Alternatives to Kestrel
Compare Kestrel alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to Kestrel in 2026. Compare features, ratings, user reviews, pricing, and more from Kestrel competitors and alternatives in order to make an informed decision for your business.
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1
LiteSpeed Web Server
LiteSpeed Technologies
Our lightweight Apache alternative conserves resources without sacrificing performance, security, compatibility, or convenience. Double the maximum capacity of your current Apache servers with LiteSpeed Web Server's streamlined event-driven architecture, capable of handling thousands of concurrent clients with minimal memory consumption and CPU usage. Protect your servers with already familiar ModSecurity rules while also taking advantage of a host of built-in anti-DDoS features, such as bandwidth and connection throttling. Conserve capital by reducing the number of servers needed to support your growing hosting business or online application. Reduce complexity by eliminating the need for an HTTPS reverse proxy or additional 3rd party caching layers. LiteSpeed Web Server is compatible with all popular Apache features including its Rewrite Engine and ModSecurity, and can load Apache configuration files directly. -
2
AIOHTTP
AIOHTTP
Supports both client and server side of HTTP protocol, both client and server web-sockets out-of-the-box, and avoids callback hell and web-server with middlewares and pluggable routing. -
3
Cowboy
99s
Cowboy is the ultimate server for the modern Web with support for Websocket, HTTP/2 and REST. Cowboy is a small, fast and modern HTTP server for Erlang/OTP. Cowboy aims to provide a complete modern Web stack. This includes HTTP/1.1, HTTP/2, WebSocket, server-sent events and Webmachine-based REST. Cowboy comes with functions for introspection and tracing, enabling developers to know precisely what is happening at any time. Its modular design also easily enables developers to add instrumentation. Cowboy is a high-quality project. It has a small code base, is very efficient (both in latency and memory use) and can easily be embedded in another application. Cowboy is clean Erlang code. It includes hundreds of tests and its code is fully compliant with the Dialyzer. It is also well documented and features a function reference, a user guide and numerous tutorials. Knowledge of the HTTP protocol is recommended but not required, as it will be detailed throughout the guide. -
4
Abyss Web Server
Aprelium
Abyss Web Server is a compact web server available for Windows, macOS, and Linux operating systems. Despite its small footprint, it supports HTTP/2, secure SSL/TLS connections (HTTPS), automated provisioning and renewal of free certificates from Let's Encrypt® (ACME v2), IPv6, on-the-fly HTTP compression, dynamic content generation through CGI/FastCGI scripts, ISAPI extensions, native ASP.NET, HTTP/HTTPS/WebSocket reverse proxying, eXtended Side Includes (XSSI), custom error pages, password protection, IP address control, anti-leeching, bandwidth throttling, and log rotation. It also features an automatic antihacking system as well as a multilingual remote web management interface that makes its configuration as easy as browsing a web site.Starting Price: $59.95 one-time payment -
5
Socket.IO
Socket.IO
In most cases, the connection will be established with WebSocket, providing a low-overhead communication channel between the server and the client. Rest assured! In case the WebSocket connection is not possible, it will fall back to HTTP long-polling. And if the connection is lost, the client will automatically try to reconnect. Scale to multiple servers and send events to all connected clients with ease. Socket.IO is a library that enables low-latency, bidirectional and event-based communication between a client and a server. It is built on top of the WebSocket protocol and provides additional guarantees like a fallback to HTTP long-polling or automatic reconnection. WebSocket is a communication protocol that provides a full-duplex and low-latency channel between the server and the browser. There are several Socket.IO server implementations available. And client implementations in most major languages. -
6
Mako Server
Real Time Logic LLC
The Mako Server is a compact, event-driven web and application server designed for resource-constrained systems. Engineered for embedded environments, it combines a lightweight HTTP/HTTPS server with a Lua scripting engine, enabling high-level development with direct access to low-level C code. Its architecture delivers high performance, low memory use, and secure integration, making it ideal for systems that can’t support heavier frameworks but require dynamic web interfaces or APIs. The server supports live updates, built-in debugging, and Lua Server Pages (LSP), offering PHP-like scripting optimized for embedded use. Common use cases include device portals, diagnostic dashboards, REST APIs, and real-time WebSocket interfaces. Lua’s speed and small footprint align perfectly with the Mako Server’s goals. More than just a web server, Mako is a comprehensive framework that enables developers to integrate modern, secure, web-enabled features into compact devices.Starting Price: $498.00 -
7
Eclipse Jetty
Eclipse Foundation
