BlazeMeter vs k6 Open Source comparison

Perforce and k6 are both solutions in the Load Testing Tools category. Perforce is ranked #3 with an average rating of 8.0, while k6 is ranked #7 with an average rating of 7.5. Perforce holds a 11.4% mindshare in LTT, compared to k6’s 3.8% mindshare. Additionally, 94% of Perforce users are willing to recommend the solution, compared to 100% of k6 users who would recommend it.

BlazeMeter

Read 49 BlazeMeter reviews

4,782 Views
4,160 Comparison Views

94% willing to recommend

k6 Open Source

Read 2 k6 Open Source reviews

761 Views
586 Comparison Views

100% willing to recommend

BlazeMeter

k6 Open Source

Comparison Buyer's Guide

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Executive SummaryUpdated on Jan 6, 2025

BlazeMeter and k6 Open Source are competing performance testing tools. k6 Open Source holds the upper hand for developers due to its focus on developer efficiency, while BlazeMeter offers better integration and support for enterprise solutions.

Features: BlazeMeter provides comprehensive testing capabilities with seamless integration into various CI/CD pipelines, extensive script customization, and API testing. k6 Open Source emphasizes scripting flexibility using JavaScript, enabling straightforward integration and minimal setup requirements. While BlazeMeter offers a wide range of tools, k6 Open Source caters to agile development environments through its focus on developer usability.

Ease of Deployment and Customer Service: BlazeMeter supports a cloud-based deployment model, making scaling simple and ensuring constant updates. Its customer service is responsive, aiding smoother adoption. k6 Open Source allows self-hosted deployments, giving developers control and flexibility but requiring more technical knowledge. BlazeMeter ensures an easier onboarding process, while k6 Open Source provides autonomy with a potentially steeper learning curve.

Pricing and ROI: BlazeMeter's pricing serves enterprise needs, providing significant ROI for large organizations with its comprehensive features and scalable infrastructure. k6 Open Source has no initial setup costs, making it attractive for startups or individual developers, offering immediate ROI through low-to-zero expenditure. While BlazeMeter supports expansive use cases, k6 Open Source proves cost-effective and agile for smaller teams.

To learn more, read our detailed BlazeMeter vs. k6 Open Source Report (Updated: July 2025).

Buyer's Guide

BlazeMeter vs. k6 Open Source

July 2025

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Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Categories and Ranking

BlazeMeter

Ranking in Load Testing Tools

3rd

Average Rating

8.2

Reviews Sentiment

6.9

Number of Reviews

Ranking in other categories

Performance Testing Tools (2nd), Functional Testing Tools (10th), API Testing Tools (6th), Test Automation Tools (6th)

k6 Open Source

Ranking in Load Testing Tools

7th

Average Rating

7.6

Reviews Sentiment

7.9

Number of Reviews

Ranking in other categories

Regression Testing Tools (10th)

Mindshare comparison

As of July 2025, in the Load Testing Tools category, the mindshare of BlazeMeter is 11.4%, down from 16.6% compared to the previous year. The mindshare of k6 Open Source is 3.8%, up from 1.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Load Testing Tools

Featured Reviews

Manoj Raghavendra

Director at SMKR Consultancy LLP

Provides global load simulations without managing infrastructure and offers built-in reporting features

BlazeMeter should improve or make available some features out of the box that JMeter requires customization for. The licensing cost is also a concern since BlazeMeter is not free like JMeter, which limits its use. Additionally, if there is no host in preferred locations such as some Asian or Middle Eastern countries, it might not be convenient to use BlazeMeter.

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NalinGoonawardana

Principal Consultant ( Test automation - Performance testing) at TTC Global (TTC) at TTC at a tech services company with 51-200 employees

Offers good scalability and has the ability to integrate with various systems and services

One area where k6 could improve is by introducing a GUI similar to JMeter. While k6 is a powerful tool for performance testing, it leans heavily towards coding. Having a GUI, even if it is a low-code approach, could make it more accessible to a broader audience. It would be beneficial to strike a balance where basic tasks can be performed graphically through a user-friendly interface, while still allowing the flexibility for more complex operations through code, similar to how JMeter operates. This could enhance the user experience and make k6 more approachable for those who may not be as comfortable with scripting.

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Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Pros

"The extensibility that the tool offers across environments and teams is valuable."

"Using cloud-based load generators is highly valuable to us, as we can test from outside our network and increase load generation without having to upscale our hardware as much. The cloud load generator is there when we need it and is the feature we leverage the most."

"In our company, various teams use BlazeMeter, particularly appreciating its cloud license software, which supports up to 5,000 users. BlazeMeter's cloud capabilities allow us to load test or simulate traffic from any location worldwide, such as Europe, North America, South America, Australia, and even specific cities like Delhi. So, with one cloud license, we can simulate user load from various locations globally."

"BlazeMeter's most valuable feature is its cloud-based platform for performance testing."

"Its most valuable features are its strong community support, user-friendly interface, and flexible capacity options."

"BlazeMeter can be used for both API and performance testing, it is a multi-facility tool."

"BlazeMeter has provided me with a vast cloud platform to run JMeter script files, eliminating the need for storage or load providers."

"One key advantage of using BlazeMeter is that it does not require me to manage my own infrastructure."

More BlazeMeter pros

"The standout feature of k6 is its strong focus on API performance testing."

