Compare / Snyk alternative

An open source Snyk alternative for servers and deployed apps

Snyk is built around the developer: code, dependencies and images, checked in the IDE, pull requests and CI. Stackurity is built around what you run, with an open-source core you can host yourself.

In short. Snyk is a developer security platform. It scans your code, open-source dependencies, container images and infrastructure as code from the IDE, the CLI, pull requests and CI, and it is hosted. Stackurity is open-source vulnerability and end-of-life management for what you run: a read-only agent on your servers plus repositories, images, Kubernetes and AWS, with CISA KEV priorities and fixes tracked until a fresh report confirms them.

If you want security checks while developers write code, Snyk is the stronger fit. If you want to know what is vulnerable or end of life on your servers and deployed applications, self-hosted for free or hosted from $10 a month, Stackurity is built for that.

What each one is

Snyk

Snyk sells a security platform made of several products: Snyk Code for static analysis of your own code, Snyk Open Source for dependencies, Snyk Container for images, Snyk IaC for infrastructure as code, and further products for secrets, API and web testing and AI agents^[1]. In October 2026 it launched Evo Agentic AppSec, a set of AI security agents; most are in preview, among them the Evo Dependency Firewall, which blocks malicious and out-of-policy packages at install time and is in experimental preview for select customers^[15]. Developers use it through IDE plugins, the CLI and source control integrations^[1]^[7]. Its Free and Team plans are aimed at individual developers and small teams; Enterprise uses prepaid credits^[1].

Stackurity

Stackurity is open-source vulnerability and end-of-life management. It keeps one live inventory of the software on your servers, deployed applications, repositories, container images, Kubernetes and AWS managed services. It matches that inventory against new advisories and the CISA KEV catalogue every hour and against end-of-life dates every day, and gives each team a short list of upgrades, most urgent first. After a fix it checks again and records whether the issue is really gone. The core is Apache-2.0, sold by OUTDO INC as Stackurity Cloud and as paid licences for extra features.

Why teams look for a Snyk alternative

Three needs can lead a team to look beyond Snyk, and Stackurity answers only some of them:

Coverage of what is deployed. Snyk scans repositories, projects through the CLI and IDEs, container images and, on Enterprise plans, Kubernetes workloads^[2]^[3]^[12]. Stackurity adds an agent for the servers themselves, including runtimes installed by hand and the libraries applications actually load, plus end-of-life dates for operating systems and runtimes.
Self-hosting and open source. Snyk is hosted by Snyk, multi-tenant or single-tenant^[14]; on Enterprise plans, Snyk Broker connects it to systems inside your network^[10]. Stackurity can run entirely on your own server under Apache-2.0, with no vendor account.
A different pricing model. Snyk’s Team plan is sized by developers, and it counts contributing developers as those who committed to a monitored private repository in the last 90 days^[1]. Stackurity Cloud is priced by assets (servers, applications, repositories, images, clusters), and the self-hosted Community edition is free.

If what you need is static analysis of your own code, Stackurity is not an alternative. Stackurity checks the software you run and the dependencies you declare; it does not scan your own source code.

Snyk pricing compared with Stackurity

On 29 Oct 2026, Snyk’s pricing page listed^[1]:

Free: $0 a month, with up to 5 projects and test limits per product (for example 200 Snyk Open Source tests and 100 Snyk Container tests).
Team: from $25 a month, for development teams of up to 10 developers, with higher test limits, Jira integration and next business day support.
Enterprise: prepaid credits at $1 each, spent per capability, for example 1 credit per active contributor per day for Snyk Open Source and 0.33 per monitored image per day for Snyk Container. Evo capabilities such as AI pentesting and coding agent security are not available on Free or Team.

Stackurity is priced by asset rather than by developer. Community is free forever when self-hosted. Stackurity Cloud has a 14-day free trial without a card, then Starter at $10 a month for 5 assets, Team at $35 for 20 and Business at $79 for 50, and yearly plans cost ten months. See pricing for details.

Snyk vs Stackurity, side by side

Scroll the table sideways to see every column.