Jetty provides a web server and servlet container, additionally providing support for HTTP/2, WebSocket, OSGi, JMX, JNDI, JAAS and many other integrations. These components are open source and are freely available for commercial use and distribution. Jetty is used in a wide variety of projects and products, both in development and production. Jetty has long been loved by developers due to its long history of being easily embedded in devices, tools, frameworks, application servers, and modern cloud services. Full-featured and standards-based. Open source and commercially usable, flexible and extensible, small footprint, embeddable, asynchronous, enterprise scalable, and dual-licensed under Apache and Eclipse. Large clusters, such as Facebook Presto. Cloud computing, such as Google AppEngine. With the direction of Java and the JakartaEE project (formerly JavaEE) in 2020, the current recommended version of Jetty for use depends upon the servlet API version, desired licensing, etc. -
8
Apache HTTP Server
Apache Software Foundation
The Apache HTTP Server Project is an effort to develop and maintain an open-source HTTP server for modern operating systems including UNIX and Windows. The goal of this project is to provide a secure, efficient and extensible server that provides HTTP services in sync with the current HTTP standards. -
9
Tengine
Tengine
Tengine is a web server originated by Taobao, the largest e-commerce website in Asia. It is based on the Nginx HTTP server and has many advanced features. Tengine has proven to be very stable and efficient on some of the top 100 websites in the world, including Taobao and tmall. Tengine has been an open source project since December 2011. It is being actively developed by the Tengine team, whose core members are from Taobao, Sogou and other internet companies. Tengine is a community effort and everyone is encouraged to get involved. All features of Nginx-1.17.3 are inherited, i.e., it is compatible with Nginx. Support the connect HTTP method for forward proxy. Enhanced operations monitoring, such as asynchronous log & rollback, DNS caching, memory usage, etc. Sends unbuffered upload directly to HTTP and FastCGI backend servers, which saves disk I/Os. More load balancing methods, e.g., consistent hashing, session persistence, upstream health check, etc. -
10
API Tester
API Tester
API Tester is a completely free mobile app available on iOS, Android, macOS, and watchOS. It is a functional API testing tool that allows users to complete compound tasks on any device. - Test any API on the go: REST, GraphQL, WebSocket, SOAP, JSON RPC, XML, HTTP, HTTPS. - GET, POST, PUT, PATCH, DELETE, etc. HTTP request methods are supported. - Perform the API calls with any kind of request data encoding and transfer type. - Import collections from Swagger, Postman, and YAML, or import requests using cURL, as well as export created requests via link or cURL. - Use a powerful GraphQL editor with full-scale experience. - WebSocket testing tool is available: handles connection and message exchange via WS or WSS. The API Tester mobile app allows you to get the job away from your workstation. Save time, work from anywhere!Starting Price: Completely free -
11
MacHTTP-js
MacHTTP-js
MacHTTP-js is currently available for preview on macOS now. As a brand new application, MacHTTP-js includes features never envisioned in the original when it was first released in 1992. MacHTTP-js is written from the ground up using the node.js platform, which means it is a cross-platform application that can run on macOS, Windows, and Linux operating systems. MacHTTP-js is a full-featured Web server for 21st century desktops and servers. A "preview" release is available now for Mac users, followed by a general release for Windows 10 and Linux computers, including support for Docker. This is a full-featured release for macOS and other O/S versions will follow shortly. -
12
kWS
Kamran Zafar
kWS is a lightweight and fast Web Server especially designed for Android mobile devices. It can be used to host websites and to serve files over HTTP. kWS implements HTTP-1.0. Basic & digest authentication for secure access. Server side includes (SSI). Directory index, directory downloads in tar, tgz & zip formats. Resumable file downloads, built-in Dynamic DNS updates, up to 20 parallel connections, comprehensive HTTP logs. HTTPS/TLS support with BKS & PKCS12 keystores. Password-based file encryption (128 bit AES & Triple DES). GZip file compression, directory index in JSON & XML formats and index sorting, highly configurable with support for up to 999 per-port parallel connections. Directory level configuration, support for more Dynamic DNS providers like ZoneEdit etc. kWS also provides auto start on boot. -
13
MigratoryData
MigratoryData
Enterprises running real-time web and mobile apps struggle with latency, bandwidth, and scalability issues, which negatively impact the total cost of ownership as well as the real-time experience of their users. These issues are inherent to the traditional techniques, such as HTTP polling or long polling, employed to achieve real-time communication using web and application servers. To overcome these issues, we created MigratoryData, a real-time messaging technology leveraging the WebSockets standard, streaming data to and from users over persistent WebSocket connections in milliseconds and with minimal traffic overhead. Unlike other real-time messaging technologies, MigratoryData has been designed to scale to a large number of users. It has been benchmarked to stream real-time data to 10 million concurrent users from a single commodity server. -
