Best lego Alternatives in 2026

Updated October 2026

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

1
Certify The Web Free plan apiLinuxMacself-hostedWeb $4.92/mo8.0
lego vs Certify The Web
2
KeyTalk CKMS Free trial AndroidiOSLinuxMacself-hosted €5/mo7.5
lego vs KeyTalk CKMS
3
Qualys External Attack Surface Management Free trial apiLinuxWeb 7.5
lego vs Qualys External Attack Surface Management
4
ManageEngine Key Manager Plus Free trial apiLinuxself-hostedWebWin $49.92/mo7.3
lego vs ManageEngine Key Manager Plus
5
Certbot Free plan LinuxMacself-hostedWin Free7.1
lego vs Certbot
6
Entrust Certificate Manager AndroidapiiOSLinuxself-hosted 7.1
lego vs Entrust Certificate Manager
7
Keyfactor Platform Free trial apiself-hostedWeb 7.0
lego vs Keyfactor Platform
8
Oracle Cloud Infrastructure Secret Management Free plan apiWeb Free7.0
lego vs Oracle Cloud Infrastructure Secret Management
9
Sectigo Certificate Manager Free trial apiWeb $20.83/mo6.8
lego vs Sectigo Certificate Manager
10
AWS Certificate Manager Free plan apiWeb Free6.7
lego vs AWS Certificate Manager
11
DigiCert Trust Lifecycle Manager apiLinuxWebWin $3.33/mo6.7
lego vs DigiCert Trust Lifecycle Manager
12
SSL.com Certificate Lifecycle Management apiWeb 6.6
lego vs SSL.com Certificate Lifecycle Management
13
GlobalSign Atlas apiWeb 6.5
lego vs GlobalSign Atlas
14
Certynx apiself-hostedWeb 6.4
lego vs Certynx
15
Google Cloud Certificate Manager apiWeb 6.4
lego vs Google Cloud Certificate Manager
16
Smallstep ZTNA iOSLinuxMacWin 6.4
lego vs Smallstep ZTNA
17
Microsoft Cloud PKI AndroidiOSMacWin $2/mo6.3
lego vs Microsoft Cloud PKI
18
acme.sh WinMacLinux 6.2
lego vs acme.sh
19
TigerTrust WebWinLinux 6.2
lego vs TigerTrust
20
DigiCert ONE Web 6.0
lego vs DigiCert ONE

lego alternatives compared

#	Tool	Score	Free plan	From	Runs on
1	Certify The Web	8.0	Free plan	$4.92/mo	API, Linux, Mac, self-hosted, Web, Windows
2	KeyTalk CKMS	7.5	No	€5/mo	Android, iOS, Linux, Mac, self-hosted, Windows
3	Qualys External Attack Surface Management	7.5	No	—	API, Linux, Web
4	ManageEngine Key Manager Plus	7.3	No	$49.92/mo	API, Linux, self-hosted, Web, Windows
5	Certbot	7.1	Free plan	Free	Linux, Mac, self-hosted, Windows
6	Entrust Certificate Manager	7.1	No	—	Android, API, iOS, Linux, self-hosted, Web
7	Keyfactor Platform	7.0	No	—	API, self-hosted, Web
8	Oracle Cloud Infrastructure Secret Management	7.0	Free plan	Free	API, Web
9	Sectigo Certificate Manager	6.8	No	$20.83/mo	API, Web
10	AWS Certificate Manager	6.7	Free plan	Free	API, Web
11	DigiCert Trust Lifecycle Manager	6.7	No	$3.33/mo	API, Linux, Web, Windows
12	SSL.com Certificate Lifecycle Management	6.6	No	—	API, Web
13	GlobalSign Atlas	6.5	No	—	API, Web
14	Certynx	6.4	No	—	API, self-hosted, Web
15	Google Cloud Certificate Manager	6.4	No	—	API, Web
16	Smallstep ZTNA	6.4	No	—	iOS, Linux, Mac, Windows
17	Microsoft Cloud PKI	6.3	No	$2/mo	Android, iOS, Mac, Windows
18	acme.sh	6.2	No	—	Windows, Mac, Linux
19	TigerTrust	6.2	No	—	Web, Windows, Linux
20	DigiCert ONE	6.0	No	—	Web

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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 8.0 out of 10. The others here: KeyTalk CKMS, Qualys External Attack Surface Management, ManageEngine Key Manager Plus and 16 more.

What is the best free alternative to lego?

Certify The Web is the best-ranked alternative with a free plan. 4 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, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing.