Sites like curl

01 · Entity

About curl

curl curl.se

curl

Wikidata: command line tool and library for transferring data with URL syntax

Top 10K · #2,999 English 2 technologies Crawled Nov 6, 2026

Visit curl

Summary by Claude

Official site of curl, a free and open-source command-line tool and C library (libcurl) for transferring data with URLs over protocols such as HTTP, HTTPS, FTP, SFTP, SMTP and MQTT, with documentation, downloads and source code.

Who it’s for

Software developers, system administrators

Business model

Open source, sponsorships and donations

• open-source networking software
• command-line HTTP client
• libcurl library
• file transfer over FTP/SFTP
• HTTP/2 and HTTP/3 support
• TLS and proxy support
• scripted data transfer
• curl documentation and downloads

02 · Embedding space

Competitor map

Each alternative by how close its vector is to curl’s (x) and how much traffic it gets, how much of the stack it shares, or where it sits in the embedding space itself (y). Lines split each axis at the median. Hover for the numbers, click to jump to it in the list.

1. 01
   ifconfig.me Top 10K English

   What Is My IP Address? - ifconfig.me

   Get my IP Address

   • Google Cloud
   • Google Cloud DNS
   • Google Fonts
   • Google Search Console

   0 say ifconfig.me is a good alternative to curl 0 say ifconfig.me isn’t a real alternative to curl

   Comment
   Very close cos 0.897
2. 02
   Drupal drupal.org Top 10K English

   Client Challenge

   free and open-source web content management system

   • Fastly
   • Amazon SES
   • Atlassian
   • GlobalSign
   • Google Search Console
   • Mailchimp

   0 say Drupal is a good alternative to curl 0 say Drupal isn’t a real alternative to curl

   Comment
   Close cos 0.894
3. 03
   Linux kernel kernel.org Top 10K English

   The Linux Kernel Archives

   Unix-like operating system kernel, basis for all Linux operating systems

   • nginx
   • Google Search Console

   0 say Linux kernel is a good alternative to curl 0 say Linux kernel isn’t a real alternative to curl

   Comment
   Close cos 0.891
4. 04
   doxygen.org Top 10K English

   Doxygen homepage

   Source code documentation and analysis tool

   • Bootstrap
   • Cloudflare
   • Cloudflare DNS
   • Cloudflare Web Analytics
   • Google AdSense

   0 say doxygen.org is a good alternative to curl 0 say doxygen.org isn’t a real alternative to curl

   Comment
   Close cos 0.888
5. 05
   filezilla-project.org Top 10K English

   FileZilla - The free FTP solution

   FileZilla - The free FTP solution for both client and server. Filezilla is open source software distributed free of charge.

   • Apache HTTP Server
   • Google Search Console

   0 say filezilla-project.org is a good alternative to curl 0 say filezilla-project.org isn’t a real alternative to curl

   Comment
   Close cos 0.885
6. 06
   Python python.org Top 1K English

   Welcome to Python.org

   The official home of the Python Programming Language

   • Fastly
   • nginx
   • Font Awesome
   • GlobalSign
   • Google Search Console
   • Google Workspace

   0 say Python is a good alternative to curl 0 say Python isn’t a real alternative to curl

   Comment
   Close cos 0.885
7. 07
   Softpedia softpedia.com Top 10K English

   software and tech-news website based in Romania

   • Cloudflare
   • Google Search Console
   • Meta Business Suite

   0 say Softpedia is a good alternative to curl 0 say Softpedia isn’t a real alternative to curl

   Comment
   Close cos 0.884
8. 08
   PHP php.net Top 1K English

   PHP

   PHP is a popular general-purpose scripting language that powers everything from your blog to the most popular websites in the world.

   • bunny.net
   • Font Awesome
   • Google Search Console
   • jQuery
   • Matomo

   0 say PHP is a good alternative to curl 0 say PHP isn’t a real alternative to curl

   Comment
   Close cos 0.884
9. 09
   WeTransfer wetransfer.com Top 10K English

   WeTransfer | Skicka stora filer snabbt

   Det enkla, snabba och säkra sättet att skicka filer till hela världen utan ett konto. Dela filer, foton och videor idag helt gratis.

   • Adobe
   • Amazon Publisher Services
   • Apple Business
   • Atlassian
   • Amazon CloudFront
   • DocuSign

   0 say WeTransfer is a good alternative to curl 0 say WeTransfer isn’t a real alternative to curl

   Comment
   Close cos 0.884
10. 10
    Syncthing syncthing.net Top 10K English

    Syncthing

    open source continuous file synchronization software

    • Fastly
    • Bootstrap
    • cdnjs
    • Font Awesome
    • GitHub Pages
    • Hetzner DNS

    0 say Syncthing is a good alternative to curl 0 say Syncthing isn’t a real alternative to curl

    Comment
    Close cos 0.881
11. 11
    R Project r-project.org Top 10K English

    R: The R Project for Statistical Computing

    programming language for statistical analysis

    • Apache HTTP Server
    • Bootstrap
    • jQuery
    • Microsoft 365

    0 say R Project is a good alternative to curl 0 say R Project isn’t a real alternative to curl

    Comment
    Close cos 0.881
12. 12
    jQuery jquery.com Top 1K English

    jQuery

    jQuery: The Write Less, Do More, JavaScript Library

    • Cloudflare
    • Cloudflare DNS
    • jQuery
    • PHP
    • WordPress

    0 say jQuery is a good alternative to curl 0 say jQuery isn’t a real alternative to curl

    Comment
    Close cos 0.881
13. 13
    Go go.dev Top 10K English

    The Go Programming Language

    Go is an open source programming language that makes it simple to build secure, scalable systems.

    • Google Cloud
    • Google Cloud DNS
    • Google Fonts
    • Google Search Console
    • Google Tag Manager
    • Google Workspace

    0 say Go is a good alternative to curl 0 say Go isn’t a real alternative to curl

    Comment
    Close cos 0.877
14. 14
    NLnet Labs nlnetlabs.nl Top 10K English

    NLnet Labs - Home

    Research & Development, Internet architecture, DNS, Routing, Stability and Security.

    • nginx
    • Adobe Fonts
    • Bootstrap
    • Font Awesome
    • Google Workspace
    • jQuery

    0 say NLnet Labs is a good alternative to curl 0 say NLnet Labs isn’t a real alternative to curl

    Comment
    Close cos 0.877
15. 15
    WordPress wordpress.org Top 100 English

    Blog Tool, Publishing Platform, and CMS | WordPress.org

    Open source software which you can use to easily create a beautiful website, blog, or app.

    • nginx
    • Google Fonts
    • Google Search Console
    • Google Tag Manager
    • PHP
    • WordPress

    0 say WordPress is a good alternative to curl 0 say WordPress isn’t a real alternative to curl

    Comment
    Close cos 0.878
16. 16
    RFC Editor rfc-editor.org Top 1K English

    RFC Editor

    The official home of RFCs. RFCs outline computer networking and Internet foundations, including Internet Standards and historical or informative content.

    • Cloudflare
    • Cloudflare DNS
    • Google Search Console
    • Google Workspace
    • Nuxt
    • Vue.js

    0 say RFC Editor is a good alternative to curl 0 say RFC Editor isn’t a real alternative to curl

    Comment
    Close cos 0.876
17. 17
    Perl perl.org Top 10K English

    The Perl Programming Language - www.perl.org

    The Perl Programming Language at Perl.org. Links and other helpful resources for new and experienced Perl programmers.

    • Fastly
    • Bootstrap
    • GlobalSign
    • Google Analytics
    • Google Fonts
    • Google Search Console

    0 say Perl is a good alternative to curl 0 say Perl isn’t a real alternative to curl

    Comment
    Close cos 0.875
18. 18
    actionverb.com Top 10K English

    Managed File Transfer, SFTP & File Sharing — Files.com

    Files.com moves and manages every file your business depends on — across any cloud and any partner, from one place. It replaces MFT tools, SFTP servers, file servers, and scripts.

    • Amazon SES
    • Google Search Console
    • Google Workspace
    • Next.js
    • React
    • Vercel

    0 say actionverb.com is a good alternative to curl 0 say actionverb.com isn’t a real alternative to curl

    Comment
    Close cos 0.873
19. 19
    Let's Encrypt letsencrypt.org Top 10K English

    Let's Encrypt

    Let's Encrypt is a free, automated, and open Certificate Authority brought to you by the nonprofit Internet Security Research Group (ISRG). Read all about our work in our Annual Report.

    • Cloudflare DNS
    • Font Awesome
    • Google Workspace
    • Netlify
    • Zendesk

    0 say Let's Encrypt is a good alternative to curl 0 say Let's Encrypt isn’t a real alternative to curl

    Comment
    Close cos 0.875
20. 20
    phpBB phpbb.com Top 10K English

    open-source Internet forum package written in PHP

    • Cloudflare
    • Cloudflare DNS

    0 say phpBB is a good alternative to curl 0 say phpBB isn’t a real alternative to curl

    Comment
    Close cos 0.873

Ranked by score: the cosine similarity of each site’s vector to curl.se’s, less a small penalty for generic sites that are close to everything. Highlighted technologies are ones curl uses too. Votes and comments come from visitors and don’t change the ranking.

04 · Fingerprints

Technology

What curl is built with, and what its closest competitors use, from its homepage’s code and its DNS records.