14
Gunicorn
Gunicorn
Gunicorn 'Green Unicorn' is a Python WSGI HTTP Server for UNIX. It's a pre-fork worker model. The Gunicorn server is broadly compatible with various web frameworks, simply implemented, light on server resources, and fairly speedy. -
15
Lucid KV
Lucid KV
Lucid is currently in a development stage but we want to achieve a fast, secure and distributed key-value store accessible through an HTTP API, we also want to propose persistence, encryption, WebSocket streaming, replication and a lot of features. Private Keys Storing, IoT (to collect and save statistics data), Distributed cache, service discovery, distributed configuration, blob storage etc. -
16
Apache Traffic Server
Apache Software Foundation
Apache Traffic Server™ software is a fast, scalable and extensible HTTP/1.1 and HTTP/2 compliant caching proxy server. Formerly a commercial product, Yahoo! donated it to the Apache Foundation, and currently used by several major CDNs and content owners. Improve your response time, while reducing server load and bandwidth needs by caching and reusing frequently-requested web pages, images, and web service calls. Scales well on modern SMP hardware, handling 10s of thousands of requests per second. Easily add keep-alive, filter or anonymize content requests, or add load balancing by adding a proxy layer. APIs to write your own plug-ins to do anything from modifying HTTP headers to handling ESI requests to writing your own cache algorithm. Handling over 400TB a day at Yahoo! both as forward and reverse proxies, Apache Traffic Server is battle hardened. -
17
OpenResty
OpenResty
OpenResty® is a full-fledged web platform that integrates our enhanced version of the Nginx core, our enhanced version of LuaJIT, many carefully written Lua libraries, lots of high-quality 3rd-party Nginx modules, and most of their external dependencies. It is designed to help developers easily build scalable web applications, web services, and dynamic web gateways. By taking advantage of various well-designed Nginx modules (most of which are developed by the OpenResty team themselves), OpenResty® effectively turns the nginx server into a powerful web app server, in which the web developers can use the Lua programming language to script various existing nginx C modules and Lua modules and construct extremely high-performance web applications that are capable to handle 10K ~ 1000K+ connections in a single box. OpenResty® aims to run your server-side web app completely in the Nginx server, leveraging Nginx's event model to do non-blocking I/O with the HTTP clients. -
18
Apache Tomcat
Apache
The Apache Tomcat® software is an open source implementation of the Jakarta Servlet, Jakarta Server Pages, Jakarta Expression Language, Jakarta WebSocket, Jakarta Annotations and Jakarta Authentication specifications. These specifications are part of the Jakarta EE platform. Apache Tomcat software powers numerous large-scale, mission-critical web applications across a diverse range of industries and organizations. Some of these users and their stories are listed on the PoweredBy wiki page. The Apache Tomcat Project is proud to announce the release of version 10.0.10 of Apache Tomcat. This release implements specifications that are part of the Jakarta EE 9 platform. -
19
Tornado Web Server
Tornado
Tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed. By using non-blocking network I/O, Tornado can scale to tens of thousands of open connections, making it ideal for long polling, WebSockets, and other applications that require a long-lived connection to each user. Tornado is different from most Python web frameworks. It is not based on WSGI, and it is typically run with only one thread per process. While some support of WSGI is available in the tornado.wsgi module, it is not a focus of development and most applications should be written to use Tornado’s own interfaces (such as tornado.web) directly instead of using WSGI. In general, Tornado code is not thread-safe. Tornado is integrated with the standard library asyncio module and shares the same event loop (by default since Tornado 5.0). In general, libraries designed for use with asyncio can be mixed freely with Tornado. -
20
Proxyman
Proxyman LLC
## Features * 🍏 **macOS-optimized:** Crafted with Swift and Objective-C, leveraging Apple SwiftNIO for high-performance networking. * 🖥️ **Apple Silicon ready:** Full compatibility with M1, M2, and M3 chips. * 🚀 **Modern OS support:** Designed for macOS Ventura and Sonoma. * 🌐 **Seamless traffic interception:** Effortlessly capture HTTP/HTTPS and WebSocket data from browsers, iOS, and Android. * 🎨 **User-friendly interface:** Sleek and intuitive design for ease of use. * 🔎 **Advanced filtering:** Multiple options for precise data analysis. * 📱 **Cross-platform setup:** Detailed guides for iOS simulator and physical iOS/Android devices. * 🛠️ **Essential debugging toolkit:** Compose, Repeat, Wildcard/Regex Filtering, Column Customization, and more. * 🔧 **Pro-level features:** Breakpoints, Local/Remote Mapping, Blacklisting. ...Starting Price: 69$ -
21
Swoole
Swoole
