Page 17 | Best Application Development Software for Linux of 2025

Flux

Flux CD

Flux is a set of continuous and progressive delivery solutions for Kubernetes that are open and extensible. The latest version of Flux brings many new features, making it more flexible and versatile. Flux is a CNCF Incubating project. Flux and Flagger deploy apps with canaries, feature flags, and A/B rollouts. Flux can also manage any Kubernetes resource. Infrastructure and workload dependency management are built-in. Flux enables application deployment (CD) and (with the help of Flagger) progressive delivery (PD) through automatic reconciliation. Flux can even push back to Git for you with automated container image updates to Git (image scanning and patching). Flux works with your Git providers (GitHub, GitLab, Bitbucket, can even use s3-compatible buckets as a source), all major container registries, and all CI workflow providers. Kustomize, Helm, RBAC, and policy-driven validation (OPA, Kyverno, admission controllers) so it simply falls into place.

View Software

kpt

kpt is a package-centric toolchain that enables a WYSIWYG configuration authoring, automation, and delivery experience, which simplifies managing Kubernetes platforms and KRM-driven infrastructure at scale by manipulating declarative configuration as data, separated from the code that transforms it. Most Kubernetes users either manage their resources using conventional imperative graphical user interfaces, command-line tools (kubectl), and automation (e.g., operators) that operate directly against Kubernetes APIs, or declarative configuration tools, such as Helm, Terraform, cdk8s, or one of the dozens of other tools. At a small scale, this is largely driven by preference and familiarity. As companies expand the number of Kubernetes development and production clusters they use, creating and enforcing consistent configurations and security policies across a growing environment becomes difficult.

View Software

Code Intelligence

Our platform uses various security techniques, including coverage-guided and feedback-based fuzz testing, to automatically generate millions of test cases that trigger hard-to-find bugs deep within your application. This white-box approach protects against edge cases and speeds up development. Advanced fuzzing engines generate inputs that maximize code coverage. Powerful bug detectors check for errors during code execution. Uncover true vulnerabilities only. Get the input and stack trace as proof, so you can reliably reproduce errors every time. AI white-box testing uses data from all previous test runs to continuously learn the inner-workings of your application, triggering security-critical bugs with increasingly high precision.

View Software

Argo

Open-source tools for Kubernetes to run workflows, manage clusters and do GitOps right. Kubernetes-native workflow engine supporting DAG and step-based workflows. Declarative continuous delivery with a fully-loaded UI. Advanced Kubernetes deployment strategies such as Canary and Blue-Green made easy. Argo Workflows is an open-source container-native workflow engine for orchestrating parallel jobs on Kubernetes. Argo Workflows is implemented as a Kubernetes CRD. Model multi-step workflows as a sequence of tasks or capture the dependencies between tasks using a graph (DAG). Easily run compute-intensive jobs for machine learning or data processing in a fraction of the time using Argo Workflows on Kubernetes. Run CI/CD pipelines natively on Kubernetes without configuring complex software development products. Designed from the ground up for containers without the overhead and limitations of legacy VM and server-based environments.

View Software

Vanilla.PDF

Vanilla.PDF Labs

Vanilla.PDF is a powerful, modern, and open-source PDF processing toolkit designed to provide maximum flexibility while remaining easy to use. Whether you are building a small script or an enterprise-level application, Vanilla.PDF offers all the tools you need to create, modify, sign, and analyze PDF files with precision and efficiency. Our framework supports the entire range of PDF standards, including PDF 2.0 and archival formats such as PDF/A, as well as advanced PAdES electronic signatures with full PKCS#11 hardware token and smart card integration. This ensures compliance with the highest industry and legal standards for document authenticity and integrity. Vanilla.PDF is built with developers in mind — it offers a clean, well-documented API, accompanied by fully-featured examples that showcase practical real-world usage. This means you can integrate it into your projects quickly and reliably, with confidence that the results will meet the market’s highest expectations.

View Software

AdonisJS

AdonisJS includes everything you need to create a fully functional web app or an API server. So stop wasting hours downloading and assembling hundreds of packages. Use AdonisJS and be productive from day one. AdonisJS is not a minimalist framework. To give your projects a head start, we pack many baseline features within the core of the framework. AdonisJS has a feature-rich routing layer with support for route groups, subdomain-based routing, and resource resources. Controllers are first-class citizens in AdonisJS. They help you remove the inline route handlers to dedicated controller files. Along with the standard body parser, the support for managing file uploads is baked into the framework core. The schema-based validator of AdonisJS provides you with both runtime validations and static type safety. Create traditional-style server-rendered web apps using the home-grown template engine of AdonisJS.