	Snyk	Stackurity
What it checks	Your own code (Snyk Code, static analysis), open-source dependencies (Snyk Open Source), container images (Snyk Container) and infrastructure as code (Snyk IaC); the wider platform also covers secrets and API and web testing^[1]. Evo Agentic AppSec adds AI agents, mostly in preview, including a dependency firewall that blocks malicious packages at install time^[15]	Known vulnerabilities and end of life in the software you install and deploy: operating system packages, runtimes, application libraries, images and managed services
Inventory sources	Repositories through source control integrations, the Snyk CLI, IDE plugins and CI^[1]^[2]; container images and registries^[3]; Kubernetes workloads on Enterprise plans^[12]	A read-only agent on Linux servers (installed packages, runtimes installed by hand, the libraries deployed applications load), repositories and CI scans, container images, Kubernetes workloads, AWS managed services, and CycloneDX or SPDX SBOMs
Ecosystems	Snyk Open Source supports C/C++, Dart and Flutter, Elixir, Go, Java and Kotlin, JavaScript, .NET, PHP, Python, Ruby, Scala, Swift and Objective-C, and TypeScript, with limited support for Rust^[2]. Snyk Container lists the Linux distributions it supports^[3]	Operating system packages assessed on Debian, Ubuntu, Alpine, Rocky Linux, AlmaLinux, Red Hat Enterprise Linux, SUSE Linux Enterprise, openSUSE Leap, Oracle Linux and Amazon Linux 2023 and 2. npm, Composer, PyPI, Go, RubyGems, NuGet and Dart; Maven, Gradle, Cargo, Hex and Swift through stack packs (C/C++ and CocoaPods are inventoried only)
End-of-life tracking	For a container image on an unsupported distribution, for example one that has reached end of life, Snyk shows a message that it is unsupported^[3]. End-of-life dates for runtimes or services are not covered in the docs we checked	End-of-life dates for operating systems, runtimes, Kubernetes and AWS managed services, checked daily, aware of distributions that still patch their own packages
CISA KEV and exploitation priority	A Priority Score and a Risk Score built from factors such as CVSS, exploit maturity, EPSS and reachability^[4]^[5]. The CISA KEV catalogue is one of the sources Snyk uses to determine exploits^[6]	CISA KEV checked hourly. Each finding gets a priority from P1 (most urgent) to P4 from exploitation, exposure and environment, with one sentence on why
Fix tracking and verification	Fix pull requests, which can be opened automatically for GitHub, Bitbucket, GitLab and Azure Repos^[9]; pull request checks that block new vulnerabilities^[13]	One card per upgrade with the version to move to and every issue it clears; Check again asks the agent for a fresh report and records passed, partly fixed or still open. Pro adds Renovate pull requests for npm and Composer and opt-in automatic fixing on hosts
Developer tools	IDE plugins for VS Code, JetBrains IDEs, Visual Studio and Eclipse^[7]; the CLI, source control and CI/CD integrations^[2]	No IDE plugin. A CLI and GitHub Action for CI, with a gate that fails a build by severity, priority or CISA KEV
Deployment	Hosted by Snyk, multi-tenant or as a single-tenant Snyk Private Cloud; on Enterprise plans, data can be hosted in US, EU (Frankfurt) or Australian regions^[14]. Snyk Broker connects it to systems in private networks, on Enterprise plans^[10]	Self-hosted with Docker Compose or a Helm chart, with no vendor account and no telemetry, or hosted as Stackurity Cloud (India, DigitalOcean Bangalore)
Licence	Commercial service; the Snyk CLI is open source under Apache-2.0^[11]	Apache-2.0 core. Automatic fixing, evidence reports, several teams and single sign-on are paid Pro features
Pricing	Free: $0 with test limits per product and up to 5 projects. Team: from $25 a month, for teams of up to 10 developers. Enterprise: prepaid credits at $1 each, charged per capability, for example per active contributor or per monitored image per day^[1]	Community: free forever, self-hosted. Stackurity Cloud: Starter $10 a month (5 assets), Team $35 (20 assets), Business $79 (50 assets), after a 14-day free trial
AI assistant (MCP)	Snyk Studio, with a Snyk MCP server, for AI coding assistants such as Claude Code, Cursor, Codex CLI, Gemini CLI and GitHub Copilot^[8]	Built-in MCP server with OAuth sign-in, for Claude, ChatGPT, Cursor, VS Code and other MCP clients. Read-only unless you allow changes

Snyk details checked on 29 Oct 2026; the numbers in brackets link to the sources. Stackurity details: compatibility, editions, AI assistants and pricing.

Where Snyk is stronger

Security while code is written. IDE plugins for VS Code, JetBrains IDEs, Visual Studio and Eclipse show issues and fixes in the editor^[7], and Snyk Studio brings checks into AI coding assistants^[8].
Static analysis and more. Snyk Code analyses your own code, and Snyk IaC checks infrastructure as code^[1]. Stackurity checks the software you run and the dependencies you declare; it does not scan your own source code.
Language coverage. Snyk Open Source lists C/C++, Swift and Objective-C, and Elixir, which Stackurity does not assess^[2].
Fix pull requests across source control. Automatic Fix PRs work with GitHub, Bitbucket, GitLab and Azure Repos^[9], and pull request checks stop new vulnerabilities before merge^[13].
Prioritisation signals. Its scores use exploit maturity, EPSS, reachability and other factors^[4]^[5].
Data regions. On Enterprise plans, data can be hosted in the US, the EU or Australia^[14]. Stackurity Cloud runs in India today.

Where Stackurity is stronger

Servers and deployed applications. A read-only agent reads each Linux server’s packages, runtimes installed by hand and the libraries applications load.
End of life. Daily end-of-life data for operating systems, runtimes, Kubernetes and AWS managed services such as RDS, Lambda and EKS.
Exploitation first, with a reason. CISA KEV, exposure and environment set a P1 to P4 priority, and each finding says in one sentence why.
Fixes verified on the host. Check again asks the agent for a fresh report and records whether the issue is gone, and audit reports count only real fixes.
Open source and self-hosted. Apache-2.0, free forever on your own server with all detection features, or Stackurity Cloud from $10 a month. Automatic fixing, evidence reports, several teams and single sign-on are paid Pro features.

Which should you choose?

Choose Snyk if

you want developers to see issues in the IDE and in pull requests, before code ships;
you need static analysis of your own code or infrastructure-as-code checks;
your languages include ones Stackurity does not assess, such as C/C++ or Swift;
you need hosted data in the US, the EU or Australia, on an Enterprise plan.

Choose Stackurity if

your main gap is what is running on servers and in deployed applications, not what is in the repository;
you need end-of-life tracking for operating systems, runtimes, Kubernetes and AWS managed services;
you want to self-host an open-source tool, or pay by asset rather than by developer;
you want a short, exploitation-first list of upgrades and proof that each fix landed.

Using them together

Snyk and Stackurity cover different stages, so many teams could run both: Snyk in the IDE, in pull requests and in CI, and Stackurity on the servers, images and clusters where the code ends up. Both can scan repositories and container images, so decide which tool alerts for those to avoid duplicate tickets. Stackurity’s CI gate (stackurity scan --fail-on-kev, for example) is optional if Snyk already gates your builds.

Questions

Is there an open source alternative to Snyk?

For dependency, container and server vulnerabilities, yes: Stackurity’s core is open source under Apache-2.0 and can be self-hosted for free. It covers open-source packages in repositories, images and on servers, plus end of life. It does not replace Snyk Code’s static analysis, IaC checks or IDE plugins.

Is Stackurity a drop-in replacement for Snyk?

No. Snyk covers static analysis of your code, IDE plugins, infrastructure as code and more, which Stackurity does not. Stackurity replaces Snyk only where your need is open-source dependency and image scanning, or where you mainly need to know what is vulnerable or end of life on servers and deployed applications.

How much does Snyk cost?

On 29 Oct 2026 Snyk’s pricing page listed a Free plan at $0 with test limits, a Team plan from $25 a month for teams of up to 10 developers, and an Enterprise subscription based on prepaid credits at $1 each. Check snyk.io/plans for current prices.

Does Stackurity scan my source code?

No. Stackurity checks the software you run and the dependencies you declare; it does not scan your own source code. In repositories it reads lockfiles and manifests to find the open-source packages you use. For static analysis, keep a tool such as Snyk Code.

Can I self-host Stackurity?

Yes. The Community edition is free forever under Apache-2.0 and runs with Docker Compose or a Helm chart on your own server, with no vendor account and no telemetry. Paid features are unlocked with an offline licence key.

Does Stackurity open fix pull requests?

With Pro, Stackurity provides the configuration for Renovate pull requests in npm and Composer repositories, using a Renovate runner you operate. On servers, Pro can also apply fixes automatically, opt-in per host and limited by remediation policies you set.

Try Stackurity on what you run

Start a 14-day free trial of Stackurity Cloud, no card needed, or download the free Community edition and run it on your own server.

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Sources

Details of other products were checked on 29 Oct 2026 against their own documentation, websites, pricing pages and GitHub READMEs, listed below. Products change; follow the links for the current details. Details of Stackurity come from its documentation and pricing. Product names are trademarks of their owners and are used here only to refer to their products.