Powering the next-generation microservices and applications. Build high-performance, scalable, concurrent TCP, UDP, Unix Socket, HTTP, GRPC services with PHP and easy-to-use coroutine, fibers API. Write your next scalable async application with PHP coroutines and fibers. Compared with other async programming frameworks or software such as Nginx, Tornado, and Node.js, Swoole is a complete async solution that has built-in support for async programming via fibers/coroutines, a range of multi-threaded I/O modules (HTTP server, GRPC, process pools) and support for popular PHP clients like PDO for MySQL, Redis, and CURL. You can use sync or async, coroutine, or fiber API to write the applications or create thousands of lightweight fibers within one Linux process. Swoole enhances the efficiency of your PHP applications and brings you out of the traditional stateless model, enabling you to focus on the development of innovative products at a high scale.Starting Price: Free -
22
SpeedyNodes
SpeedyNodes
SpeedyNodes is a service that blockchains companies and privates in an easy way to access nodes by JSON-RPC, HTTPS & WebSockets APIs. SpeedyNodes is a node provider that provides the infrastructure for building on blockchain. At SpeedyNodes we do provide reliable full, dedicated and Archive blockchain nodes. With our lightning-fast API, providing instant access to Ethereum, Polygon, Bitcoin, Binance and much more. Our service is very fast and responsive. Our positive feedback is very good . We are trying to get everyone onboard with our affordable prices. Our prices start from $50 with unlimited requests.Starting Price: $50 -
23
H2O
H2O
H2O is a new generation HTTP server that provides a quicker response to users with less CPU utilization when compared to older generation of web servers. Designed from the ground up, the server takes full advantage of HTTP/2 features including prioritized content serving and server push, promising an outstanding experience to the visitors of your website. Full support for dependency and weight-based prioritization with server-side tweaks. Thanks to others, H2O is provided as a binary package on some environments. Therefore you may try to at first install the software using your favorite packaging system, and then resort to installing from source. Generally speaking, we believe that using LibreSSL is a better choice for running H2O, since LibreSSL not only is considered to be more secure than OpenSSL but also provides support for new ciphersuites. -
24
Jaisocx
Jaisocx
Since 2024 Jaisocx supports PHP over HTTP/3, intuitively switching among HTTP/1.1, h2 and h3 depending on negotiation with HTTP client. a) Unique feature is Charset detection of published text contents, and making browser showing correctly extended ascii chars like in German or French alphabets. b) It has built-in motor for securing endpoints with Basic Auth and JSON Web Token. c) Proxy Endpoints. d) Also the framework-like solution for publishing SQL queries results in JSON format out of the box with minimal configuration. e) On the same company site this software is well documented. f) Software is free, g) and has the Docker Hub repository h) and Github.com repository with some basic samples for Laravel, Symfony and WordPress apps under Docker Compose.Starting Price: $0 -
25
Infura
Infura
Infura's world-class infrastructure will ensure your decentralized application scales to meet your user demand. Connect your app immediately with our instant access APIs. We support JSON-RPC over HTTPS & WebSocket interfaces, providing request and subscription-based connections. Start using Infura with a single URL. Our 24/7 team of experts is ready to handle all network changes and upgrades so you can focus on building your applications. We believe in a future powered by decentralized networks and protocols. We provide world-class infrastructure for developers so you can spend your time building and creating. You can find valuable insights, add applications, and more through our Infura dashboard. Need help or have questions? Get answers in our active community, up-to-date status page, or dig directly into our expanding library of documentation.Starting Price: $50 per month -
26
PENDAX
Compendium
A Javascript library allowing simplified interaction with advanced commands on a growing list of cryptocurrency exchanges and financial applications. Simplified exchange commands and interoperability. Our underlying high-frequency trading engine, PENDAX, is available for all developers, traders, financial analysts, and data scientists to build custom integrations on. It provides simple access to a variety of different use cases revolving around trading and data deployments. Current Feature Summary - Full Public and Private HTTP REST APIs for all supported platforms are integrated in an efficient manner for secondary deployment. - Aggregated commands are normalized between systems in the unified package making PENDAX extremely easy to integrate. - WebSocket and live data capabilities are included for all supported exchanges. - No subscription is needed for a "Professional" version of PENDAX.Starting Price: Free -
27
PentestBox
PentestBox
