BlazeMeter vs k6 Open Source comparison

Perforce and k6 are both solutions in the Load Testing Tools category. Perforce is ranked #4 with an average rating of 7.9, while k6 is ranked #7 with an average rating of 7.5. Perforce holds a 10.1% mindshare in LTT, compared to k6’s 3.9% 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

4,392 Views
3,733 Comparison Views

94% willing to recommend

k6 Open Source

Read 2 k6 Open Source reviews

786 Views
613 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: September 2025).

Buyer's Guide

BlazeMeter vs. k6 Open Source

September 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

4th

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 (7th), Test Automation Tools (5th)

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 (9th)

Mindshare comparison

As of September 2025, in the Load Testing Tools category, the mindshare of BlazeMeter is 10.1%, down from 16.8% compared to the previous year. The mindshare of k6 Open Source is 3.9%, up from 2.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Load Testing Tools Market Share Distribution
Product	Market Share (%)
BlazeMeter	10.1%
k6 Open Source	3.9%
Other	86.0%

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.

Read full review

Quotes from Members

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

Pros

"The product's most valuable features include its cloud-based nature, which allows us to conduct tests without relying on local resources."

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

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

"The baseline comparison in BlazeMeter is very easy, especially considering the different tests that users can easily compare."

"One thing that we are doing a lot with the solution, and it's very good, is orchestrating a lot of JMeter agents. This feature has helped us a lot because we can reuse other vendors' performance scripts that they have used with JMeter before."

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

"The product's initial setup phase was straightforward."

"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

"The product could improve in areas such as mobile testing and the integration of AI analytics."

"Integration is one of the things lacking in BlazeMeter compared to some newer options."

"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."

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

"The should be some visibility into load testing. I'd like to capture items via snapshots."

"Version controlling of the test cases and the information, the ability to compare the current version and the previous version within Runscope would be really nice. The history shows who made the changes, but it doesn't compare the changes."

"The seamless integration with mobiles could be improved."

More BlazeMeter cons

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

Pricing and Cost Advice

"I rate the product's price two on a scale of one to ten, where one is very cheap, and ten is very expensive. The solution is not expensive."

"The product pricing is reasonable."

"It is an averagely priced product."

"The overall product is less costly than our past solutions, so we've absolutely saved money."

"When compared with the cost of the licenses of other tools, BlazeMeter's license price is good."

"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."

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

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

More BlazeMeter pricing and cost advice

Information not available

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Top Industries

By visitors reading reviews

Financial Services Firm

19%

Computer Software Company

15%

Manufacturing Company

Retailer

Computer Software Company

18%

Financial Services Firm

Manufacturing Company

Retailer

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	18
Midsize Enterprise	9
Large Enterprise	22

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.

See all answers

What do you like most about k6 Open Source?

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

See all answers

What needs improvement with k6 Open Source?

See all answers

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

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Compared 43% of the time

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Compared 17% of the time

Tricentis NeoLoad vs BlazeMeter

Compared 16% of the time

OpenText Professional Performance Engineering (LoadRunner Professional) vs BlazeMeter

Compared 6% of the time

Akamai CloudTest vs BlazeMeter

Compared 4% of the time

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Tricentis NeoLoad vs k6 Open Source

Compared 32% of the time

Selenium HQ vs k6 Open Source

Compared 14% of the time

Apache JMeter vs k6 Open Source

Compared 12% of the time

Oracle Application Testing Suite vs k6 Open Source

Compared 8% of the time

SmartBear LoadNinja vs k6 Open Source

Compared 8% of the time

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Product Reports

Buyer's Guide

BlazeMeter

September 2025

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Buyer's Guide

Load Testing Tools

August 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

September 2025

Free Report: BlazeMeter vs. k6 Open Source

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