View Software

LoopBack

A highly extensible Node.js and TypeScript framework for building APIs and microservices. A brand new LoopBack core to deliver great extensibility and flexibility written in TypeScript/ES2017. Create powerful APIs easily with a new creative experience for defining REST APIs and handling API requests/responses. A new, improved programming model with dependency injection and new concepts such as components, mixins, repositories, etc. make this the most extensible version yet. The LoopBack 4 CLI is a command-line interface that can scaffold a project or extension. The CLI provides the fastest way to get started with a LoopBack 4 project that adheres to best practices. LoopBack is a highly-extensible, open-source Node.js framework that enables you to create dynamic end-to-end REST APIs with little or no coding. Access data from major relational databases, MongoDB, SOAP, and REST APIs. Incorporate model relationships and access controls for complex APIs.

View Software

HTTPie

HTTPie is making APIs simple and intuitive for those building the tools of our time. AI assistant, HTTP methods in tabs, library context menu, cURL input mode, and more. All the user-friendliness of our terminal version is now wrapped up in a sleek graphical interface. The original. An open-source API testing client for open minds. Developers all around the world rely on HTTPie for API testing. Our users include the engineers behind some of the most important technology companies driving change today. We’re on a mission to make APIs simple and intuitive for all those building the tools, apps, and technologies of our time. We truly believe that APIs have the capacity to make our world a better place. Interact painlessly with APIs. Leverage the power of AI-assisted work. Organize your work in spaces, collections, and tabs. Parametrize requests with variables and environments. Work across devices with auto-save and realtime sync. Build and preview requests without sending them.

View Software

CodeSign Secure

Encryption Consulting LLC

Our platform guarantees unmatched security and high performance for all your cryptographic needs, ensuring the integrity and authenticity of your software. CodeSign Secure provides advanced insights, cloud-based HSM key management, and policy enforcement for robust practices. Experience seamless integration with Dev Ops CI/CD and streamlined workflows for hands-free code signing.

View Software

Apache Mahout

Apache Software Foundation

Apache Mahout is a powerful, scalable, and versatile machine learning library designed for distributed data processing. It offers a comprehensive set of algorithms for various tasks, including classification, clustering, recommendation, and pattern mining. Built on top of the Apache Hadoop ecosystem, Mahout leverages MapReduce and Spark to enable data processing on large-scale datasets. Apache Mahout(TM) is a distributed linear algebra framework and mathematically expressive Scala DSL designed to let mathematicians, statisticians, and data scientists quickly implement their own algorithms. Apache Spark is the recommended out-of-the-box distributed back-end or can be extended to other distributed backends. Matrix computations are a fundamental part of many scientific and engineering applications, including machine learning, computer vision, and data analysis. Apache Mahout is designed to handle large-scale data processing by leveraging the power of Hadoop and Spark.

View Software

Everyware Software Framework (ESF)

ESF Eurotech

Everyware Software Framework (ESF) is an enterprise-ready IoT framework distributed and supported by Eurotech. Based on Eclipse Kura, the open source Java/OSGi middleware for IoT gateways, ESF adds provisioning, advanced security, remote access, and diagnostics monitoring. It supports ready-to-use field protocols (including Modbus, OPC-UA, S7, FANUC, J1939, J1979, BACnet, IEC 60870-5-101, IEC 60870-5-104, DNP3, M-bus), MQTT connectivity, and a web-based visual data flow programming to acquire data from the field, process it at the edge, and publish it to IoT cloud platforms. ESF features full remote device management through its integration with Everyware Cloud, Eurotech’s IoT integration platform. Develop and manage IoT edge computing applications. Easily connect to IoT devices and cloud services using IoT industrial protocols. Visually compose data flows to manage, analyze, and route data.

View Software

µGFX

uGFX

µGFX is a lightweight embedded library for displays and touchscreens providing everything required to build a fully featured embedded GUI. The library is very small and fast because every unused feature is disabled and not linked into the finished binary. The µGFX library has been designed to be the smallest, fastest and most advanced embedded library for display and touchscreen solutions. The µGFX library works on any processor architecture. No matter whether it's a small 16-bit microcontroller or a huge 64-bit multi-core ARM CPU. The µGFX library runs on any system. It can be used with or without an underlying operating system. An easy-to-use, yet highly flexible abstraction layer allows to run the µGFX library on virtually any platform. The abstraction layer has been designed to have as little performance impact as possible.