PentestBox is an Opensource PreConfigured Portable Penetration Testing Environment for the Windows Operating System. PentestBox was developed to provide the best penetration testing environment for Windows users. By default PentestBox runs like a normal user, no administrative permission is required to launch it. To make PentestBox more awesome we have also included HTTPie, HTTPie is a command line HTTP client. Its goal is to make CLI interaction with web services as human-friendly as possible. It provides a simple http command that allows for sending arbitrary HTTP requests using a simple and natural syntax, and displays colorized output. HTTPie can be used for testing, debugging, and generally interacting with HTTP servers. PentestBox also contains a modified version of Mozilla Firefox with all the security addons pre installed in it. -
28
Cherokee
Cherokee
Cherokee is an innovative, feature-rich, lightning-fast and easy to configure open source web server designed for the next generation of highly concurrent secured web applications. All the configuration is done through Cherokee-Admin, a beautiful and powerful web interface. Cherokee supports the most widespread web technologies, FastCGI, SCGI, PHP, uWSGI, SSI, CGI, LDAP, TLS/SSL, HTTP proxying, video streaming, content caching, traffic shaping, etc. Cherokee runs on Linux, Mac OS X, Solaris, and BSD. It is highly efficient, extremely lightweight and provides rock-solid stability. Among its many features, there is one that deserves special credit, a user-friendly interface called cherokee-admin that is provided for a no-hassle configuration of every single feature of the server. This administration interface allows you to configure the webserver without having to worry about editing a text file written with a certain syntax. -
29
websockets
Python Software Foundation
An implementation of the WebSocket Protocol (RFC 6455 & 7692). websockets is a library for building WebSocket servers and clients in Python with a focus on correctness, simplicity, robustness, and performance. Built on top of asyncio, Python’s standard asynchronous I/O framework, it provides an elegant coroutine-based API. websockets is heavily tested for compliance with RFC 6455. Continuous integration fails under 100% branch coverage. websockets is built for production. For example, it was the only library to handle backpressure correctly before the issue became widely known in the Python community. Memory usage is optimized and configurable. A C extension accelerates expensive operations. It’s pre-compiled for Linux, macOS, and Windows and packaged in the wheel format for each system and Python version. websockets takes care of everything under the hood so you can focus on your application!Starting Price: Free -
30
RoboTask
RoboTask
RoboTask is a macro automation software that can easily automate any series of tasks without writing code. The program allows to easily create simple macros, as well as highly complex automation, involving conditional logic, loops, custom variables, and other advanced options. Automation of work with files and folders; keyboard and mouse macro recorder. Emulation of mouse and keyboard actions and automated FTP/SFTP/FTPS file transfer (upload, download, synchronize). Email POP3/IMAP/SMTP automation (checking, sending and retrieving), SQL database automation, it works with Excel. Web automation (fill web forms, web actions). Working with images (convert, resize, crop, flip, watermark, etc.) and working with a clipboard, system registry, processes, regular expressions, etc. Built-in HTTP web server with WebSockets support. integration with Python, Javascript, Powershell, and much more! You can create a scheduled macro that runs one or more tasks at specified times.Starting Price: $150 one-time payment -
31
MaticVigil
MaticVigil
We allow you to build full-stack apps on Ethereum via Matic Network, without learning protocol specifics. Our docs cater to every developer, all the way from beginners to those already building apps via web3, and provide examples to build upon. Smart contracts are quickly deployed through our system and the resulting Open API spec along with webhook and WebSockets are instantly available to start testing. Supercharge and extend your blockchain apps with our integration services over Websockets, Webhooks, Zapier, Slack, IFTTT. The possibilities are endless. MaticVigil is an API gateway on top of the Matic-network EVM-compatible sidechain. It enables a developer to write code to interact with value transfers and transactions on Matic as if it were talking to just another web service REST API over HTTP. You can focus on coding "business logic" without worrying about the "protocol logic" behind the scenes. -
32
Streamer.bot
Streamer.bot
Streamer.bot is a versatile tool designed to enhance live streaming experiences on platforms like Twitch and YouTube. It offers advanced automation capabilities through actions, queues, and variables, enabling the creation of complex interactions. The software integrates seamlessly with OBS Studio, allowing users to automate recording and streaming statuses, as well as modify sources and filters in real time. Additionally, Streamer.bot supports connections with various platforms, including VTube Studio, Elgato Wave Link, Crowd Control, IFTTT, Ko-Fi, DonorDrive, Streamlabs Desktop, PolyPop, StreamElements, Patreon, Lumia Stream, VoiceMod, HypeRate, and Pulsoid. Its extensibility is further enhanced by the ability to send or receive data using WebSockets, HTTP methods, or UDP packets, and it supports custom scripting with command-line executions and C# code. The software also features integration with Speaker.bot for advanced text-to-speech functionality. -
