Assertible Alternatives

Assertible is described as 'is the easiest way to test and monitor your APIs and helps reduce bugs in web apps by providing tools to continuously validate endpoints and responses with a flexible interface to run your tests any time and place' and is a HTTP Client in the development category. There are more than 25 alternatives to Assertible for a variety of platforms, including Mac, Windows, Linux, Online / Web-based and SaaS. The best alternative is Insomnia REST Client, which is both free and Open Source. Other great apps like Assertible are Postman, Hoppscotch, soapUI and Advanced REST Client.

Assertible alternatives are mainly API Clients but may also be HTTP Clients or Uptime Monitor Services. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Assertible.

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Assertible

Freemium • Proprietary
HTTP Client

Mac
Windows
Linux
Online

Assertible is the easiest way to test and monitor your APIs and helps reduce bugs in web apps by providing tools to...

Learn more about Assertible

Insomnia REST Client
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No
Freemium • Open Source
HTTP Client
API Client
Mac
Windows
Linux
47 alternatives to Insomnia REST Client
A powerful REST API Client with cookie management, environment variables, code generation, and authentication for Mac, Window, and Linux.
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Insomnia REST Client Features
1. LightweightInsomnia REST Client consumes less device resources compared to similar apps.
2. Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
Request Chaining
REST API
Import Curl commands
GraphQL
REST Client
API Management
Separated workspaces
Support environment variables
Code generation
Configurable request timeout
Postman
Do you think this is a good alternative?
Yes
No
Freemium • Proprietary
API Client
HTTP Client
Mac
Windows
Linux
Online
Chrome OS
Google Chrome
Flathub
Flatpak
58 alternatives to Postman
Postman is a tool that facilitates the development and use of APIs. Postman provides all the functionality needed to create or simulate API specifications and use the Postman Collection Runner to create tests.
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Postman Features
REST API
Development API
API Management
Graphical User Interface
CI/CD
SOAP API
Hoppscotch
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Yes
No
Free • Open Source
HTTP Client
API Client
HTTP(S) Debugger
Online
Self-Hosted
46 alternatives to Hoppscotch
Hoppscotch is an open-source API development ecosystem. It helps you create your requests faster, saving you precious time on your development.
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Hoppscotch Features
1. Ad-freeHoppscotch doesn't contain any form of external advertising.
2. Command line interfaceHoppscotch either have CLI support or is a CLI-only app.
3. LightweightHoppscotch consumes less device resources compared to similar apps.
REST API
Websocket streams
GraphQL API
Cross browser testing
soapUI
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No
Free • Open Source
API Client
HTTP Client
Mac
Windows
Linux
54 alternatives to soapUI
Eviware, the maker of soapUI, Web Service Testing Leader

soapUI is a tool for functional testing, mainly of web services like SOAP based web services and RESTful web services, but also HTTP based services and JMS Services as well as databases. soapUI is an open source and compl.
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soapUI Features
Intuitive Nodes
Advanced REST Client
Do you think this is a good alternative?
Yes
No
Free • Open Source
API Client
HTTP Client
Mac
Windows
Linux
Chrome OS
Google Chrome
Chromium
AppImageHub
48 alternatives to Advanced REST Client
API testing tool. Which allows web developers to create and test custom HTTP requests.
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Advanced REST Client Features
Full headers control
Electron based
Web tool
REST API
Sync with Google Drive
REST Client
API Testing
Pingdom
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Yes
No
Paid • Proprietary
Uptime Monitor Service
Online
220 alternatives to Pingdom
Pingdom web site monitoring and other infrastructure for you and instantly let you know when anything goes wrong. Measure uptime, downtime, and the performance of your website as experienced by visitors.
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Pingdom Features
1. Website MonitoringPingdom can detect and resolve website performance issues proactively.
Performance Monitoring
Transactional Monitoring
OnlineOrNot
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Yes
No
Freemium • Proprietary
Uptime Monitor Service
Software as a Service (SaaS)
55 alternatives to OnlineOrNot
We alert you, before your customers do.

OnlineOrNot monitors your websites, web apps, and APIs, letting you know instantly if anything goes wrong.
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OnlineOrNot Features
1. Website MonitoringOnlineOrNot can detect and resolve website performance issues proactively.
Application Monitoring
Runscope
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Yes
No
Freemium • Proprietary
Mac
Windows
Linux
Online
23 alternatives to Runscope
Runscope helps you monitor, log and measure API usage to solve API problems fast. Automatically monitor APIs without any coding. Runscope provides complete logging for all of your API traffic. Track down troublesome API calls with powerful search.
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Runscope Features
Web-Based
Debugging
Backend
restclient.el
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No
Free • Open Source
HTTP Client
API Client
Mac
Windows
Linux
GNU Emacs
39 alternatives to restclient.el
This is a tool to manually explore and test HTTP REST webservices. Runs queries from a plain-text query sheet, displays results as a pretty-printed XML, JSON and even images.
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restclient.el Features
REST API
REST Client
Variables
Web Testing
API Testing
Restfox
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No
Free • Open Source
HTTP Client
API Client
Online
Linux
Mac
Windows
Docker
47 alternatives to Restfox
Offline-first web HTTP client.
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Restfox Features
1. Dark ModeRestfox supports dark mode for comfortable usage in low light conditions.
2. PortableRestfox can be used from a USB stick or similar with no prior installation.
REST API
API Testing
GraphQL integration
REST Client