🪞 PRIMP 🦀🐍

HTTP client that can impersonate web browsers

Quick Start

🦀 Rust → /crates/primp

[dependencies]
primp = { git = "https://github.com/deedy5/primp" }

use primp::{Client, Impersonate};

#[tokio::main]
async fn main() -> Result<(), primp::Error> {
    let client = Client::builder()
        .impersonate(Impersonate::ChromeV146)
        .build()?;
    
    let resp = client.get("https://tls.peet.ws/api/all").send().await?;
    println!("Body: {}", resp.text().await?);
    
    Ok(())
}

🐍 Python → /crates/primp-python

pip install primp

import primp

client = primp.Client(impersonate="chrome_146")
resp = client.get("https://tls.peet.ws/api/all")
print(resp.text)

Browser profiles

Browser	Profiles
Chrome	chrome_144, chrome_145, chrome_146, chrome
Safari	safari_18.5, safari_26, safari_26.3, safari
Edge	edge_144, edge_145, edge_146, edge
Firefox	firefox_140, firefox_146, firefox_147, firefox_148, firefox
Opera	opera_126, opera_127, opera_128, opera_129, opera
Random	random

OS: android, ios, linux, macos, windows, random

Fingerprint Comparison

Target: https://tls.browserleaks.com/json | Reference: Chrome 146 / Linux

{
  "user_agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36",
  "ja4": "t13d1516h2_8daaf6152771_d8a2da3f94cd",
  "ja4_r": "t13d1516h2_002f,0035,009c,009d,1301,1302,1303,c013,c014,c02b,c02c,c02f,c030,cca8,cca9_0005,000a,000b,000d,0012,0017,001b,0023,002b,002d,0033,44cd,fe0d,ff01_0403,0804,0401,0503,0805,0501,0806,0601",
  "ja4_o": "t13d1516h2_acb858a92679_a4c42e1680d9",
  "ja4_ro": "t13d1516h2_1301,1302,1303,c02b,c02f,c02c,c030,cca9,cca8,c013,c014,009c,009d,002f,0035_fe0d,002b,0012,44cd,000a,ff01,0033,0005,0023,0000,000d,0010,000b,001b,0017,002d_0403,0804,0401,0503,0805,0501,0806,0601",
  "akamai_hash": "52d84b11737d980aef856699f885ca86",
  "akamai_text": "1:65536;2:0;4:6291456;6:262144|15663105|0|m,a,s,p"
}

Fingerprint	Primp	curl-cffi (Chrome 142)*
user_agent	✅	❌
ja4	✅	✅
ja4_r	✅	✅
ja4_o	✅	❌
ja4_ro	✅	❌
akamai_hash	✅	✅
akamai_text	✅	✅
Total	7/7	4/7

* curl-cffi maxes at chrome142 (macOS). No OS parameter — OS is baked into each profile. Primp supports independent OS selection via impersonate_os.

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Disclaimer

This tool is for educational purposes only. Use it at your own risk.