33
Bitstamp
Bitstamp
With a proven track record and a mature approach to the industry, we provide reliable trading of cryptocurrencies. Stay connected to the market with our mobile app. Featuring advanced order types and analytical tools for experienced traders, as well as a simple buy & sell interface for those just getting started. We provide premium access to crypto trading for both individuals and institutions through high liquidity, reliable order execution and constant uptime. Set up your own trading interface or deploy your algorithmic strategy with our high-performance FIX and HTTP APIs. Connect to our WebSocket for real-time data streaming. Premium 24/7 support available to all customers worldwide by phone or email. Dedicated account managers for partners. Instant card purchases are supported worldwide with a few exceptions. Deposit and withdraw funds easily from anywhere in the world. US customers can use ACH for instant deposits. -
34
Architect
Architect
Architect gives you the power to configure, locally build, and globally deploy web apps to the cloud using concise, declarative statements. Built on rock-solid AWS foundations, Architect makes advanced web development a breeze. Scaffold a fresh Architect project with a single command. Get a local, production-like environment up and running instantly. Deploy to identical staging and production environments in seconds. Architect not only supports cloud functions for HTTP but also web sockets, queues (FIFO), events (fan-out), and scheduled tasks backed by a world-class database that boasts millisecond latency no matter how much data you store or how many people concurrently access it. All these capabilities, and more, with terse but deterministic Infra-as-Code (IaC). We prioritize speed with fast local dev, smart configurable defaults, and flexible infrastructure as code. You can focus on business logic instead of glue code and only pay for in-use services on-demand.Starting Price: Free -
35
Bottle
Bottle
Bottle is a fast, simple and lightweight WSGI micro web-framework for Python. It is distributed as a single file module and has no dependencies other than the Python Standard Library. Requests to function-call mapping with support for clean and dynamic URLs. Fast and pythonic built-in template engine and support for mako, jinja2 and cheetah templates. Convenient access to form data, file uploads, cookies, headers and other HTTP-related metadata. Built-in HTTP development server and support for paste, bjoern, gae, cherrypy or any other WSGI capable HTTP server. -
36
web3.js
web3.js
web3.js is a collection of libraries that allow you to interact with a local or remote ethereum node using HTTP, IPC or WebSocket. A Bloom filter is a probabilistic, space-efficient data structure used for fast checks of set membership. That probably doesn’t mean much to you yet, and so let’s explore how bloom filters might be used. Imagine that we have some large set of data, and we want to be able to quickly test if some element is currently in that set. The naive way of checking might be to query the set to see if our element is in there. That’s probably fine if our data set is relatively small. Unfortunately, if our data set is really big, this search might take a while. Luckily, we have tricks to speed things up in the ethereum world! -
37
Huawei Cloud Eye
Huawei Cloud
Cloud Eye enables you to visualize metrics of cloud resources and services in real time. Cloud Eye allows you to easily analyze metrics aggregated using different methods; you can view metrics data for up to six months. Cloud Eye sends alarm notifications through emails and text messages or to HTTP/HTTPS endpoints when it detects abnormal metric trends, so you can respond to resource changes in real time. You can derive actionable insights from detailed metrics for your cloud servers. In addition, you can use the Agent, APIs, and SDKs to monitor custom metrics. Displays the monitoring data of the last six months for all cloud services and is enabled by default. Alarm rules can be configured for cloud resources in specific dimensions. Custom and default alarm templates facilitate batch creation of alarm rules. -
38
Barchart OnDemand
Barchart
Our flexible cloud-based APIs make getting powerful data into your applications, workflows, and products simple. Through Amazon Web Services we maintain multiple data centers throughout the United States, ensuring optimal reliability and redundancy. Through server virtualization and built-in security procedures we can scale up our institutional ready services in a matter of seconds. We support both GET and POST requests as well as SOAP. Data can be delivered in multiple formats including XML, JSON and CSV, and can be streamed over WebSockets. We’re compatible with any operating system, such as Windows, Linux, iOS or Android, and any programming language, such as Python, Java, PHP, R, or ASP.NET. We embrace the cloud but also maintain physical data centers for specific client needs. Through our Equinix-based facilities we cater to low latency requirements and provide a true physical back-up. -
39
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 -
40
Shadowrocket
Shadow Launch Technology Limited