"The tool's big advantage is that it is more performance-test oriented for experienced testers who know what they are doing. In a normal working setup, performance engineers frequently work with DevOps and development teams. For these teams, k6 Open Source's syntax is much simpler and easier to understand and apply in the working process."

Cons

"Scalability is an area of concern in BlazeMeter, where improvements are required."

"The Timeline Report panel has no customization options. One feature that I missed was not having a time filter, which I had in ELK. For example, there are only filter requests for a time of less than 5 seconds."

"For a new user of BlazeMeter, it might be difficult to understand it from a programming perspective."

"Having more options for customization would be helpful."

"The performance could be better. When reviewing finished cases, it sometimes takes a while for BlazeMeter to load. That has improved recently, but it's still a problem with unusually large test cases. The same goes for editing test cases. When editing test cases, it starts to take a long time to open those action groups and stuff."

"BlazeMeter should improve or make available some features out of the box that JMeter requires customization for."

"Lacks an option to include additional users during a test run."

"The product currently doesn't allow users to run parallel thread groups, making it an area that should be considered for improvement."

More BlazeMeter cons

"One area where k6 could improve is by introducing a GUI similar to JMeter."

Pricing and Cost Advice

"It's consumption-based pricing but with a ceiling. They're called CVUs, or consumption variable units. We can use API testing, GUI testing, and test data, but everything gets converted into CVUs, so we are free to use the platform in its entirety without getting bogged down by a license for certain testing areas. We know for sure how much we are going to spend."

"The licensing fees are billed on a monthly basis and they cost approximately $100 for the basic plan."

"I would rate the pricing a three out of ten, where one is very cheap, and ten is very expensive."

"The product isn't cheap, but it isn't the most expensive on the market. During our proof of concept, we discovered that you get what you pay for; we found a cheaper solution we tested to be full of bugs. Therefore, we are willing to pay the higher price tag for the quality BlazeMeter offers."

"The product pricing is reasonable."

"The solution is free and open source."

"It is an averagely priced product."

"We pay a yearly licensing fee for the solution."

More BlazeMeter pricing and cost advice

Information not available

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Top Industries

By visitors reading reviews

Financial Services Firm

21%

Computer Software Company

16%

Manufacturing Company

Retailer

Computer Software Company

20%

Financial Services Firm

10%

Manufacturing Company

10%

Media Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

Questions from the Community

How does BlazeMeter compare with Apache JMeter?

Blazemeter is a continuous testing platform that provides scriptless test automation. It unifies functional and performance testing, enabling users to monitor and test public and private APIs. We ...

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What do you like most about BlazeMeter?

It has a unique programming dashboard that is very user-friendly.

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What is your experience regarding pricing and costs for BlazeMeter?

BlazeMeter's pricing depends on the type of account used. They offer multiple account types, with cost variations based on features accessible under each account.

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What do you like most about k6 Open Source?

The standout feature of k6 is its strong focus on API performance testing.

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What needs improvement with k6 Open Source?

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What is your primary use case for k6 Open Source?

k6 Open Source is a powerful tool, especially for API-level performance testing. Its integration capabilities and ease of use make it promising for a wider audience.

See all answers

Comparisons

Apache JMeter vs BlazeMeter

Compared 45% of the time

OpenText Core Performance Engineering (LoadRunner Cloud) vs BlazeMeter

Compared 16% of the time

Tricentis NeoLoad vs BlazeMeter

Compared 15% of the time

OpenText Professional Performance Engineering (LoadRunner Professional) vs BlazeMeter

Compared 5% of the time

Akamai CloudTest vs BlazeMeter

Compared 3% of the time

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Tricentis NeoLoad vs k6 Open Source

Compared 46% of the time

Selenium HQ vs k6 Open Source

Compared 16% of the time

Apache JMeter vs k6 Open Source

Compared 14% of the time

Oracle Application Testing Suite vs k6 Open Source

Compared 9% of the time

More k6 Open Source Competitors

Product Reports

Buyer's Guide

BlazeMeter

July 2025

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Buyer's Guide

Load Testing Tools

July 2025

Download k6 Open Source product report

Also Known As

JMeter Cloud

Load Impact

Overview

BlazeMeter ensures delivery of high-performance software by enabling DevOps teams to quickly and easily run open-source-based performance tests against any mobile app, website or API at massive scale to validate performance at every stage of software delivery.

The rapidly growing BlazeMeter community has more than 100,000 developers and includes prominent global brands such as Adobe, Atlassian, Gap, NBC Universal, Pfizer and Walmart as customers. Founded in 2011, the company is headquartered in Palo Alto, Calif., with its research and development in Tel Aviv.

Perforce

Load Impact offers three main features:

Automated testing - Integrates into your CD pipeline with CI plug-ins or opt for full control with API/SDKs.
API testing - a powerful scripting environment where you can create as simple or complex API scenarios as you need.
Web & web app testing - easily load test your website or web app. Record user scenarios using our Chrome extension or proxy recorder and configure a test with just a few clicks - no programming required.

Sample Customers

DIRECTV, GAP, MIT, NBCUniversal, Pfizer, StubHub

rackspace, salesforce.com, IBM, servicenow, Nasdaq, JWT

Buyer's Guide

BlazeMeter vs. k6 Open Source

July 2025

Free Report: BlazeMeter vs. k6 Open Source

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