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acme.sh alternatives

acme.sh is a free Unix shell ACME client for automating SSL/TLS certificates across Linux, macOS, Windows through Cygwin, and self-hosted systems. It can issue, renew, install, and revoke certificates, with daily renewal checks, ECDSA, RSA, SAN, and wildcard support, and validation through web, standalone, Apache, Nginx, DNS, and other modes. It supports ZeroSSL, Let’s Encrypt, SSL.com, Google Public CA, Actalis, Pebble strict mode, and other RFC8555-compliant authorities. Its shell implementation needs no Python dependency and generally no root or sudo access.

  1. 1

    Certify The Web

    Free plan APILinuxMac+3

    Teams needing centralized certificate deployment and monitoring — Certify The Web adds web management, role-based access, monitoring, and deployment tasks for many server and cloud targets.

    7.6 Free plan · paid from $4.99/mo Visit site
  2. 2

    GeoTrust

    Paid APILinuxWeb+1

    Businesses wanting certificates plus security scanning — GeoTrust combines SSL certificates and automation with daily certificate monitoring and vulnerability scans, unlike acme.sh’s ACME client focus.

    5.8 From $2/mo Visit site
  3. 3

    Certbot

    Free plan LinuxMacSelf-hosted+1

    Command-line administrators using Let’s Encrypt — Certbot focuses on Let’s Encrypt certificates, with Apache and Nginx integrations and renewal rules based on remaining certificate lifetime.

    7.6 Free plan Visit site
  4. 4

    EJBCA

    Free plan Open source APILinuxMac+3

    Organizations running multi-PKI certificate authorities — EJBCA provides full open-source PKI with CA, RA, and VA modules, enrollment APIs, validation services, and HSM integrations.

    9.1 Free plan · 30-day trial Visit site
  5. 5

    lego

    Free plan APILinuxMac+1

    Developers wanting a Go ACME library — lego is an independent Go ACME client and library with CLI and library use, four challenge methods, and over 200 DNS providers.

    7.2 Open source Visit site
  6. 6

    Let's Encrypt

    Free plan Open source APILinuxMac+3

    Users seeking a free certificate authority — Let’s Encrypt is the certificate authority itself, issuing 90-day DV certificates and wildcard certificates through DNS-01 rather than acting as a client.

    8.8 Free plan Visit site
  7. 7

    OpenXPKI

    Free plan APILinuxSelf-hosted+1

    Enterprises managing customizable X.509 PKI workflows — OpenXPKI offers multi-realm enterprise PKI with customizable workflows, web administration, enrollment interfaces, connectors, and PKCS#11 HSM support.

    7.1 Free plan Visit site
  8. 8

    AWS Certificate Manager

    Free plan APIWeb
    7.4 Free plan · paid from $1 Visit site
  9. 9

    cert-manager

    Free plan APILinuxSelf-hosted
    7.4 Free plan Visit site
  10. 10

    Dogtag Certificate System

    Free plan APILinuxSelf-hosted
    7.3 Free plan Visit site
  11. 11

    ManageEngine Key Manager Plus

    Free plan APILinuxSelf-hosted+2
    7.2 Free plan · paid from $59/mo · 30-day trial Visit site
  12. 12

    Google Cloud Certificate Manager

    Free plan APIWeb
    7.0 Free plan · paid from $0.00 Visit site
  13. 13

    win-acme

    Free plan Windows
    6.5 Open source Visit site
  14. 14

    KeyTalk CKMS

    Free trial AndroidAPIiPhone+5
    6.2 Pricing on request Visit site
  15. 15

    Keyfactor Platform

    Free trial APISelf-hostedWeb
    6.1 Pricing on request · 30-day trial Visit site
  16. 16

    Oracle Cloud Infrastructure Certificates

    Free plan Web
    6.1 Free plan Visit site
  17. 17

    DigiCert ONE

    Paid APILinuxMac+3
    5.9 Pricing on request Visit site
  18. 18

    DigiCert Trust Lifecycle Manager

    Paid APILinuxWeb+1
    5.9 Visit site
  19. 19

    Entrust Certificate Manager

    Paid AndroidAPIiPhone+3
    5.8 Pricing on request Visit site
  20. 20

    Qualys Certificate Inventory

    Free plan Web
    5.8 Free plan Visit site
  21. 21

    Garnet Certificate Lifecycle Management

    Paid APILinuxWindows
    5.7 Pricing on request Visit site
  22. 22

    Sectigo Certificate Manager

    Free trial APIWeb
    5.7 Pricing on request Visit site
  23. 23

    Certynx

    Paid APISelf-hostedWeb
    5.5 Pricing on request Visit site
  24. 24

    GlobalSign Atlas

    Paid APIWeb
    5.5 Pricing on request Visit site

Readers may still seek alternatives when they want a graphical control plane, broader certificate-management workflows, paid support, vulnerability scanning, or a different implementation language. acme.sh’s manual DNS mode also needs a new TXT record for every renewal, so it cannot renew automatically in that case. When switching, weigh whether you need centralized monitoring, enterprise PKI functions, integrations with specific servers or cloud services, multiple certificate authorities, or a Go library instead of a shell client. Also compare each option’s operating systems, certificate scope, automation model, and price against acme.sh’s free plan.

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