Shadowrocket is a rule-based proxy utility that captures all HTTP, HTTPS, DNS, and TCP traffic from any app and redirects it to a proxy server, then records and displays each request for detailed inspection. Users define rules by domain match, suffix, keyword, CIDR IP range, or GeoIP lookup, import configurations via URL or iCloud Drive, and measure usage and speed across Wi-Fi, cellular, direct, and proxy connections. It also blocks ads by domain or user-agent rules, supports local DNS mapping, decrypts HTTPS traffic, rewrites URLs, and fully supports IPv6. Advanced script filters, multi-level forward proxying, and compatibility with kcptun, cloak, gost, and v2ray plugins extend its flexibility, while DNS-over-HTTPS, DNS-over-TLS, and DNS-over-QUIC ensure secure name resolution. Shadowrocket runs seamlessly on cellular networks and integrates SSH tunneling with UDP gateway support, making it a powerful tool for monitoring, filtering, and optimizing network traffic.Starting Price: Free -
41
Gato GraphQL
Gato GraphQL
Gato GraphQL is a powerful and flexible GraphQL server for WordPress, enabling users to access and manipulate any piece of data, such as posts, users, comments, tags, and categories, via a GraphQL API. It supports building dynamic, headless sites by using WordPress as the CMS to manage data while allowing the use of any framework for rendering. It offers multiple interactive clients, including GraphiQL and Voyager, providing user-friendly interfaces for composing queries and visualizing the schema. Security features include granular access control based on user roles or IP addresses, HTTP caching for performance optimization, and the ability to create public, private, and password-protected endpoints. Gato GraphQL also supports nested mutations, custom endpoints, persisted queries, and field deprecation via the UI. Additionally, it integrates with popular WordPress plugins and external services, extending the GraphQL schema's capabilities. Starting Price: $249 one-time payment -
42
Azure Web PubSub
Microsoft
Azure Web PubSub is a fully managed service that enables developers to build real-time web applications using WebSockets and the publish-subscribe pattern. It supports native and serverless WebSockets, allowing for scalable, bi-directional communication without the need to manage infrastructure. This service is ideal for applications such as chat rooms, live broadcasting, and IoT dashboards. Supports real-time publish-subscribe messaging for web application development through native and serverless WebSocket support. Built-in support for large-scale client connections and highly available architectures, enabling applications to handle numerous simultaneous users. Offers support for a wide variety of client SDKs and programming languages, facilitating seamless integration into existing applications. Provides built-in security features, including Azure Active Directory integration and private endpoints, to help protect data and manage access. -
43
TekSIP
KaplanSoft
TekSIP is a SIP Registrar and SIP Proxy for Windows. TekSIP supports UDP, TCP, TLS and WebSocket (IPv4 & IPv6) transports. TLS and Secure WebSocket are supported in only commercial editions. TekSIP is tested on Microsoft Windows Vista, Windows 7/8/10/11 and Windows 2008-2022 server. TekSIP can be deployed as a signaling server for WebRTC based SIP phones. TekSIP complies with RFC 3261, RFC 3263, RFC 3311, RFC 3581 and RFC 3891. It supports NAT traversal and ENUM. Please see technical details about NAT traversal in Readme. You can select IP address to be listened and alternative SIP endpoints for outgoing calls. You can also log session details into a log file and monitor active registrations and sessions in real-time. You can monitor number of active registrations and sessions using Windows Performance Monitor (Perfmon.exe). TekSIP can redirect calls to alternate endpoint when called endpoint is unavailable (Off-line, busy...). Active SIP session can be terminated via GUI.Starting Price: $239 -
44
PAW Server
PAW Server
Connect your PC via WiFi or USB (ADB is supported). For more security HTTPS is available. PAW provides a Tasker/Locale integration to make automatic startup and shutdown easy. PAW is a true web server allowing you to host your own pages on your Android device. Just put your content into the /sdcard/paw/HTML directory, and that's it! Not only can you deploy your own web page but you can also develop your own dynamic web applications. The Android API can be used, this also includes SQLite database connectivity. With PAW you can install plugins ranging from PHP to PirateBox or develop plugins yourself. Explore Android with PAW by utilizing the Android API and changing the exiting code. Most of PAW's web application is available as plain text for you to edit and enhance. Documentation and examples are available from within the web application. You can build your own server based on PAW free of charge for private and educational purposes. -
45
HttpWatch
Neumetrix
Become a debugging and web performance guru with the ultimate in-browser HTTP sniffer. Debug the network traffic generated by a web page directly in the browser without having to switch to a separate tool. Accurately measure the network performance of a web page and view opportunities for boosting its speed. No extra configuration or proxies are required - even with encrypted HTTPS traffic! Quickly find weak SSL configurations and other security-related issues on your web server. Anyone can use the free Basic Edition to send you full log files to help you remotely diagnose errors or performance issues. Use the HttpWatch API to collect performance data from your automated website tests. HttpWatch integrates with Chrome, Edge and Internet Explorer browsers to show you the HTTP and HTTPS traffic that is generated when you access a web page. Select a request in HttpWatch and everything you need to know is display in a tabbed window.Starting Price: $395 one-time payment -