View Software

Prolog

Prolog is a logic programming language associated with artificial intelligence and computational linguistics. Prolog has its roots in first-order logic, a formal logic, and unlike many other programming languages, Prolog is intended primarily as a declarative programming language, the program logic is expressed in terms of relations, represented as facts and rules. A computation is initiated by running a query over these relations. Prolog was one of the first logic programming languages and remains the most popular such language today, with several free and commercial implementations available. The language has been used for theorem proving, expert systems, term rewriting, type systems, and automated planning, as well as its original intended field of use, natural language processing. Modern Prolog environments support the creation of graphical user interfaces, as well as administrative and networked applications.

View Software

CI Fuzz

Code Intelligence

CI Fuzz ensures robust and secure code with test coverage up to 100%. Use CI Fuzz from the command line or in the IDE of choice to generate thousands of test cases automatically. CI Fuzz analyzes code as it runs, just like a unit test, but with AI support to efficiently cover all paths through the code. Uncover real bugs in real-time and say goodbye to theoretical issues and false positives. Find real issues with all the information needed to quickly reproduce and fix them. Test your code with maximum code coverage and automatically detect typical security-relevant bugs like injections and remote code executions automatically in one go. Get fully covered to deliver the highest quality software. Conduct real-time code analysis with CI Fuzz. Take unit tests to the next level. It employs AI for comprehensive code path coverage and the automatic generation of thousands of test cases. Maximize pipeline performance that doesn't compromise software integrity.

Starting Price: €30 per month

View Software

Defensics Fuzz Testing

Black Duck

Defensics Fuzz Testing is a comprehensive, versatile, automated black box fuzzer that enables organizations to efficiently and effectively discover and remediate security weaknesses in software. The generational fuzzer takes an intelligent, targeted approach to negative testing. Advanced file and protocol template fuzzers enable users to build their own test cases. The SDK allows expert users to use the Defensics framework to develop their own test cases. Defensics is a black box fuzzer, meaning it doesn’t require source code to run. With Defensics, users can secure their cyber supply chain to ensure the interoperability, robustness, quality, and security of software and devices before introducing them into IT or lab environments. Defensics fits nearly any development workflow, whether in a traditional SDL or CI environment. Its API and data export capabilities also enable it to integrate with surrounding technologies, making it a true plug-and-play fuzzer.

View Software

Laminas

Zend Framework

Laminas is the enterprise-ready PHP framework and components. Components for any PHP application, include dependency injection, event dispatchers, input validation and filtering, pagination and navigation, feed generation and parsing, and much, much more. Build PHP middleware applications, using the PSR-7 and PSR-15 specifications, using a variety of routing and templating options, and the dependency injection container you prefer. Build RESTful APIs using standards and provide validation, authentication, authorization, and versioning right out of the box. A proven history of success running business critical and high-usage applications, ready for PHP 7. Laminas is built with security best practices. Store passwords and encrypt with AES-256. Engineered with performance tuning in mind, Laminas runs up to 4x faster than version 2 releases. Laminas API tools provide JSON representations that can be parsed and used in any mobile framework.

View Software

DROPS

DROPS is a release management tool designed to simplify, secure, and centralize the deployment of applications across data centers, hybrid, and multi-cloud infrastructures. It supports a wide range of platforms, integrates seamlessly with various CI/CD pipelines, and offers both agent-based and agentless operations. With features like full-stack release management, automated infrastructure provisioning, and 24/7 availability, DROPS aims to streamline deployment processes and ensure consistent, reliable delivery. The tool is flexible enough to manage both legacy and modern applications, catering to diverse enterprise needs. Select agent-based or agentless operation. No need for agent installation and management. DROPS adapts to your configuration and if agents are needed, they are provisioned automatically. Plan and organize your application deployment from the web console with no scripting needed. Ease collaboration between stakeholders and technical teams.

View Software

TESSY

Razorcat

TESSY automates the whole unit test cycle including regression testing for your embedded software in C/C++ on different target systems. As an easy-to-install and easy-to-operate testing tool TESSY guides you through the unit test workflow from the project setup through the test design and execution to the result analysis and reporting. TESSY takes additional care of the complete test organization as well as the test management, including requirements, coverage measurement, and traceability. The TESSY test project management feature provides the possibility to define an individual test project structure based on collections and folders, to define environment variables, and to configure your desired compiler/debugger with the help of the integrated Test Environment Editor. The coverage results are displayed directly within the project structure and the test results are stored within test runs which allows for keeping former (successful) results for reporting.

