Best lego Alternatives in 2026

Updated October 2026

20 apps from certificate management software ranked against lego on the same published basis.

1
Certify The Web Free plan apiLinuxMacself-hostedWeb $4.92/mo7.4
lego vs Certify The Web
2
Certbot Free plan LinuxMacself-hostedWin Free7.1
lego vs Certbot
3
Qualys External Attack Surface Management Free trial apiLinuxWeb 7.1
lego vs Qualys External Attack Surface Management
4
OpenXPKI Free plan apiLinuxself-hostedWeb Free7.0
lego vs OpenXPKI
5
Oracle Cloud Infrastructure Secret Management Free plan apiWeb Free6.9
lego vs Oracle Cloud Infrastructure Secret Management
6
AWS Certificate Manager Free plan apiWeb Free6.8
lego vs AWS Certificate Manager
7
KeyTalk CKMS Free trial AndroidiOSLinuxMacself-hosted €5/mo6.8
lego vs KeyTalk CKMS
8
cert-manager Free plan apiLinuxself-hosted Free6.7
lego vs cert-manager
9
Entrust Certificate Manager AndroidapiiOSLinuxself-hosted 6.7
lego vs Entrust Certificate Manager
10
ManageEngine Key Manager Plus Free trial apiLinuxself-hostedWebWin $49.92/mo6.6
lego vs ManageEngine Key Manager Plus
11
Keyfactor Platform Free trial apiself-hostedWeb 6.4
lego vs Keyfactor Platform
12
DigiCert Trust Lifecycle Manager apiLinuxWebWin $3.33/mo6.3
lego vs DigiCert Trust Lifecycle Manager
13
GlobalSign Atlas apiWeb 6.3
lego vs GlobalSign Atlas
14
SSL.com Certificate Lifecycle Management apiWeb 6.3
lego vs SSL.com Certificate Lifecycle Management
15
Google Cloud Certificate Manager apiWeb 6.2
lego vs Google Cloud Certificate Manager
16
Certynx apiself-hostedWeb 6.1
lego vs Certynx
17
Sectigo Certificate Manager Free trial apiWeb $20.83/mo6.1
lego vs Sectigo Certificate Manager
18
acme.sh WinMacLinux 6.0
lego vs acme.sh
19
Microsoft Cloud PKI AndroidiOSMacWin $2/mo6.0
lego vs Microsoft Cloud PKI
20
Smallstep ZTNA iOSLinuxMacWin 6.0
lego vs Smallstep ZTNA

lego alternatives compared

#	App	Score	Free plan	From	Runs on
1	Certify The Web	7.4	Free plan	$4.92/mo	API, Linux, Mac, self-hosted, Web, Windows
2	Certbot	7.1	Free plan	Free	Linux, Mac, self-hosted, Windows
3	Qualys External Attack Surface Management	7.1	No	—	API, Linux, Web
4	OpenXPKI	7.0	Free plan	Free	API, Linux, self-hosted, Web
5	Oracle Cloud Infrastructure Secret Management	6.9	Free plan	Free	API, Web
6	AWS Certificate Manager	6.8	Free plan	Free	API, Web
7	KeyTalk CKMS	6.8	No	€5/mo	Android, iOS, Linux, Mac, self-hosted, Windows
8	cert-manager	6.7	Free plan	Free	API, Linux, self-hosted
9	Entrust Certificate Manager	6.7	No	—	Android, API, iOS, Linux, self-hosted, Web
10	ManageEngine Key Manager Plus	6.6	No	$49.92/mo	API, Linux, self-hosted, Web, Windows
11	Keyfactor Platform	6.4	No	—	API, self-hosted, Web
12	DigiCert Trust Lifecycle Manager	6.3	No	$3.33/mo	API, Linux, Web, Windows
13	GlobalSign Atlas	6.3	No	—	API, Web
14	SSL.com Certificate Lifecycle Management	6.3	No	—	API, Web
15	Google Cloud Certificate Manager	6.2	No	—	API, Web
16	Certynx	6.1	No	—	API, self-hosted, Web
17	Sectigo Certificate Manager	6.1	No	$20.83/mo	API, Web
18	acme.sh	6.0	No	—	Windows, Mac, Linux
19	Microsoft Cloud PKI	6.0	No	$2/mo	Android, iOS, Mac, Windows
20	Smallstep ZTNA	6.0	No	—	iOS, Linux, Mac, Windows

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Questions about lego alternatives

What is the best alternative to lego?

Certify The Web, number 1 in certificate management software with a score of 7.4 out of 10. The others here: Certbot, Qualys External Attack Surface Management, OpenXPKI and 16 more.

What is the best free alternative to lego?

Certify The Web is the best-ranked alternative with a free plan. 6 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked on what each maker publishes: documentation depth, a free tier and the platforms it runs on.