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k6.io
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Automated and on-demand performance testing for developers.
Table of Contents
k6.io - 2026 Pricing, Features, Reviews & Alternatives
All user reviews are verified by in-house moderators and provider data by our software research team. Learn more
Last updated: December 2025
k6.io overview
What is k6.io?
WHY LOAD TEST?
Time is money – Most websites and applications are revenue generating tools for companies and
poor performance translates to customers lost.
Performance matters - 47% of PC visitors and 69% of tablet visitors expect response times equal to or below 2 seconds (Akamai, 2012); 18% of shopping carts are abandoned due to slow website performance (Radware, 2013); 68% of website owners experienced performance or stability problems in 2012 (Load Impact, 2012).
The complexity of mobile – Performance is the most important differentiator when it comes to mobile app adoption, use and abandonment rates. A small delay in load-time might seem like a minor issue, but in reality even a small change in latency – from 2ms (broadband) to 400ms (3G network) – can cause a page load time to go from 1 second to 30 seconds.
Cost Savings – There are many parts of the web architecture such as web servers, load balancers, firewalls, Internet service providers, third party applications and local internet service providers. Load testing allows you to pinpoint bottlenecks in different parts of the web architecture so you only upgrade what you need to.
Key benefits of using k6.io
Mobile testing - Quickly create a load test which simulates different mobile network conditions - such as 3G, 4G, Edge, etc - and easily record mobile user scenarios using our hosted proxy recorder.
API testing - Exercise the set of calls documented in your API exactly as your users would. Ensure that resources exposed by the API can be created, listed, updated and deleted appropriately under expected load.
Large-scale load generation – We are able to generate load levels as high as 1.2 million concurrent users with multiple IPs and locations, depending on requirements.
Automatic and advanced scripting - Script user scenarios in Lua, using our IDE with code completion, JSON and XML parsing, data parameterization and more. Or analyze a web page and generate a load script automatically - no programming required.
Server metrics - Install our lightweight monitoring agent on the servers you are load testing and get detailed information about resource utilization (CPU, memory usage, etc) on your machines during your load test
Scenario recorders - Record an HTTP session using our proxy recorder or our Chrome Extension and let the simulated users perform the same actions during the test.
Browser emulation - Configure your load test to emulate popular browsers such as Firefox, IE, Chrome, Safari etc. or more exotic types of user agents such as GoogleBot
Multi-geographic distribution of load - In a single test, we can generate load from up to 10 different locations simultaneously. We can add even more locations upon request.
Continuous Delivery testing - Use our Continuous Integration plugins (TeamCity and Jenkins) for easy implementation or our raw access API and SDKs (Java and Python) for greater control and flexibility.
Starting price
per month
Alternatives
with better value for money
k6.io’s user interface
k6.io reviews
Overall rating
5.0
/5
3
Positive reviews
100
%
- Value for money
- Ease of use
- Features
- Customer support
- Likelihood to recommend9/10
5
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3
2
1
3
0
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k6.io's features
Features rating:
k6.io alternatives
k6.io
Starting from
299
/user
Per month
Loadster
Starting from
No pricing info
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Starting from
No pricing info
BrowserStack
Starting from
No pricing info
k6.io pricing
Value for money rating:
Starting from
299
/user
Per month
User opinions about k6.io price and value
Value for money rating:
k6.io integrations (1)
Top integrations
k6.io support options
Typical customers
Platforms supported
Support options
Training options
k6.io FAQs
k6.io has the following typical customers:
Freelancers, Large Enterprises, Mid Size Business, Non Profit, Public Administrations, Small Business
These products have better value for money
Q. What languages does k6.io support?
k6.io supports the following languages:
English
Q. Does k6.io offer an API?
No, k6.io does not have an API available.
Q. What level of support does k6.io offer?
k6.io offers the following support options:
FAQs/Forum, Email/Help Desk, Knowledge Base