View Software

Konfig

Konfig is a developer tool that automates the generation of SDKs, documentation, demos, and tutorials for REST APIs, facilitating seamless onboarding for external developers. By importing an OpenAPI Specification or Postman Collection, Konfig automatically produces SDKs in popular programming languages, including TypeScript, Python, Java, C#, PHP, Ruby, Go, Swift, and Dart. The platform ensures high-quality SDKs by identifying and rectifying errors in the OpenAPI Specification through its linter and writing test cases to prevent API updates from breaking existing SDKs. Konfig also generates branded, user-friendly documentation that auto-updates with any changes to the API specification, maintaining consistency between documentation and SDKs. Additionally, it allows for the creation of engaging demos and tutorials using familiar Markdown, enabling users to run code in-browser for hands-on learning.

View Software

jsoup

jsoup is a Java library that simplifies working with real-world HTML and XML. It offers an easy-to-use API for URL fetching, data parsing, extraction, and manipulation using DOM API methods, CSS, and XPath selectors. jsoup implements the WHATWG HTML5 specification and parses HTML to the same DOM as modern browsers. With jsoup, you can scrape and parse HTML from a URL, file, or string; find and extract data using DOM traversal or CSS selectors; manipulate HTML elements, attributes, and text; clean user-submitted content against a safelist to prevent XSS attacks; and output tidy HTML. jsoup is designed to deal with all varieties of HTML found in the wild, from pristine and validating to invalid tag-soup, creating a sensible parse tree. For example, you can fetch the Wikipedia homepage, parse it to a DOM, and select the headlines from the "In the news" section into a list of elements.

View Software

UNIGINE

UNIGINE is a real-time 3D engine designed for enterprise and technology enthusiasts, offering photorealistic graphics and support for large virtual worlds through C++ and C# APIs. The engine is built with open-world capabilities in mind, featuring unique terrain technology that enables extreme detail up to 1 mm per pixel, along with runtime modification and collaborative editing. It supports 64-bit precision per coordinate, allowing for scenes as expansive as the solar system. UNIGINE provides three SDK editions tailored to different needs, the Sim SDK for simulation and training with planet-scale scenarios and immersive display setups; the engineering SDK, which is embeddable into enterprise applications such as digital twins, BIM, and smart city projects, featuring advanced GIS and CAD data handling; and the Community SDK for technical enthusiasts developing games and VR applications.

View Software

HCL OneTest

HCL Technologies

HCL OneTest provides software testing tools to support a DevOps approach: API testing, functional testing, UI testing, performance testing and service virtualization. It helps you automate and run tests earlier and more frequently to discover errors sooner — when they are less costly to fix. HCL also provides a bundled offering under a new consumption model that changes the way you can use and deploy DevOps software. The new offering helps simplify your planning for adoption and growth of critical DevOps products. HCL OneTest UI enables testers to take automation all the way from mainframe terminals with 3270 interfaces, through .NET- and Java-based thick client applications. Additionally, it works with the latest top browsers, ERP systems such as SAP and Oracle, right up to HTML5-based responsive web applications that are built on modern frameworks like Angular, React and Vue.js.

View Software

Clair

Clair is an open-source project for the static analysis of vulnerabilities in application containers (currently including OCI and docker). Clients use the Clair API to index their container images and can then match it against known vulnerabilities. Our goal is to enable a more transparent view of the security of the container-based infrastructure. Thus, the project was named Clair after the French term which translates to clear, bright, and transparent. Manifests are Clair's representation of a container image. Clair leverages the fact that OCI Manifests and Layers are content-addressed to reduce duplicated work.

View Software

Lens Autopilot

Mirantis

Lens Autopilot is a DevOps as-a-Service offering that eliminates technology and operational complexity by providing teams with the necessary resources and tools to accelerate their application delivery process on top of Kubernetes. Lens Autopilot optimizes your operations with continuous proactive security and real-time monitoring and alerting, empowering your developers to focus on building and deploying valuable applications, not worrying about operational tasks. With Lens Autopilot, you work closely with a dedicated team of cloud native experts from Mirantis to transform your processes, optimize cost, and enhance security so you can accelerate your business outcomes.

View Software

Jestor

Create custom internal tools and automate workflows, no code. Do it yourself. Build scalable apps, automation, and workflows for your entire company.

1 Rating

Starting Price: $30

View Software

Best Application Development Software for Linux - Page 17

Compare the Top Application Development Software for Linux as of November 2025 - Page 17

Flux