8 GitOps Tools You Should Know [2026 List]

GitOps used to mean one thing, sync your Kubernetes manifests from Git. Today the term covers everything from application delivery to full infrastructure orchestration, and the tool you pick depends entirely on which problem you’re solving.

This article walks through eight of the most widely used GitOps tools in 2026, what each one is actually good at, and how teams typically combine them.

What we will cover:

1. What is GitOps?
2. What is a GitOps tool?
3. How to choose the right GitOps tool?
4. 8 best GitOps tools
5. Application GitOps vs infrastructure GitOps, which problem are you solving?

GitOps is a methodology for software development and infrastructure management that positions Git repositories as the single source of truth for your workflow. Instead of manually running commands to apply changes, GitOps revolves around declarative config files that are versioned in your repositories. CI/CD-driven tooling then consumes the files to automatically create and update your resources.

Here’s the GitOps workflow in a nutshell:

A GitOps tool provides a framework for automating software delivery using declarative configuration, IaC, and CI/CD, following GitOps principles. Although the exact features included vary significantly between choices, the overarching aim is to standardize how code moves from source repositories to live environments.

Many GitOps tools support an agent-driven pull-based architecture that makes it possible to fully automate deployments after new code changes are committed. The agent runs in your production environment; it periodically checks your repositories for new changes, then automatically applies them. This model requires less configuration and is more secure than classical CI/CD pipelines that connect to your infrastructure to “push” new changes.

The GitOps solution you choose will have a significant effect on how well your workflows perform. It’s crucial you make the right choice so you can manage your projects cohesively, without hitting roadblocks that slow you down or force an expensive switch to an alternative tool.

Key factors to consider when choosing a GitOps tool
✅ Available repository integrations	Many GitOps solutions work with any Git repository, but those that directly integrate with hosts such as GitHub, GitLab, or Bitbucket often provide a simpler experience by letting you manage deployments directly from pull requests and issues. It’s important to check that your preferred host is compatible.
✅ Supported deployment strategies	Tools that offer advanced rollout strategies, such as blue-green and canary deployments, give you more options for structuring and safely testing new releases.  These techniques can be tricky to implement manually, so it’s useful for native support to be included.
✅ Declarative configuration	Although GitOps solutions always utilize declarative configuration for your apps, you should also check that the tool itself can be installed in this way. This enables repeatable agent deployment into multiple environments.
✅ Drift detection	Drift occurs when changes in your live environments mean deployed resources no longer match the state defined in your repository.  Drift detection capabilities mean the tool responds by automatically restoring the correct state, ensuring your infrastructure performs reliably.
✅ Sync methods	GitOps tools create deployments and apply infrastructure changes by syncing your resources so they match the state of your repositories.  It’s helpful to favor tools that support multiple repository sync options, such as both automatic periodic syncs and manually initiated syncs via an API, CLI, or web UI.
✅ IaC integrations	Infrastructure-as-Code (IaC) and GitOps are closely related.  GitOps tools that offer native support for IaC solutions fully automate your infrastructure changes, ensuring developers don’t have to run potentially dangerous IaC commands themselves.
✅ Scalability	Any GitOps solution needs to be sufficiently scalable to match the size of your deployments.  Multi-cluster scenarios involving hundreds or thousands of projects may demand a different tool to those used by teams with fewer infrastructure components.
✅ Ease of use	GitOps is meant to simplify deployment workflows and make them more robust, so it is vital tools provide a straightforward developer experience that solves problems instead of creating new doubts.
✅ Support options	Good tools should be backed by convenient support options, such as forums, issue trackers, and documentation sites, that allow users to get help when they need it.

Not all these characteristics are applicable to every tool, but they’re good pointers to look for when evaluating the GitOps landscape.

Now that we’ve covered what a GitOps tool does and how to choose, let’s examine eight leading options that are ready to use today.

Some GitOps tools focus primarily on application delivery to Kubernetes (e.g., Argo CD, Flux, Codefresh, GitLab, Werf), while others focus on provisioning and managing the underlying infrastructure (e.g., Spacelift, Terraform, OpenTofu). 

Most teams run a combination of both — infrastructure GitOps to provision clusters and shared services, and application GitOps to ship workloads to those clusters.

The top GitOps tools include:

1. Argo CD
2. Flux CD
3. Spacelift
4. Codefresh
5. GitLab
6. Terraform
7. OpenTofu
8. Werf

Argo CD is the most widely deployed application GitOps tool in production today. It runs as a controller inside your Kubernetes cluster, watches one or more Git repositories for changes to manifests, Kustomize overlays, or Helm charts, and reconciles the live cluster state back to whatever is in Git.

Its strength is the visual model. The web UI gives you a real-time tree of every application, its sync status, and the diff between Git and the cluster, which is genuinely useful when you’re debugging why a deployment didn’t land. 

