Alternatives to VisualVM
Compare VisualVM alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to VisualVM in 2025. Compare features, ratings, user reviews, pricing, and more from VisualVM competitors and alternatives in order to make an informed decision for your business.
-
1
Scout Monitoring
Scout Monitoring
Scout Monitoring is Application Performance Monitoring (APM) that finds what you can't see in charts. Scout APM is application performance monitoring that streamlines troubleshooting by helping developers find and fix performance issues before customers ever see them. With real-time alerting, a developer-centric UI, and tracing logic that ties bottlenecks directly to source code, Scout APM helps you spend less time debugging and more time building a great product. Quickly identify, prioritize, and resolve performance problems – memory bloat, N+1 queries, slow database queries, and more – with an agent that instruments the dependencies you need at a fraction of the overhead. Scout APM is built for developers, by developers, and monitors Ruby, PHP, Python, Node.js, and Elixir applications. -
2
Orbit Profiler
Orbit Profiler
Quickly find performance bottlenecks and visualize what is going on in a complex C/C++ application. Orbit is a standalone profiler and debugging tool for Windows and Linux. Its main purpose is to help developers understand and visualize the execution flow of a complex application. By giving a bird’s eye view of what is happening under the hood, Orbit gives the developer a deeper understanding of complex systems and allows them to quickly find performance bottlenecks. Orbit works out of the box on any C/C++ application, as long as it has access to the Pdb file. Start profiling as soon as you finish downloading Orbit. Orbit injects itself into the target process and hooks into selected functions. It works even on your highly optimized final/shipping builds. Sampling is great when you don’t know where to start looking. Orbit’s sampling is fast, robust, and “always on”. Orbit combines sampling and dynamic instrumentation to optimize the profiling workflow. -
3
Arm DDT
Arm
Arm DDT is the number one server and HPC debugger in research, industry, and academia for software engineers and scientists developing C++, C, Fortran parallel and threaded applications on CPUs, GPUs, Intel, and Arm. Arm DDT is trusted as a powerful tool for the automatic detection of memory bugs and divergent behavior to achieve lightning-fast performance at all scales. Cross-platform for multiple servers and HPC architectures. Native parallel debugging of Python applications. Has market-leading memory debugging. Outstanding C++ debugging support. Complete Fortran debugging support. Has an offline mode for debugging non-interactively. Handles and visualizes huge data sets. Arm DDT is a powerful parallel debugger, available standalone or as part of the Arm Forge debug and profile suite. Its intuitive graphical interface provides automatic detection of memory bugs and divergent behavior at all scales. -
4
Seagence
Seagence Technologies
Using Seagence’s unique execution path technology combined with machine learning, receive realtime alerts with root cause when defects occur in your production Java applications. Fix your code without needing any debugging. Attach a lightweight runtime java agent when you start your application. As your users access the application, Seagence agent collects data about how requests are being processed. So give Seagence 24 hours to collect enough sample for analysis. The collected data is fed to Seagence's analytics engine in realtime which finds defects when they occur and alerts. Know that Seagence unearths all defects in your application including unknown. With Seagence provided defect and root cause in hand, you fix your broken code. Continuously monitoring your production application, Seagence proactively finds defects and their root cause in realtime thus eliminating the need for debugging.Starting Price: $52 per month -
5
TotalView
Perforce
TotalView debugging software provides the specialized tools you need to quickly debug, analyze, and scale high-performance computing (HPC) applications. This includes highly dynamic, parallel, and multicore applications that run on diverse hardware — from desktops to supercomputers. Improve HPC development efficiency, code quality, and time-to-market with TotalView’s powerful tools for faster fault isolation, improved memory optimization, and dynamic visualization. Simultaneously debug thousands of threads and processes. Purpose-built for multicore and parallel computing, TotalView delivers a set of tools providing unprecedented control over processes and thread execution, along with deep visibility into program states and data. -
6
Xdebug
Xdebug
Xdebug is an extension for PHP, and provides a range of features to improve the PHP development experience. A way to step through your code in your IDE or editor while the script is executing. An improved var_dump() function, stack traces for notices, warnings, errors, and exceptions to highlight the code path to the error. Writes every function call, with arguments and invocation location to disk. Optionally also includes every variable assignment and return value for each function. Allows you, with the help of visualization tools, to analyze the performance of your PHP application and find bottlenecks. Shows which parts of your code base are executed when running unit tests with PHPUnit. Installing Xdebug with a package manager is often the fastest way. You can substitute the PHP version with the one that matches the PHP version that you are running. You can install Xdebug through PECL on Linux & macOS with Homebrew.Starting Price: Free -
