Skip to content
You must be logged in to sponsor mholt

Become a sponsor to Matt Holt

@mholt

Matt Holt

mholt

Hello! 👋

I'm a full-time open source developer.

My open source projects...

  • make the Web safer and more private.
    • Caddy is the only web server to use HTTPS automatically and by default
    • CertMagic is a Go library that provisions and manages TLS certificates for servers
    • ACMEz is a fully-compliant RFC 8555 (ACME) implementation in pure Go
  • make developer lives easier.
    • PapaParse is a JavaScript library that parses CSV files
    • JSON-to-Go converts JSON to Go structs
    • curl-to-go converts curl commands to Go code
    • Archiver is a Go library for working with archive formats
    • libdns is a set of universal DNS record manipulation APIs
  • preserve personal and family history.
    • Timeliner downloads all your digital life onto a single timeline, stored locally
  • are often used in humanitarian and non-profit efforts.

My primary work is the Caddy web server. Caddy has:

  • 📄 >20 million TLS certificates under management
  • ⏬ >50 million downloads
  • 🐳 >500 million Docker pulls
  • 🔐 >1 trillion TLS connections secured
  • 📈 >10 TRILLION ‼️ HTTPS requests served

That's a lot of public good for a free project maintained by ~1 developer! Thankfully, Caddy has over 300 contributors. But coordinating that effort takes a lot of time and energy, so I now accept sponsorships to help fund ongoing maintenance of my projects.

Your sponsorships make a difference because although open source work can be satisfying, it is often a drain on mental, emotional, and physical energy. In addition to making full-time development possible, sponsors provide much-needed relief, leading to happier, healthier, less-stressed developers.

My goals for my projects are:

  1. Make a lasting, positive impact
  2. Foster a sense of community and goodwill
  3. Improve your quality of life

Some sponsor tiers get discounted professional services, which include:

  • Development
  • Consulting
  • Training
  • Presenting

Thank you for your support. Let's do this!

Current sponsors 62

@beyang
Private Sponsor
@jahands
@austinginder
@checkly
@mwcampbell
@TimRyanKaslovia
Private Sponsor
@dylanschultzie
@skip2networks
@francislavoie
@FiloSottile
@asayler
@wader
Private Sponsor
@orware
@kennwhite
@jloh
@TransistorFM
@lukegb
@lsanderson
@scorpion
@deltamualpha
@iqmcorp
@peakford
@aniftyco
@photostructure
@mbianch
@LachlanArthur
Private Sponsor
@panascais
@BestKru
@bacalhau-project
@scalar
@WMACCESS
Private Sponsor
@ottenhoff
@redirect-pizza
@cleandns-inc
@aftermarket-com
@AIPRM
@tailscale
@mercedes-benz
@sourcegraph-community
Private Sponsor
@lubos
@tulir
@AryeoHQ
@anchordotdev
@honeybadger-io
@FusionAuth
@apxcarter
@stripe
@kravietz
Past sponsors 166
@vcsjones
@iamcarbon
@moritzdietz
Private Sponsor
@toddvalentine
Private Sponsor
@dazoot
@fwessels
@venugopv
Private Sponsor
@Koru-Technology
@sbwaters
@jessekanner
@simsrw73
Private Sponsor
@marcellmars
Private Sponsor
@eip618

Featured work

  1. caddyserver/caddy

    Fast and extensible multi-platform HTTP/1-2-3 web server with automatic HTTPS

  2. mholt/PapaParse

    Fast and powerful CSV (delimited text) parser that gracefully handles large files and malformed input

    JavaScript 12,624
  3. caddyserver/certmagic

    Automatic HTTPS for any Go program: fully-managed TLS certificate issuance and renewal

    Go 5,077
  4. mholt/timeliner

    All your digital life on a single timeline, stored locally -- DEPRECATED, SEE TIMELINIZE (link below)

    Go 3,564
  5. mholt/json-to-go

    Translates JSON into a Go type in your browser instantly (original)

    JavaScript 4,521
  6. mholt/acmez

    Premier ACME client library for Go

    Go 285

Learn more about sponsoring developers and organizations.

Report abuse

Select a tier

$ a month

You'll receive any rewards listed in the $249 monthly tier. Additionally, a Public Sponsor achievement will be added to your profile.

$25 a month

Select

Indie

Perfect for the independent developer. Thank you for your support!

Benefits

Professional services

  • No discount

$50 a month

Select

Indie Pro

Perfect for the independent professional. Thank you for your support!

Benefits

Professional services

  • No discount

$99 a month

Select

Startup

Perfect for bootstrapped startups that are using Caddy.

Benefits

  • Exclusive access to Expert Caddy
  • Occasional email support
  • Jump on a call

Professional services

  • No discount

$249 a month

Select

Startup Pro

Perfect for serious bootstrapped startups using Caddy.

Benefits

  • Exclusive access to Expert Caddy
  • Occasional email support
  • Jump on a call
  • Optional publicity (brand sharing, case study page, tweets, etc.)
  • Triage priority

Professional services

  • 10% discount

$999 a month

Select

Business

Perfect for small businesses that are using Caddy.

Benefits

  • Exclusive access to Expert Caddy for everyone on your team
  • Exclusive access to private development Slack
  • Limited dedicated support (email, phone, video calls)
  • Custom publicity (brand sharing, case study page, tweets, etc.)

Professional services

  • 20% discount (with 6 mo. commitment)

$2,999 a month

Select

Business+

The best plan for small-medium businesses making serious use of Caddy or related libraries (CertMagic, ACMEz).

Benefits

  • Exclusive access to Expert Caddy for everyone on your team
  • Exclusive access to private development Slack
  • Limited dedicated support (email, phone, video calls)
  • Custom publicity (brand sharing, case study page, tweets, etc.)
  • Triage priority
  • Development priority
  • Custom branch/patches

Professional services

  • 🎓 Free onboarding
  • 🏷️ 35% discount (with 6 mo. commitment)
  • 📃 Custom legal (extra)
  • 📨 Custom billing and invoicing

$5,900 a month

Select

Enterprise

I highly recommend this plan for any use of Caddy in larger business and enterprise environments.

⚠️ Only 2 1 remaining.

Benefits

  • Exclusive access to Expert Caddy for everyone on your team
  • Exclusive access to private development Slack
  • Limited dedicated support (email, phone, video calls)
  • Optional publicity (brand sharing, case study page, tweets, etc.)
  • Triage priority
  • Development priority
  • Custom branch/patches
  • Guaranteed response within 2 business days (excluding vacation)

Professional services

  • 🏷️ 50% discount (with 6 mo. commitment)
  • 📃 Custom legal (extra)
  • 📨 Custom billing and invoicing

$11,900 a month

Select

Enterprise+

The ultimate plan to support extensive use of Caddy and keep your businesses online.

⚠️ Only 1 available.

Benefits

  • Exclusive access to Expert Caddy for everyone on your team
  • Exclusive access to private development Slack
  • Dedicated support (email, phone, video calls)
  • Optional publicity (brand sharing, case study page, tweets, etc.)
  • Triage & development priority
  • Custom branch/patches
  • Guaranteed response within 1 business day (excluding vacation)
  • Regular check-ins / standups

Professional services

  • ✨ Included (except on-call or extreme cases) (with 1 year commitment)
  • Custom legal (may be extra)
  • Custom billing and invoicing