Argo CD also pairs with Argo Rollouts for canary and blue-green strategies, and with Argo Workflows for pipelines, so it tends to anchor a broader “Argo stack” rather than living alone.

Key features

• Pull-based reconciliation from Git to Kubernetes (manifests, Helm, Kustomize, Jsonnet)
• Real-time visual diff between desired and live state
• Multi-tenancy via Projects, RBAC, and SSO
• ApplicationSet controller for managing dozens or hundreds of clusters from one definition
• CNCF graduated, with the largest adoption footprint of any GitOps tool

Backed by the CNCF as a graduated project and, according to a 2025 CNCF end-user survey, used to manage application delivery in nearly 60% of surveyed Kubernetes clusters.

Category: Application GitOps, optimized for Kubernetes

License: Open source (Apache 2.0)

Website: https://argoproj.github.io/cd/ 

Use case example: Getting Started With Argo CD

Argo CD ratings and reviews:

• G2: 4.6/5 (34 reviews)

Flux CD is an alternative to Argo CD that has a narrower scope but more customization opportunities. It’s a CNCF-graduated GitOps toolkit designed to enable continuous progressive delivery to your Kubernetes clusters, with strong integrations with cloud providers and other services.

Flux is composed of focused controllers (one for sources, one for Kustomize, one for Helm, one for image updates) that you wire together yourself, while Argo CD ships as a single application with a strong UI.

Teams that lean toward composability and a more Unix-philosophy approach tend to pick Flux. Teams that want one box to install and a UI by default tend to pick Argo.

Flux deploys from Git, OCI registries, or S3-compatible storage, which makes it a good fit when artifacts live outside Git itself. The 2.8 release adds Helm v4 support with server-side apply, CEL-based readiness checks for Helm-managed objects, and ArtifactGenerator for extracting and modifying Helm charts. 

The Flux Operator now ships with a web UI (previewed at KubeCon Atlanta 2025) that gives cluster dashboards and deep-dive views for ResourceSets, HelmReleases, and Kustomizations, closing much of the historical UX gap with Argo.

Key features

• Modular controllers for sources, Kustomize, Helm, image automation, and notifications
• Pulls from Git, OCI registries, or S3-compatible object storage
• Multi-cluster fleet management from a single Flux instance
• Image automation that promotes new container builds without manual PRs
• CNCF graduated

Category: Application GitOps

License: Open source (Apache 2.0)

Website: https://fluxcd.io 

Adoption signal: ~8k GitHub stars on fluxcd/flux2

Use case example: FluxCD Tutorial With Examples

Spacelift is an infrastructure orchestration platform built for the GitOps pattern from day one. It runs your IaC across OpenTofu, Terraform, Terragrunt, CloudFormation, AWS CDK, Pulumi, Kubernetes, Ansible, and more from a single control plane, with policy as code, drift detection, and governed self-service built in rather than bolted on.

Where most application GitOps tools sync manifests into a cluster, Spacelift sits one layer down and orchestrates the infrastructure that everything else runs on.

A Stack maps a directory in your repo to a real environment. Push to that directory and Spacelift plans the change against live state, shows the affected resources directly in the pull request, runs your OPA policies, and applies once it’s approved. If something drifts after the fact, scheduled drift detection notices and (optionally) re-applies.

Spacelift Intelligence is the platform’s AI layer, generally available since March 2026. It ships in two parts: Spacelift Intent, a natural-language deployment path (“spin up a dev cluster for this branch”) aimed at rapid prototyping and experimentation, and an AI Infrastructure Assistant that lets teams query state, diagnose failed runs, manage drift, and work with policies through chat. 

Both run within the same policies, credentials, and audit trail as your IaC workflows, giving platform teams a way to support high-velocity work without forcing every developer to learn Terraform.

Check out how to get started with Spacelift.

Key features

• Orchestrates OpenTofu, Terraform, Terragrunt, CloudFormation, AWS CDK, Pulumi, Kubernetes, and Ansible from one control plane
• Native pull request integrations that show the plan diff and policy result before merge
• Built-in drift detection and one-click or automatic reconciliation
• Governed self-service with policy as code, Spaces, and RBAC
• Spacelift Intelligence for natural-language infrastructure requests with the same governance as IaC
• SaaS or self-hosted deployment with private worker pools inside your own cloud accounts

Category: Infrastructure GitOps

Pricing: Free tier for individuals and small teams. Commercial SaaS tiers and self-hosted enterprise above that.

Website: https://spacelift.io/ 

Use case example: How Spacelift Can Improve Your Infrastructure Orchestration

Spacelift ratings and reviews:

• G2: 4.9/5 (9 reviews)

Codefresh is the Argo CD-based GitOps platform from Octopus Deploy, which acquired Codefresh in February 2024. 