7
SmartBear AQTime Pro
SmartBear
Debugging should be simple. AQTime Pro synthesizes complex memory and performance information into digestible, actionable insights so you can quickly find bugs and their root cause. Finding and squashing highly differentiated bugs is tedious and complicated, but AQTime Pro makes it easy. With over a dozen profilers, you can find memory leaks, performance bottlenecks, code coverage gaps and more in just a few clicks. AQTime Pro enables you to squash all bugs with one tool and get back to making high quality code. Don’t let code profilers box you in with a single codebase or framework and prevent you from finding performance bottlenecks, memory leaks, code coverage gaps unique to your project. AQTime Pro is the one tool to use across multiple codebases and frameworks in a project. It has broad language support for C/C++, Delphi, .NET, Java and more.Starting Price: $719 one-time payment -
8
Deleaker
Softanics
Deleaker 🛠️ is a powerful memory leak detection tool for C++, .NET, and Delphi developers. It seamlessly integrates with Visual Studio, RAD Studio, and works as a standalone app. Deleaker helps identify and fix memory leaks, GDI leaks, and handle leaks 🔍 in real time. With an intuitive UI, detailed reports, and precise stack traces, it makes debugging easier ⚡. Whether you're working on a large project or a small app, Deleaker ensures your software stays efficient and leak-free 🚀.Starting Price: $149 -
9
Arm Forge
Arm
Build reliable and optimized code for the right results on multiple Server and HPC architectures, from the latest compilers and C++ standards to Intel, 64-bit Arm, AMD, OpenPOWER, and Nvidia GPU hardware. Arm Forge combines Arm DDT, the leading debugger for time-saving high-performance application debugging, Arm MAP, the trusted performance profiler for invaluable optimization advice across native and Python HPC codes, and Arm Performance Reports for advanced reporting capabilities. Arm DDT and Arm MAP are also available as standalone products. Efficient application development for Linux Server and HPC with Full technical support from Arm experts. Arm DDT is the debugger of choice for developing of C++, C, or Fortran parallel, and threaded applications on CPUs, and GPUs. Its powerful intuitive graphical interface helps you easily detect memory bugs and divergent behavior at all scales, making Arm DDT the number one debugger in research, industry, and academia. -
10
Amazon SageMaker Debugger
Amazon
Optimize ML models by capturing training metrics in real-time and sending alerts when anomalies are detected. Automatically stop training processes when the desired accuracy is achieved to reduce the time and cost of training ML models. Automatically profile and monitor system resource utilization and send alerts when resource bottlenecks are identified to continuously improve resource utilization. Amazon SageMaker Debugger can reduce troubleshooting during training from days to minutes by automatically detecting and alerting you to remediate common training errors such as gradient values becoming too large or too small. Alerts can be viewed in Amazon SageMaker Studio or configured through Amazon CloudWatch. Additionally, the SageMaker Debugger SDK enables you to automatically detect new classes of model-specific errors such as data sampling, hyperparameter values, and out-of-bound values. -
11
Defang
Defang
Defang is a developer-centric platform that simplifies the process of developing, deploying, and debugging cloud applications. By leveraging AI-assisted tooling, Defang enables developers to swiftly transition from an idea to a deployed application on their preferred cloud provider. The platform supports multiple programming languages, including Go, JavaScript, and Python, allowing developers to start with sample projects or generate project outlines using natural language prompts. With a single command, Defang builds and deploys applications, handling configurations for computing, storage, load balancing, networking, logging, and security. The Defang Command Line Interface (CLI) facilitates interactions with the platform, offering installation options via shell scripts, Homebrew, Winget, Nix, or direct download. Developers can define services using compose.yaml files, which Defang utilizes to deploy applications to the cloud.Starting Price: $10 per month -
12
Polar Signals
Polar Signals
Polar Signals cloud is an always-on, zero-instrumentation continuous profiling product that helps improve performance, understand incidents, and lower infrastructure costs. With just one command and the easiest onboarding guide you’ll ever see, you can start saving costs and optimizing performance in your infrastructure. Travel back in time to pinpoint incidents and issues. Profiling data provides unique insight and depth into what a process executed over time. Utilize profiling data collected over time to confidently and statistically identify hot paths for optimization. Many organizations have 20-30% of resources wasted with code paths that could be easily optimized. Polar Signals Cloud employs an exceptional blend of technologies, purpose-built to deliver the profiling toolset essential for today's evolving infrastructure and applications. With a zero instrumentation setup, deploy immediately and reap the benefits of actionable observability data.Starting Price: $50 per month -
