#save #info #variables #flags #output #application-json #transfer #curlview #breakdowns #ki-b-s

app curlview

A Rust-powered HTTP performance analyzer that visualizes curl timing metrics in a human-readable format

2 unstable releases

Uses new Rust 2024

new 0.2.0 May 20, 2025
0.1.0 May 20, 2025

#5 in #application-json

MIT license

14KB
281 lines

curlview

A modern Rust-based HTTP performance analyzer powered by curl. It visualizes timing metrics such as DNS lookup, TCP connection, TLS handshake, server processing, and content transfer in a human-readable format — similar to httpstat, but written in Rust.

Features

  • Visualize HTTP timing breakdowns
  • Show IP address and port info
  • Optional response body preview and saving
  • Colored CLI output
  • Fully configurable via environment variables
  • Supports all curl options (except a few reserved flags)

Installation

cargo install curlview

Usage

curlview https://example.com [CURL_OPTIONS...]

Example:

httpstat https://example.com -H "Accept: application/json"

IP Info: 192.168.0.1:50512  ⇄  93.184.216.34:443

  DNS Lookup   TCP Connection   TLS Handshake   Server Processing   Content Transfer
┌─────────────┬───────────────┬──────────────┬────────────────────┬─────────────────┐
   12ms      │     48ms      │     20ms     │        130ms       │      40ms       │
└─────────────┴───────────────┴──────────────┴────────────────────┴─────────────────┘

Download: 235.6 KiB/s, Upload: 0.0 KiB/s

Environment Variables

Variable Description Default
HTTPSTAT_SHOW_BODY Show response body in output false
HTTPSTAT_SHOW_IP Display local/remote IP/port info true
HTTPSTAT_SHOW_SPEED Show download/upload speed info false
HTTPSTAT_SAVE_BODY Save response body to temp file true
HTTPSTAT_CURL_BIN Custom curl binary path curl
HTTPSTAT_DEBUG Print debug info false
HTTPSTAT_TIMEOUT Request timeout in seconds 10

Disallowed curl flags

To maintain output consistency, the following flags are not allowed:

  • -w, --write-out
  • -D, --dump-header
  • -o, --output
  • -s, --silent

## License

MIT License

Dependencies

~5–15MB
~217K SLoC