46
HttpMaster
Borvid
HttpMaster is a debugging and testing tool for various HTTP applications with special focus on web APIs and RESTful web services. Key features: - HttpMaster project to store complete definition of HTTP calls in one single place. - Broad set of HTTP properties (HTTP headers, URL encoding, etc.). - Dynamic parameters to simulate variations of input data or create global API values. - Response data validation with logical expressions. - Request chaining to use data from previous request with the next request. - Extensive data upload support, including 'multipart/form-data'. - Request data builder for creating request body with an optional dynamic parameters. - Request item execution with detailed progress monitoring. - Execution groups to create batches of requests. - Comprehensive execution data review and management. - Basic request tool for ad-hoc execution. - Command line interface. - PDF reports. - Support for cURL commands.Starting Price: Starting from $69 -
47
Finage
Finage
Financial data & solutions for everyone. Real-time Stock, Forex and Cryptocurrency market data via API, WebSocket & Widgets. Finage has more than 28.000+ symbols in real-time. We bring together everything that’s required to build financial applications that need Real-Time stock, forex and cryptocurrency data via APIs and WebSocket. You can reach more than 25.000+ U.S. stock data via Finage's Real-Time WebSocket and APIs. You can also use the 15-year Historical Data API for the U.S stocks as well. Finage offers more than 1300+ currencies in real-time & Historical Data API. Forex data all in one place, so you can access our full selection of data. We offer you more than 1500+ cryptocurrencies via API and WebSocket. Finage has the most popular cryptocurrencies as Real-time. Visuality is the best way to demonstrate complex data for easy understanding. Select custom widgets with different color schemes to best fit best on your platform. Available across most of popular platforms.Starting Price: $99 per month -
48
Hiawatha
Hiawatha
Hiawatha has been written with security in mind. This resulted in a highly secure webserver in both code and features. Hiawatha can stop SQL injections, XSS and CSRF attacks and exploit attempts. Via a specially crafted monitoring tool, you can keep track of all your webservers. You don't need to be a HTTP or CGI expert to get Hiawatha up and running. Its configuration syntax is easy to learn. The documentation and examples you can find on this website will give you all the information you need to configure your webserver within minutes. Although Hiawatha has everything a modern webserver needs, it's nevertheless a small and lightweight webserver. This makes Hiawatha ideal for older hardware or embedded systems. Special techniques are being used to keep the usage of resources as low as possible. -
49
HarperDB
HarperDB
HarperDB is a distributed systems platform that combines database, caching, application, and streaming functions into a single technology. With it, you can start delivering global-scale back-end services with less effort, higher performance, and lower cost than ever before. Deploy user-programmed applications and pre-built add-ons on top of the data they depend on for a high throughput, ultra-low latency back end. Lightning-fast distributed database delivers orders of magnitude more throughput per second than popular NoSQL alternatives while providing limitless horizontal scale. Native real-time pub/sub communication and data processing via MQTT, WebSocket, and HTTP interfaces. HarperDB delivers powerful data-in-motion capabilities without layering in additional services like Kafka. Focus on features that move your business forward, not fighting complex infrastructure. You can't change the speed of light, but you can put less light between your users and their data.Starting Price: Free -
50
CoinAPI
CoinAPI
All cryptocurrency exchanges integrated under a single API. CoinAPI is a platform which provides fast, reliable and unified data APIs to cryptocurrency markets. We are a high-quality, one-stop-solution market data provider for cryptocurrency markets. All CoinAPI data is standardized. Market symbol details and asset codes are double-checked by real humans to ensure maximum quality. Our data is delivered to you on-demand using well-documented and simple HTTP RESTful API in JSON, XML or CSV formats. For more demanding integrations requiring real-time market data streaming, we have access through WebSocket and FIX protocols. We provide helper libraries for the most popular programming languages, so you can focus on the most important aspects instead of wasting time connecting the pieces together. We provide helper libraries for the most popular programming languages, so you can focus on the most important aspects instead of wasting time connecting the pieces together.Starting Price: $79 per month