13
Liquid XML Data Binder
Liquid Technologies Ltd
Liquid XML Data Binder enables you to load XML Documents into a strongly typed object model within your C#, C++, Java, Visual Basic .Net or VB6 (COM) source code. Meaning fewer coding errors, reduced development and testing time, and an increase in schema conformance and coding reliability. Liquid XML Data Binder Features: - Generates an easy to use class library for C++, C#, Java, Visual Basic .Net, and VB 6 (COM) from an XML Schema. - Generated HTML documentation for your class library API. - Supports Smart Device platforms Android and iOS. - Supports W3C XML Schema (XSD), XDR and DTD standards. - Supports generating WCF Web Services from WSDL. - Supports JSON serialization. - Supports Fast Infoset binary XML serialization. - Support for the most complex XML standards. - Royalty free distribution of compiled code and runtime. -
14
CodeRush
DevExpress
Try your first CodeRush feature right now and see instantly just how powerful it is. Refactoring for C#, Visual Basic, and XAML, with the fastest test .NET runner available, next generation debugging, and the most efficient coding experience on the planet. Quickly find symbols and files in your solution and easily navigate to code constructions related to the current context. CodeRush includes the Quick Navigation and Quick File Navigation features, which make it fast and easy to find symbols and open files. Using the Analyze Code Coverage feature, you can discover what parts of your solution are covered by unit tests, and find the at-risk parts of your application. The Code Coverage window shows percentage of statements covered by unit tests for each namespace, type, and member in your solution.Starting Price: $49.99 one time payment -
15
DebuggAI
DebuggAI
DebuggAI is an AI-powered debugging platform designed to streamline the process of identifying and resolving code issues through intelligent automation. It offers features such as text-based test requests, secure local tunneling for testing on localhost servers, and visual test reports with GIF recordings to enhance the debugging experience. The platform supports various technologies, including Node.js, Next.js, React, TypeScript, JavaScript, Python, Django, and Vite, making it versatile for different development environments. DebuggAI aims to reduce the complexity of end-to-end testing by allowing developers to generate and run tests using simple English commands, thereby improving efficiency and confidence in the development workflow.Starting Price: $20 per month -
16
ReSharper
JetBrains
The Visual Studio Extension for .NET Developers. On-the-fly code quality analysis is available in C#, VB.NET, XAML, ASP.NET, ASP.NET MVC, JavaScript, TypeScript, CSS, HTML, and XML. You'll know right away if your code needs to be improved. Not only does ReSharper warn you when there's a problem in your code but it provides hundreds of quick-fixes to solve problems automatically. In almost every case, you can select the best quick-fix from a variety of options. Automated solution-wide code refactorings help you safely change your code base. Whether you need to revitalize legacy code or put your project structure in order, you can rely on ReSharper. You can instantly navigate and search through the whole solution. Jump to any file, type, or type member, or navigate from a specific symbol to its usages, base and derived symbols, or implementations.Starting Price: $12.90 per user per month -
17
jQuery
jQuery
jQuery is a fast, small, and feature-rich JavaScript library. It makes things like HTML document traversal and manipulation, event handling, animation, and Ajax much simpler with an easy-to-use API that works across a multitude of browsers. If you're new to jQuery. Return a collection of matched elements either found in the DOM based on passed argument(s) or created by passing an HTML string. All the aspects of the API that were deprecated in the corresponding version of jQuery. These methods get and set DOM attributes of elements.Starting Price: Free -
18
Stetho
Meta
Stetho is a sophisticated debug bridge for Android applications. When enabled, developers have access to the Chrome Developer Tools feature natively part of the Chrome desktop browser. Developers can also choose to enable the optional dumpapp tool which offers a powerful command-line interface to application internals. Alternatively, you can include Stetho from Maven Central via Gradle or Maven. Only the main Stetho dependency is strictly required, however you may also wish to use one of the network helpers. The integration with the Chrome DevTools frontend is implemented using a client/server protocol which the Stetho software provides for your application. Network inspection is possible with the full spectrum of Chrome Developer Tools features, including image preview, JSON response helpers, and even exporting traces to the HAR format. SQLite databases can be visualized and interactively explored with full read/write capabilities. -
19
Coverlet
Coverlet
It works with .NET Framework on Windows and .NET Core on all supported platforms. Coverlet supports coverage for deterministic builds. The solution at the moment is not optimal and need a workaround. If you want to visualize coverlet output inside Visual Studio while you code, you can use the following addins depending on your platform. Coverlet also integrates with the build system to run code coverage after tests. Enabling code coverage is as simple as setting the CollectCoverage property to true. The coverlet tool is invoked by specifying the path to the assembly that contains the unit tests. You also need to specify the test runner and the arguments to pass to the test runner using the --target and --targetargs options respectively. The invocation of the test runner with the supplied arguments must not involve a recompilation of the unit test assembly or no coverage result will be generated.Starting Price: Free -
20
HeapHero
Tier1app
Due to inefficient programming, modern applications waste 30% to 70% of memory. HeapHero is the industry's first tool to detect the amount of wasted memory. It reports what lines of source code originating the memory wastage and solutions to fix them. A Memory leak is a type of resource drain that occurs when an application allocates memory and does not release after finish using it. This allocated memory can not be used for any other purpose and it remains wasted. As a consequence, Java applications will exhibit one or more of these non-desirable behaviors: poor response time, long JVM pauses, application hang, or even crash. Android mobile applications can also suffer from memory leaks, which can be attributed to poor programming practices. Memory leaks in mobile apps bare direct consumer impact and dissatisfaction. Memory leak slows down the application's responsiveness, makes it hang or crashes the application entirely. It will leave an unpleasant and negative user experience. -
21
SourceDebug
SourceDebug
SourceDebug is a fast powerful project-oriented programming editor, code browser, and debugger that helps you understand code while you work and plan. SourceDebug has built-in dynamic analysis for C/C++, Objective-C, and more. SourceDebug can debug application with source code in different locations. SourceDebug integrates editing, browsing, compiling and debugging functions for local and remote projects. It can be used to learn an existing code base quickly, and get up to speed on new projects. SourceDebug parses your whole project and lets you navigate and edit code like a breeze. It can jump easily to variables, functions or include files. Smart Bookmark can record the browsing location and play back when needed. Supports GDB or LLDB-MI debug over SSH, ADB, Telnet , Rlogin and Local Cygwin. GDB server debug is also supported. Show Quickwatch, Watches, Callstack, Variables, Memory, Breakpoint List, Disassemble and Thread List as needed. Sftp, Ftp and Local drives are supported.Starting Price: $49/user -
22
Squish
Qt Group
Squish GUI Tester automates testing of graphical user interfaces across platforms and technologies such as Qt, Java, Web, .NET/WPF, iOS, Android, and embedded systems. Test scripts can be written in Python, JavaScript, Perl, Tcl, or Ruby, and its object-based recognition ensures tests remain reliable even as UIs change. With features like record/replay, keyword-driven and data-driven testing, test suite management, and CI/CD integration, Squish helps teams reduce manual testing, accelerate testing cycles, and ensure consistent performance, usability, and reliability. It is ideal for teams building enterprise-scale or safety-critical applications requiring high-quality, maintainable GUI testing workflows. -
23
gProfiler
Granulate
gProfiler combines multiple sampling profilers to produce unified visualization of what your CPU is spending time on, displaying stack traces of your processes across native programs (includes Golang), Java and Python runtimes. gProfiler can upload its results to the Granulate Performance Studio, which aggregates the results from different instances over different periods of time and can give you a holistic view of what is happening on your entire cluster. To upload results, you will have to register and generate a token on the website. -
24
Thundra
Thundra
Thundra is a developer platform company that empowers application teams to develop, debug, test, and monitor modern microservices on the cloud. By offering everything from automated instrumentation to cloud debugging and test optimization in a single platform, Thundra eliminates the need for multiple tools for pre-production and production environmentsStarting Price: $90 per month -
25
Fiddler
Progress Software
Capture all HTTP(S) traffic between your computer and the Internet with Telerik Fiddler HTTP(S) proxy. Inspect traffic, set breakpoints, and fiddle with requests & responses. Fiddler Everywhere is a web debugging proxy for macOS, Windows, and Linux. Capture, inspect, monitor all HTTP(S) traffic between your computer and the Internet, mock requests, and diagnose network issues. Fiddler Everywhere can be used for any browser, application, process. Debug traffic from macOS, Windows, or Linux systems and iOS or Android mobile devices. Ensure the proper cookies, headers, and cache directives are transferred between the client and server. Supports any framework, including .NET, Java, Ruby, etc. Mock or modify requests and responses on any website. It’s a quick and easy way to change the request and responses to test websites without changing code. Use Fiddler Everywhere to log all HTTP/S traffic between your computer and the Internet.Starting Price: $12 per user per month -
26
Plumbr
Plumbr
Expose metrics and set up alerts for ops. Detect and prioritize root causes for dev. Complete the devops feedback loop. Configure your application to send traces using Plumbr Agents. Capture end-to-end traces from user interaction throughout the microservices in the back-end. No code changes, no sampling, pure joy! Plumbr APM uses tracing to provide insights into your application’s performance. Plumbr has deep expertise in APM technology including Java profiling, byte code instrumentation (BCI), database monitoring and real user monitoring. Plumbr will help us equip customers with the power of Java Profiling and BCI, which is critical for deep visibility into traditional Java and .Net enterprise applications.Starting Price: $84 per month -
27
Chrome DevTools
Google
Chrome DevTools is a set of web developer tools built directly into the Google Chrome browser. DevTools can help you edit pages on-the-fly and diagnose problems quickly, which ultimately helps you build better websites, faster. There are many ways to open DevTools, because different users want quick access to different parts of the DevTools UI. When you want to work with the DOM or CSS, right-click an element on the page and select Inspect to jump into the Elements panel. Or press Command+Option+C (Mac) or Control+Shift+C (Windows, Linux, Chrome OS). When you want to see logged messages or run JavaScript, press Command+Option+J (Mac) or Control+Shift+J (Windows, Linux, Chrome OS) to jump straight into the Console panel. Toggle various overlays and speed up DOM tree navigation with badges. The main uses of the Chrome DevTools Console are logging messages and running JavaScript.Starting Price: Free -
28
Bugsnag
Bugsnag
Bugsnag monitors application stability so you can make data-driven decisions on whether you should be building new features, or fixing bugs. We are a full stack stability monitoring solution with best-in-class functionality for mobile applications. Rich, end-to-end diagnostics to help you reproduce every error. A simple and thoughtful user experience for all your apps in one dashboard. The definitive metric for app health — the common language for product and engineering teams. Not all bugs are worth fixing. Focus on the ones that matter to your business. Extensible libraries with opinionated defaults and countless customization options. Subject matter experts who care deeply about error reduction and the health of your apps.Starting Price: $59 per month -
29
PlatformIO
PlatformIO
Professional collaborative platform for embedded development. PlatformIO is a next-generation, collaborative platform for embedded development that enables customers to save resources and time by vastly reducing the expenses and labor associated with creating and maintaining product software. We believe the embedded systems industry desperately needs reinvention. Not only are the IDEs and tools built with technology from the 1990s, but they involve many complex requirements and platform-dependent configurations that turn away talented developers from becoming embedded engineers. The most loved IDE solution for Microsoft Visual Studio Code. A user-friendly and extensible integrated development environment with a set of professional development instruments, providing modern and powerful features to speed up yet simplify the creation and delivery of embedded products. PlatformIO is written in pure Python and doesn't depend on any additional libraries/tools from an operation system. -
30
weinre
Apache Software Foundation
weinre is WEb INspector REmote. Pronounced like the word "winery". Or maybe like the word "weiner". weinre is a debugger for web pages, like FireBug (for Firefox) and web inspector (for WebKit-based browsers), except it's designed to work remotely, and in particular, to allow you to debug web pages on a mobile device such as a phone. weinre was built in an age when there were no remote debuggers available for mobile devices. Since then, some platforms are starting to provide remote debugger capabilities, as part of their platform toolset. weinre reuses the user interface code from the web inspector project at WebKit, so if you've used Safari's web inspector or Chrome's Developer Tools, weinre will be very familiar. In normal usage, you will be running the client application in a browser on your desktop/laptop, and running a target web page on your mobile device. weinre does not make use of any 'native' code in the browser, it's all plain old boring JavaScript. -
31
Starlette
Starlette
Starlette includes an application class Starlette that nicely ties together all of its other functionality. A list of middleware to run for every request. A starlette application will always automatically include two middleware classes. ServerErrorMiddleware is added as the very outermost middleware, to handle any uncaught errors occurring anywhere in the entire stack. ExceptionMiddleware is added as the very innermost middleware, to deal with handled exception cases occurring in the routing or endpoints. Startup handler callables do not take any arguments and may be either standard functions or async functions. Shutdown handler callables do not take any arguments and may be either standard functions or async functions. -
32
HTTP Toolkit
HTTP Toolkit
Skim through traffic with highlighting by content type, status & source, or use powerful filtering tools to precisely match the messages that matter to you. Examine the URL, status, headers & body of each request or response, with inline explanations & docs from MDN. Dig into message bodies with highlighting & auto formatting for JSON, HTML, JS, hex and others, all using the power of Monaco, the editor from Visual Studio Code. Precisely match requests, jump to them when they appear, and edit anything: the target URL, method, headers or body. Manually respond directly to requests as they arrive, or pass them upstream, and pause & edit the real response on the way back. Step through HTTP traffic request by request, or manually mock endpoints and errors. Create rules to match requests and respond with your own content, to quickly prototype against new endpoints or services.Starting Price: Free -
33
Spark Inspector
Spark Inspector
With a three-dimensional view of your app's interface and the ability to change view properties at runtime, Spark can help you craft the best apps on earth. Wiring your app together with notifications? Spark's notification monitor shows you each NSNotification as it's sent, complete with a stack trace, a list of recipients and invoked methods, and more. Understand app structure at a glance and debug smarter. Connect your app to the Spark Inspector, and you'll see your app's interface front and center. As you interact with your app, the inspector updates in real-time! We monitor every change to your app's view hierarchy so you can always see what's going on. The view of your app you see in Spark isn't just beautiful, it's completely editable. You can modify almost every property of your views, from their class-level attributes to their CALayer transforms. When you make a modification, Spark invokes a method call within your app to directly modify that property.Starting Price: $49.99 one-time payment -
34
AWS X-Ray
Amazon
AWS X-Ray helps developers analyze and debug production, distributed applications, such as those built using a microservices architecture. With X-Ray, you can understand how your application and its underlying services are performing to identify and troubleshoot the root cause of performance issues and errors. X-Ray provides an end-to-end view of requests as they travel through your application, and shows a map of your application’s underlying components. You can use X-Ray to analyze both applications in development and in production, from simple three-tier applications to complex microservices applications consisting of thousands of services. -
35
Jazzer
Code Intelligence
Jazzer is a coverage-guided, in-process fuzzer for the JVM platform developed by Code Intelligence. It is based on libFuzzer and brings many of its instrumentation-powered mutation features to the JVM. You can use Docker to try out Jazzer's autofuzz mode, which automatically generates arguments to a given Java function and reports unexpected exceptions and detected security issues. You can also use GitHub release archives to run a standalone Jazzer binary that starts its own JVM configured for fuzzing.Starting Price: Free -
36
Arm MAP
Arm
No need to change your code or the way you build it. Profiling for applications running on more than one server and multiple processes. Clear views of bottlenecks in I/O, in computing, in a thread, or in multi-process activity. Deep insight into actual processor instruction types that affect your performance. View memory usage over time to discover high watermarks and changes across the complete memory footprint. Arm MAP is a unique scalable low-overhead profiler, available standalone or as part of the Arm Forge debug and profile suite. It helps server and HPC code developers to accelerate their software by revealing the causes of slow performance. It is used from multicore Linux workstations through to supercomputers. You can profile realistic test cases that you care most about with typically under 5% runtime overhead. The interactive user interface is clear and intuitive, designed for developers and computational scientists. -
37
SwapCode AI
SwapCode AI
SwapCode AI is a special helper that makes it easy to change one kind of code into another. Imagine if you were playing with blocks, and you wanted to turn a square block into a round one—it does that for code! It helps developers and teams make their code work in new ways without breaking anything. It works with lots of different types of code, like the ones used to make websites, games, and apps. For example, if you have a puzzle piece that fits in a Java puzzle but needs to fit in a Python puzzle, SwapCode AI knows how to reshape it perfectly! It even makes sure the new piece is easy to read and use. SwapCode AI is super smart and fits right into your tools, so you can use it while you’re working without any extra steps. It helps teams work together, even if they’re using different tools or languages.Starting Price: $20/month -
38
Kotzilla
Kotzilla
Visualize and resolve thread performance issues, memory leaks, and structural app issues, during development or in production. Koin’s container captures only essential app behavior data, ensuring minimal overhead. Understand and debug the lifecycle of component instances and scopes, their loading times, and execution among different threads. This ensures proper management and resource allocation while identifying and preventing errors such as memory leaks, performance issues, and ANRs. Analyze dependencies to understand relationships between different components. Optimize the dependency injection process, simplifying development and debugging efforts. This proactive analysis ensures reliability and scalability by detecting and addressing potential issues early. Gain granular traceability of components and lifecycles with Kotzilla’s dedicated API. Visualize identified issues and application crashes to get comprehensive insights into your app’s performance and stability.Starting Price: $49 per month -
