Open-Source DevOps · certimate-go

certimate

Certimate is an open-source, self-hosted SSL certificate management tool that automates the full lifecycle of certificate issuance, renewal, deployment, and monitoring through a visual interface. It supports 70+ DNS providers and 150+ deployment destinations with zero external dependencies.

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Source: GitHub — github.com/certimate-go/certimate

8.8k

GitHub stars

852

Forks

Primary language

MIT

License (OSI-approved)

Key facts

Objective fields from the source. Values we can't verify are shown as “Unknown” rather than guessed.

Field	Value
Repository	certimate-go/certimate
Owner	certimate-go
Primary language	Go
License	MIT — OSI-approved
Stars	8.8k
Forks	852
Open issues	50
Latest release	v0.4.26 (2026-06-23)
Last updated	2026-07-03
Source	https://github.com/certimate-go/certimate

What certimate is

Go-based ACME client with embedded storage (no external database required), supporting DNS-01 and HTTP-01 challenge methods, multiple certificate formats (PEM, PFX, JKS), and integration with Let's Encrypt, ZeroSSL, Google Trust Services, and other CAs. Lightweight footprint (~16 MB memory) with workflow orchestration engine.

Quickstart

Get the certimate source

Clone the repository and explore it locally.

terminalbash

1git clone https://github.com/certimate-go/certimate.git2cd certimate3# follow the project's README for install & configuration

Need it deployed, integrated, or customized instead? DEV.co ships production installs.

Best use cases

Multi-cloud certificate lifecycle automation

Manage certificates across AWS, Alibaba Cloud, Tencent Cloud, and other providers using a single visual workflow; automate renewal and deployment without manual intervention.

Kubernetes and CDN certificate deployment

Automatically provision and renew certificates to 150+ destinations including Kubernetes, Cloudflare, Akamai WAF, and load balancers with minimal configuration.

Self-hosted environments requiring data privacy

Deploy on-premises with all certificate data stored locally; suitable for regulated environments where external certificate management services are not permitted.

Implementation considerations

Data persistence: Configure durable volume mounts (e.g., /app/pb_data in Docker) to survive container restarts and ensure certificate history is retained.
Default credentials: Change default admin account ([email protected] / 1234567890) immediately on first login; store credentials securely (e.g., secrets manager).
DNS provider authentication: Each DNS registrar requires API credentials; audit and rotate credentials regularly per your security policy.
Workflow testing: Start with non-critical domains to validate DNS challenges and deployment targets before automating production certificates.
Monitoring and alerting: Configure notification channels (Slack, email, Telegram) for certificate renewal failures; implement external uptime monitoring for the Certimate service itself.

When to avoid it — and what to weigh

Enterprise SLA and compliance guarantees required — Project disclaims all warranties (MIT license); no vendor support structure or liability coverage provided. Not suitable for regulated industries requiring formal support agreements.
Early-stage software risk intolerance — Latest release (v0.4.26) shows recent updates, but project created August 2024; only ~2 years old. Minimal production track record in large deployments.
Complex multi-tenancy with billing and audit trails — Built as single-user or small-team tool; no native RBAC, billing, or advanced audit logging mentioned. Not designed for managed service delivery.
Windows-first operations with legacy infrastructure — Primarily Linux/Docker-focused despite claiming Windows compatibility; GUI interface and documentation examples favor Linux/container deployment.

License & commercial use

MIT License (permissive OSI-approved). Allows commercial use, modification, and distribution with no warranty. Must include copyright notice and license text.

MIT License permits commercial use without explicit restriction. However, project includes explicit disclaimer of all warranties and liability; vendors using Certimate in commercial products assume all support and indemnification burden. Review with legal counsel before offering as managed service.

DEV.co evaluation signals

Editorial assessment — not user reviews. Directional, with an explicit confidence level.

Signal	Assessment
Maintenance	Active
Documentation	Adequate
License clarity	Clear
Deployment complexity	Low
DEV.co fit	Good
Assessment confidence	High

Security considerations

Self-hosted means no data leaves your infrastructure; all certificate secrets stored locally. However, consider: (1) API credentials for DNS/hosting stored in plaintext in Certimate database—verify encryption at rest; (2) default admin credentials pose initial risk; (3) no mention of input validation, rate limiting, or audit logging; (4) review source code for cryptographic library choices (Go stdlib crypto is generally strong, but verify ACME client implementation); (5) network isolation recommended (do not expose on public internet without auth/TLS frontend).

Alternatives to consider

cert-manager (Kubernetes-native)

Industry standard for Kubernetes certificate lifecycle if your primary use case is K8s; tighter integration, better documentation, broader adoption. Requires Kubernetes cluster.

Certbot + custom automation

ACME client with wider community support and more examples; lower-level, requires custom scripting for deployment orchestration; no built-in UI.

Commercial platforms (Digicert, GlobalSign, etc.)

Managed SaaS with full support, compliance audits, and SLAs; suitable for regulated industries; higher cost and external data dependency.

Software development agency

Build on certimate with DEV.co software developers

Deploy Certimate in minutes with Docker or binary, or consult our DevOps team to integrate it into your infrastructure. No external database or complex setup required.

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certimate FAQ

Can I use Certimate with my DNS provider (e.g., Cloudflare, Route53)?

Likely yes—70+ DNS providers supported including AWS Route53, Cloudflare, GoDaddy, Alibaba Cloud, Tencent Cloud, etc. Check docs.certimate.me/reference/providers for full list.

Does Certimate require a database?

No. It is zero-dependency; uses embedded local storage. Only requirement is a mount point for persistence (e.g., volume in Docker).

Is my certificate data encrypted?

Unclear from provided data. All data is stored locally (not sent to external services), but documentation does not specify encryption-at-rest for certificate secrets. Requires review of source code or security documentation.

What if Certimate service goes down—will renewals fail?

Yes. Renewals are orchestrated by Certimate; if the service is unavailable, scheduled renewals will miss their deadline. Implement uptime monitoring and alerting.

Work with a software development agency

Need help beyond evaluating certimate? DEV.co is a software development agency offering software development services and web development for teams of every size. Our software developers and web developers build custom software, web applications, APIs, and open-source devops integrations — and maintain them long-term.

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