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GitHub Sponsors Matching Fund

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Become a sponsor to bagder

Daniel Stenberg


Hello friend!

You probably already know a bit about who I am and what I do, but I'll sum it up here if you're a new acquaintance!

I've been an active open source developer for 25 years. I live and work in Sweden. I have a wife and two kids. (Yeah, so I'm an old guy really.)

I work primarily on curl. The project I founded in 1998 and in which I am still the lead developer. With its estimated six billion installations world-wide, it is one of the most widely used software components ever.

Almost everything I do is focused on curl. Sometimes I reach out and do things in neighboring projects to ensure that curl runs smoother and better. Like libssh2, c-ares and my book projects everything curl, http2 explained and HTTP/3 explained.

Sponsorships to me will help me continue working on open source software, open networking standard protocols and producing open and freely available documentation of such software and protocols.

Pinned projects

  • curl/curl

    A command line tool and library for transferring data with URL syntax, supporting HTTP, HTTPS, FTP, FTPS, GOPHER, TFTP, SCP, SFTP, SMB, TELNET, DICT, LDAP, LDAPS, FILE, IMAP, SMTP, POP3, RTSP and R…

  • bagder/http3-explained

    A document describing the HTTP/3 and QUIC protocols

  • bagder/everything-curl

    The book documenting the curl project, the curl tool, libcurl and everything related to this.

    Perl 463
  • bagder/http2-explained

    A detailed document explaining and documenting HTTP/2, the successor to the widely popular HTTP/1.1 protocol

    CSS 1.6k

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$5 a month


You will receive a Sponsor badge on your profile

$6 a month


You are an awesome sponsor offering *just* a tad bit more.

$25 a month


You're a hero.

$100 a month


Mentioned and acknowledged as personal Patreon. The cream of the cream!

$1000 a month



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