The Codefresh team are core Argo maintainers, so under the hood you’re getting upstream Argo CD wrapped in a commercial control plane that handles fleet-wide observability, RBAC, secrets routing, and progressive delivery across many clusters without each team running its own Argo instance.

The usual reason a team picks Codefresh over vanilla Argo CD is scale. Once you’re past 5 or 10 clusters, or once you need real audit trails, SAML SSO, and someone to call when something breaks at 2 AM, the managed layer starts to pay for itself.

The Octopus connection adds a second dimension worth knowing about. If you also need to deploy to VMs, Windows hosts, or non-Kubernetes environments alongside your cloud-native apps, those are Octopus’s traditional strengths and they sit on the same commercial roadmap now.

Key features

• Hosted control plane over self-hosted Argo runtimes, so your clusters stay inside your perimeter
• Fleet-wide dashboards showing every deployment, drift event, and rollout across clusters
• Reusable application templates and promotion sequences across environments
• Live debugging with breakpoints in delivery pipelines
• Codefresh team are core maintainers of the upstream Argo project
• Part of the broader Octopus Deploy platform if you also deploy to VMs or Windows

Category: Application GitOps (Argo CD-based)

Pricing: Free for up to 5 developers. Pro and Enterprise plans for larger teams.

Website: https://octopus.com/codefresh

Codefresh ratings and reviews:

• G2: 4.6/5 (70 reviews, listed as Octopus Deploy Codefresh)

GitLab is primarily a Git host and CI/CD platform, but it earns a place on this list because of its native Flux integration.

Install the GitLab Agent for Kubernetes inside your cluster, point it at a GitLab project, and Flux runs in the background to keep your manifests and Helm charts synced from that project’s repository. You manage applications, pipelines, and now GitOps deployments from the same interface.

The trade-off is obvious. You’re committing to GitLab as the center of your stack. If you already run GitLab Premium or Ultimate, the GitOps integration is largely free and reduces the operational surface area you have to maintain. 

If you’re on GitHub or Bitbucket, the same outcome is reachable by running Flux or Argo CD directly, and the GitLab path doesn’t make sense.

Key features

• GitLab Agent for Kubernetes brokers the connection from your cluster to GitLab
• Flux runs under the hood, so you keep the open-source reconciliation model
• Pull-based architecture, your cluster never has to be exposed to GitLab
• Kubernetes resource health visible in the GitLab UI alongside pipelines and source

Category: Application GitOps (Flux-based, GitLab-managed)

Pricing: Free tier for personal projects; Premium and Ultimate tiers starting at $29 per user per month

Website: https://about.gitlab.com 

Use case example: How to Implement GitLab CI/CD Pipeline with Terraform

GitLab ratings and reviews:

• G2: 4.5/5 (871 reviews)

Terraform is the IaC tool most likely to be the substrate of your infrastructure GitOps workflow. On its own, Terraform isn’t a GitOps tool. It’s a CLI and a state model. It becomes GitOps when something else (Spacelift, Atlantis, Argo, the Flux Tofu controller, or a homegrown pipeline) reacts to Git changes by running plan and apply against the right state.

Where Terraform earns its slot on this list is reach. The provider ecosystem is the largest of any IaC tool, the registry has thousands of community modules, and every cloud vendor publishes first-party providers. 

If your organization runs more than one cloud or more than one SaaS that exposes infrastructure, Terraform is almost certainly already in the picture, and the question is what GitOps layer you wrap around it.

Note, that HashiCorp moved Terraform from MPL to the Business Source License in 2023, which is what prompted OpenTofu to fork (covered next). For most teams the BSL has no practical impact, but if you’re building a product that competes with HCP Terraform, it does.

In February 2025, IBM completed its $6.4B acquisition of HashiCorp, so Terraform is now an IBM product alongside Vault, Consul, and the rest of the HashiCorp portfolio. IBM has signaled deeper integration between Terraform and Red Hat Ansible Automation Platform, but the day-to-day Terraform experience remains unchanged.

Key features

• The largest provider ecosystem in IaC, with first-party support from every major cloud
• Declarative HCL syntax and a mature module registry
• Wired into Spacelift, Atlantis, the Flux Tofu Controller, or Argo CD for GitOps workflows
• HCP Terraform available as HashiCorp’s hosted execution and state backend

Category: Infrastructure GitOps substrate (needs an orchestrator to be GitOps)

License: BSL

Website: https://www.terraform.io 

Use case examples: How to Use Terraform with GitOps and adding GitOps support using Spacelift

Terraform ratings and reviews:

• G2: 4.7/5 (96 reviews)

OpenTofu is the Linux Foundation fork of Terraform created when HashiCorp moved Terraform to the BSL in 2023.