39
dotMemory
JetBrains
dotMemory is a .NET memory profiler that can be launched right from Visual Studio, used as a plugin in JetBrains Rider, or used as a standalone tool. dotMemory lets you profile applications based on any supported version of .NET Framework, .NET Core, .NET, ASP.NET web applications, IIS, IIS Express, Windows services, Universal Windows Platform applications, and more. On macOS and Linux, dotMemory can be used only as part of JetBrains Rider or as a command-line profiler. dotMemory lets you import raw Windows memory dumps obtained using the task manager or process explorer, and analyze them as regular memory snapshots. By doing so, you can take advantage of automatic inspections, retention diagrams, and other sophisticated dotMemory features. Understanding of how memory is retained in your application is essential in order to successfully optimize it. In this view, the hierarchy of dominators (objects that exclusively retain other objects in memory) is shown on a sunburst chart.Starting Price: $469 per year -
40
Visual Basic
Microsoft
Visual Basic is an object-oriented programming language developed by Microsoft. Using Visual Basic makes it fast and easy to create type-safe .NET apps. Visual Basic focuses on supplying more of the features of the Visual Basic Runtime (microsoft.visualbasic.dll) to .NET Core and is the first version of Visual Basic focused on .NET Core. Many portions of the Visual Basic Runtime depend on WinForms and these will be added in a later version of Visual Basic. .NET is a free, open-source development platform for building many kinds of apps. With .NET, your code and project files look and feel the same no matter which type of app you're building. You have access to the same runtime, API, and language capabilities with each app. A Visual Basic program is built up from standard building blocks. A solution comprises one or more projects. A project in turn can contain one or more assemblies. Each assembly is compiled from one or more source files.Starting Price: Free -
41
Honeycomb
Honeycomb.io
Log management. Upgraded. With Honeycomb. Honeycomb is built for modern dev teams to better understand application performance, debug & improve log management. With rapid query, find unknown unknowns across system logs, metrics & traces with interactive charts for the deepest view against raw, high cardinality data. Configure Service Level Objective (SLOs) on what users care about so you cut-down noisy alerts and prioritize the work. Reduce on-call toil, ship code faster and keep customers happy. Pinpoint the cause. Optimize your code. See your prod in hi-res. Our SLOs tell you when your customers are having a bad experience so that you can immediately debug why those issues are happening, all within the same interface. Use our Query Builder to easily slice and dice your data to visualize behavioral patterns for individual users and services (grouped by any dimensions).Starting Price: $70 per month -
42
Kaption
Kaption.co
Kaption is the leading AI-first analytics and feedback tool for digital marketers. Get the insights you need to optimize your digital experience and move business forward. Eliminate guess work, know why it happens, and iterate a lot faster. Often the best way to persuade is to first see things through your customers eyes. Do you know how they are using your website? With Kaption you can visualize your user's journey and any bumps along the way. Excellence comes from good information. Without data you are either lucky, or wrong. Focus your efforts with conversion and monitoring tools. Free heatmap analytics to view your user engagement with each element on your site and how it affects their behavior. See where users get stuck, increase conversion rates, and debug your product faster with smart metadata.Starting Price: $25 per month -
43
Canonical Landscape
Canonical
Landscape is the most cost-effective way to support and monitor large and growing networks of desktops, servers and clouds. Reduce your team's efforts required for basic, day-to-day management. Manage desktop, server and cloud deployments. Up to 40,000 machines with a single instance. Create custom profiles for managing different machine classes. Easily install, update and remove software. Define policies for automated updates and security patches. List all processes running on a machine and remotely kill rogue processes. Graph trends of temperature, disk, memory usage and system load. Build your own graphs with custom metrics. Regulatory compliance is significantly simplified with custom reporting. Automated audit logging and compliance reporting. Quickly track full software package information for all registered machines. -
44
Realm
Realm DB
