square/certigo
Some data may be outdated — see provenance labels.
A utility to examine and validate certificates in a variety of formats observed · 2026-09-29
Health v2 · maintenance only
89/100
- Activity 97
- Release rhythm 73
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-21. Adoption (stars, forks) is never an input.
- gap_med: 170
- age_days: 3798
- days_rel: 22
- days_push: 22
- n_releases_24m: 4
Adoption not part of the score
1035 stars · 76 forks observed · 2026-09-29
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Certigo is a Go command-line utility for examining, dumping, and validating TLS/SSL certificates in formats like X.509 (DER/PEM), PKCS7, PKCS12, and JCEKS. It can connect to remote servers (including via STARTTLS protocols) to inspect and verify certificate chains, with JSON output for scripting.
Use cases
- inspect a certificate file from the command line
- debug ssl/tls handshake issues with a remote server
- convert certificates between pem, der, pkcs12 and other formats
- validate a certificate chain and find common certificate errors
- check for expired certificates on a database or mail server via starttls
- script certificate analysis with output and jq
- examine a java keystore or pkcs12 bundle
When to choose
- you need a quick CLI to dump or validate certificates in many formats
- you are debugging TLS connections to servers using STARTTLS like MySQL, SMTP, or LDAP
- you want scriptable JSON output for certificate auditing
When to avoid
- you need a full PKI or certificate authority management solution
- you want a GUI certificate inspector
- you need continuous certificate lifecycle management or automated renewal
Facets
cli-tool · maturity stable
security cryptography developer-tools cli security developer-tools networking windows cross-platform cli go tls ssl x509 certificates pem pkcs12 jceks pkcs7 keystore starttls certificate-validation debugging command-line linux macos
1 source
- readme: https://github.com/square/certigo · fetched 2026-09-29 · 1b4507778459
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| square/certigo | main | 89 |
For agents
Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem