Best Free Microservices Tools of 2025

Postman serves as a collaborative platform for developing APIs, designed to simplify the entire process of API creation and enhance teamwork, enabling the rapid development of superior APIs. The platform's features facilitate each phase of API construction, making it easier to collaborate and accelerate the creation of high-quality APIs. Users can quickly and effortlessly send requests for REST, SOAP, and GraphQL directly within Postman, optimizing their workflow. Additionally, it allows for the automation of manual tests, seamlessly integrating them into your CI/CD pipeline to safeguard against potential issues when code changes are deployed to production. API behavior can be communicated effectively by simulating endpoints and their respective responses without the need for a backend server setup. You can also generate and publish visually appealing, machine-readable documentation, which helps in making your API more accessible for users. Regular performance and response time checks ensure you stay informed about your API's health, allowing for proactive management. Lastly, Postman fosters a shared environment for API creation and consumption, enabling real-time collaboration among team members.

Crashtest Security, a SaaS-based security vulnerability scanner, allows agile development teams to ensure continuous security even before reaching Production. Our state-of the-art dynamic application security test (DAST), integrates seamlessly into your development environment and protects multipage and JavaScript applications, as well microservices and APIs. Crashtest Security Suite can be set up in minutes. You will also have advanced crawling options and the ability to automate your security. Crashtest Security can help you keep your code and customers safe by allowing you to see vulnerabilities in the OWASP Top 10.

Portainer Business makes managing containers easy. It is designed to be deployed from the data centre to the edge and works with Docker, Swarm and Kubernetes. It is trusted by more than 500K users. With its super-simple GUI and its comprehensive Kube-compatible API, Portainer Business makes it easy for anyone to deploy and manage container-based applications, triage container-related issues, set up automate Git-based workflows and build CaaS environments that end users love to use. Portainer Business works with all K8s distros and can be deployed on prem and/or in the cloud. It is designed to be used in team environments where there are multiple users and multiple clusters. The product incorporates a range of security features - including RBAC, OAuth integration and logging, which makes it suitable for use in large, complex production environments. For platform managers responsible for delivering a self-service CaaS environment, Portainer includes a suite of features that help control what users can / can't do and significantly reduces the risks associated with running containers in prod. Portainer Business is fully supported and includes a comprehensive onboarding experience that ensures you get up and running.

Tyk is an Open Source API Gateway and Management Platform that is leading in Open Source API Gateways and Management. It features an API gateway, analytics portal, dashboard, and a developer portal. Supporting REST, GraphQL, TCP and gRPC protocols We facilitate billions of transactions for thousands of innovative organisations. Tyk can be installed on-premises (Self-managed), Hybrid or fully SaaS.

DeployHub is a microservice catalog that tames your microservice implementation by displaying them all in one place. Track deployment details, SBOMs, inventory, consumers, version history, and the teams that support them. We empower cloud-native teams to achieve business agility through a managed approach to a microservice architecture. DeployHub's microservice tracking and versioning is a DevOps breakthrough giving teams a simple way to leverage cloud-native application-level architecture. DeployHub integrates with your CI/CD pipeline. You can start using our free version at deployhub.com. DeployHub is based on the Ortelius.io open source project.

RabbitMQ is a lightweight solution that can be effortlessly deployed both on-premises and in cloud environments. It is compatible with various messaging protocols, making it versatile for different use cases. Furthermore, RabbitMQ can be configured in distributed and federated setups, which cater to demanding scalability and high availability needs. With a vast user base, it stands out as one of the leading open-source message brokers available today. Organizations ranging from T-Mobile to Runtastic leverage RabbitMQ, showcasing its adaptability for both startups and large enterprises. Additionally, RabbitMQ is compatible with numerous operating systems and cloud platforms, offering a comprehensive suite of development tools for popular programming languages. Users can deploy RabbitMQ using tools like Kubernetes, BOSH, Chef, Docker, and Puppet, facilitating seamless integration into their existing workflows. Developers can also create cross-language messaging solutions using their preferred programming languages, such as Java, .NET, PHP, Python, JavaScript, Ruby, and Go, enhancing its utility across various projects.

Establish, safeguard, manage, and monitor your services seamlessly. With Istio's traffic management capabilities, you can effortlessly dictate the flow of traffic and API interactions between various services. Furthermore, Istio streamlines the setup of service-level configurations such as circuit breakers, timeouts, and retries, facilitating essential processes like A/B testing, canary deployments, and staged rollouts through traffic distribution based on percentages. It also includes built-in recovery mechanisms to enhance the resilience of your application against potential failures from dependent services or network issues. The security aspect of Istio delivers a thorough solution to address these challenges, and this guide outlines how you can leverage Istio's security functionalities to protect your services across different environments. In particular, Istio security effectively addresses both internal and external risks to your data, endpoints, communications, and overall platform security. Additionally, Istio continuously generates extensive telemetry data for all service interactions within a mesh, enabling better insights and monitoring capabilities. This robust telemetry is crucial for maintaining optimal service performance and security.

Codefresh was founded in 2014. It combines CI/CD and Image Management to create a complete container delivery platform that connects developers and operations. Codefresh allows startups and enterprises to instantly benefit from microservices, container-based technologies. The company is based out of Silicon Valley, Israel.

You can use your favorite debugging software to locally troubleshoot your Kubernetes services. Telepresence, an open-source tool, allows you to run one service locally and connect it to a remote Kubernetes cluster. Telepresence was initially developed by Ambassador Labs, which creates open-source development tools for Kubernetes such as Ambassador and Forge. We welcome all contributions from the community. You can help us by submitting an issue, pull request or reporting a bug. Join our active Slack group to ask questions or inquire about paid support plans. Telepresence is currently under active development. Register to receive updates and announcements. You can quickly debug locally without waiting for a container to be built/push/deployed. Ability to use their favorite local tools such as debugger, IDE, etc. Ability to run large-scale programs that aren't possible locally.

Aerobase is an open-source platform designed for Identity and Access Management (IAM), focusing on various aspects such as identity federation, single sign-on (SSO), robust and adaptive authentication, access control, account management, identity provisioning, and security for APIs and microservices, along with compliance to privacy regulations. This guide is intended to assist you in initiating your journey with Aerobase by detailing server setup and the utilization of the default database. However, it does not address advanced deployment alternatives. For more comprehensive insights into features or configuration possibilities, please refer to the additional reference materials available. Exploring those resources will enhance your understanding of Aerobase's capabilities.

Thundra helps application teams to develop, debug, test, and monitor modern microservices on the cloud. By offering everything from automated instrumentation to cloud app debugging and test optimization in a single platform, Thundra eliminates the need for multiple tools for pre-production & production environments. Thundra offers 2 products: Thundra Foresight, to help you monitor & troubleshoot your CI workflows & tests. The second product is Thundra APM, which is an application performance monitoring for serverless and containers.

Streamlining your workflow can be accomplished through the implementation of pipelines, which serve as the core of the CI process in Microtica. Each component and microservice undergoes its build process via a pipeline, regardless of whether the trigger is manual or automatic. This build process is governed by a single authoritative document, the microtica.yaml file located in the root directory of the repository. One of the standout features is user customizability, allowing each user to specify their build process and the commands executed simply by modifying the microtica.yaml file. Additionally, this flexibility empowers users to tailor their workflows to better suit their specific project needs.

Epsagon allows teams to instantly visualize, understand, and optimize their microservice architectures. With our unique lightweight auto-instrumentation, gaps in data and manual work associated with other APM solutions are eliminated, providing significant reductions in issue detection, root cause analysis and resolution times. Epsagon can increase development speed and reduce application downtime.

Establishing a cohesive logging framework is essential for ensuring that log data is both accessible and functional. Unfortunately, many current solutions are inadequate; traditional tools do not cater to the demands of modern cloud APIs and microservices, and they are not evolving at a sufficient pace. Fluentd, developed by Treasure Data, effectively tackles the issues associated with creating a unified logging framework through its modular design, extensible plugin system, and performance-enhanced engine. Beyond these capabilities, Fluentd Enterprise also fulfills the needs of large organizations by providing features such as Trusted Packaging, robust security measures, Certified Enterprise Connectors, comprehensive management and monitoring tools, as well as SLA-based support and consulting services tailored for enterprise clients. This combination of features makes Fluentd a compelling choice for businesses looking to enhance their logging infrastructure.