It’s a near drop-in replacement (most existing Terraform configurations work without modification) and is governed by an open steering committee rather than a single vendor. If staying on a fully open-source license matters to your organization, this is the path off Terraform without rewriting your modules.

Two and a half years into its life as an independent project, OpenTofu has shipped features that diverge meaningfully from Terraform. State encryption is built into the binary, early variable evaluation works inside module sources, and provider iteration with for_each is now stable. 

The 1.10 and 1.11 releases added OCI registry support, native S3 state locking, ephemeral resources, write-only attributes, and the enabled meta-argument. In April 2025, OpenTofu was accepted into the Cloud Native Computing Foundation, giving the project formal vendor-neutral governance to match its open license.

The Flux Tofu Controller and Spacelift both treat OpenTofu as a first-class runner, so the GitOps story is identical to Terraform’s with no functional gap.

Key features

• Drop-in compatibility with most Terraform configurations
• State encryption built into the binary, not bolted on
• Early variable validation in module sources and the terraform block
• OCI registry support, ephemeral resources, and write-only attributes in recent releases
• CNCF project (accepted April 2025), with multi-vendor steering committee governance
• First-class support from Spacelift and the Flux Tofu Controller

Category: Infrastructure GitOps substrate (needs an orchestrator to be GitOps)

License: Mozilla Public License 2.0 (open source)

Website: https://opentofu.org 

Adoption signal: ~28.7k GitHub stars on opentofu/opentofu

Use case example: OpenTofu Getting Started, How to Install & Examples

Werf is a CNCF sandbox CLI that bundles container image building, Helm-based deployment, and cleanup into a single workflow, all anchored to your Git history. The project’s “Giterminism” principle means every build and deployment is reproducible from a specific commit, with no out-of-band inputs allowed.

Unlike Argo CD or Flux, Werf is push-based and runs inside whatever CI system you already have (GitLab CI, GitHub Actions, Jenkins). There’s no agent in your cluster to install or maintain, which is the main reason teams pick it. The trade-off is that you lose the in-cluster reconciliation loop that pull-based tools give you, so drift detection isn’t automatic the way it is with Argo.

Realistically, Werf is a fit if you’re already running a strong CI system, you want to consolidate Docker plus Helm plus deploy into one step, and you don’t need continuous reconciliation. Outside that profile, Argo or Flux is usually the right call.

Key features

• Builds container images, manages Helm releases, and tracks resource health from a single CLI
• Giterminism keeps every build and deployment reproducible from a commit
• No cluster agent, runs inside your existing CI
• Multi-environment and multi-cluster deployment with cleanup of stale artifacts and namespaces

Category: Application GitOps (push-based, CI-driven)

License: Open source (Apache 2.0)

Website: https://werf.io 

Adoption signal: ~4.7k GitHub stars on werf/werf

The tools above now fall into two camps that solve different problems.

• Application GitOps is the original use case. Sync application manifests, Helm charts, or Kustomize overlays from Git into a running Kubernetes cluster. Argo CD, Flux CD, Codefresh, GitLab’s Flux integration, and Werf all live here. If your team’s job is shipping containerized workloads to clusters that already exist, this is the camp you need.
• Infrastructure GitOps applies the same pattern one layer down. Clusters, networks, databases, IAM, and everything else that gets provisioned before applications can run. Spacelift, Terraform, and OpenTofu live here. If your team’s job is provisioning and governing the underlying cloud resources, this is where you start.

Most teams eventually run both. A common pairing looks like this:

If you need to…	Pair these
Ship apps to Kubernetes, nothing more	Argo CD or Flux CD on its own
Manage Kubernetes plus the infrastructure under it	Argo CD or Flux + Spacelift (with Terraform or OpenTofu)
Run GitOps across multi-cloud infrastructure with no Kubernetes mandate	Spacelift + Terraform or OpenTofu
Centralize everything inside one Git host	GitLab (Flux-based) + Terraform
Self-host with deterministic builds	Werf + OpenTofu

Most teams won’t pick one GitOps tool, they’ll pick two or three that fit different layers of the stack. Argo CD or Flux for syncing applications into Kubernetes. Spacelift for orchestrating the infrastructure underneath. Terraform or OpenTofu as the IaC language those infrastructure workflows are written in. The interesting question isn’t which tool is “best” in 2026, it’s which combination matches how your team actually ships.

AI-assisted GitOps is the one genuinely new shift worth watching. Tools are starting to propose changes, summarize diffs, and provision infrastructure from natural-language requests while keeping the same policy and audit guarantees. Spacelift Intelligence is one example on the infrastructure side, and projects in the Flux ecosystem are experimenting on the application side.

Want to see GitOps for infrastructure in practice? Start for free with Spacelift, or book a demo.