/users

### Create user
POST https://api.example.com/users
Content-Type: application/json

{"name": "Alice"}

curl-cffi run requests.http

.har files – replay HTTP traffic exported from Chrome DevTools. This is especially useful for reproducing real-world requests, including headers, cookies, and POST bodies:

curl-cffi run session.har

Neither curl nor HTTPie supports batch execution natively. With curl you would need a shell loop or xargs; with HTTPie you would need a wrapper script. curl-cffi run handles sequencing, error reporting, and a summary of failures out of the box.

See Batch Execution for full details on supported file formats and options.

When to use which

• curl-cffi – when you need browser impersonation, HTTP/2/3 support, or a CLI that works well with AI agents and scripts.

• curl / curl-impersonate – when you are already fluent in curl syntax and want the full power of libcurl.

• HTTPie – when you only need HTTP/1.1 and prefer implicit method detection.