Realm is a mobile-first, open source object database designed to run directly inside phones, tablets, and wearables. It provides a simple, object-oriented data model that eliminates the need for an ORM, allowing developers to define models as regular classes in languages like Swift, Java, Kotlin, C#, JavaScript, Dart, and C++. Realm's architecture ensures high performance and low memory usage by employing a zero-copy design, lazy loading, and multi-version concurrency control (MVCC) for thread-safe operations. It's live objects and collections automatically update across threads, enabling reactive programming patterns. Realm supports relationships between objects via links and backlinks, facilitating complex data structures. Developers can utilize tools like Realm Studio to inspect and manipulate local Realm databases and integrate Realm into various platforms, including React Native, Flutter, Xamarin, and Node.js.Starting Price: Free -
45
MockK
MockK
Mocking is a technique to make testing code readable and maintainable. In three consequent articles, I would like to show the basics, features, and quirks of the MockK library. It is a new open-source library (github repository) focused on making mocking in Kotlin great. Injection first tries to match properties by name, then by class or superclass. Check the lookupType parameter for customization. Properties are injected even if private is applied. Constructors for injection are selected from the biggest number of arguments to lowest.Starting Price: Free -
46
Sentry
Sentry
From error tracking to performance monitoring, developers can see what actually matters, solve quicker, and learn continuously about their applications - from the frontend to the backend. With Sentry’s performance monitoring you can trace performance issues to poor-performing api calls and slow database queries. Source code, error filters, stack locals — Sentry enhances application performance monitoring with stack traces. Quickly identify performance issues before they become downtime. View the entire end-to-end distributed trace to see the exact, poor-performing API call and surface any related errors. Breadcrumbs make application development a little easier by showing you the trails of events that lead to the error(s).Starting Price: $26 per month -
47
Rust
Rust
Rust is blazingly fast and memory-efficient: with no runtime or garbage collector, it can power performance-critical services, run on embedded devices, and easily integrate with other languages. Rust’s rich type system and ownership model guarantee memory-safety and thread-safety — enabling you to eliminate many classes of bugs at compile-time. Rust has great documentation, a friendly compiler with useful error messages, and top-notch tooling — an integrated package manager and build tool, smart multi-editor support with auto-completion and type inspections, an auto-formatter, and more. Whip up a CLI tool quickly with Rust’s robust ecosystem. Rust helps you maintain your app with confidence and distribute it with ease. Use Rust to supercharge your JavaScript, one module at a time. Publish to npm, bundle with webpack, and you’re off to the races.Starting Price: Free -
48
EasyQA
ThinkMobiles
In order to start catch crashes which can appear in you Android or iOS applications, you need to integrate EasyQA Software Development Kit with the code of your apps. To download SDK and find full instructions on connecting it to a project, you can open the Integrations page within your project in EasyQA Test Management Tool. When you connect the SDK to your project, use the generated token and initialize it in the application class of your project. After that you can create your app’s build and upload it in Test Objects within your project in EasyQA and your application starts to send crashes to the service. After you have added our EasyQA SDK into your project and uploaded it to Test Objects within your project in EasyQA, you can track your app’s crashes on our website. You just need to download the app to any Android or iOS device and start testing. When there is a crash, reboot the app and press Upload button.Starting Price: $10 per user per month -
49
Firefox Developer Tools
Mozilla
Firefox Developer Tools is a set of web developer tools built into Firefox. You can use them to examine, edit, and debug HTML, CSS, and JavaScript. This section contains detailed guides to all of the tools as well as information on how to debug Firefox for Android, how to extend DevTools, and how to debug the browser as a whole. You can open the Firefox Developer Tools from the menu by selecting Tools > Web Developer > Web Developer Tools or use the keyboard shortcut Ctrl + Shift + I or F12 on Windows and Linux, or Cmd + Opt + I on macOS.Starting Price: Free -
50
Backtrace
Backtrace
Don’t let app, device, or game crashes get in the way of a great experience. Backtrace takes all the manual labor out of cross-platform crash and exception management so you can focus on shipping. Cross-platform callstack and event aggregation and monitoring. Process errors from panics, core dumps, minidumps, and during runtime across your stack with a single system. Backtrace generates structured, searchable error reports from your data. Automated analysis cuts down on time to resolution by surfacing important signals that lead engineers to crash root cause. Never worry about missing a clue with rich integrations into dashboards, notification, and workflow systems. Answer the questions that matter to you with Backtrace’s rich query engine. View a high-level overview of error frequency, prioritization, and trends across all your projects. Search through key data points and your own custom data across all your errors.
