Knapsack Pro

what our happy customers say

CTO Zentap quote about Knapsack Pro

We've been really enjoying Knapsack Pro, it's been saving us a ton of time.

Devin Brown Software Engineer at Pivotal

Knapsack Pro has helped us build an insanely fast and scalable build pipeline with almost no setup or maintenance.

Tim Lucas Co-founder

We've been using knapsack for a couple of weeks now and I've just tried the trial of Knapsack Pro, and it has managed to reduce our build time (mostly by more accurate balancing) to such a great place.

James Watling Development Team Lead at GuavaPass

Knapsack Pro saves us hours of engineer waiting time every week, and is the best solution for keeping our tests load balanced that we've used to date.

Michael Amygdalidis Senior Software Engineer at Popular Pays

We are using CircleCI and we noticed that builds were being limited by the slowest parallelized container. Knapsack Pro was really east to setup and we saw huge improvements right away. Thank you for making this tool!

Martin Sieniawski Software Engineer at Collage

Knapsack Pro should be the first and only tool you reach for when starting to address long build and test times for Ruby apps. It's so easy to set up on your CI provider that you should do it now, even if you don't need parallelization today. That way, on the day where you first think that you wish tests were faster, you already have all the data and infrastructure you need to quickly half or quarter your build and test times.

Matt McFarland Software Engineer at Modern Treasury

CTO Zentap quote about Knapsack Pro
I've been playing with Queue Mode. Love it! Wow, I love how fast it goes.

Michael Menne CTO at

Your no-pressure sales model really worked for me. The fact there was no pressure and we were getting value really helped me make the purchase decision.

Patrick Collins Designer / Lead Software Engineer

This is a fantastic product, it's been a total game-changer for us.

Geoff Harcourt CTO at CommonLit

I'm very impressed with how well knapsack balancing works.

Joakim Kolsjö Software Developer at

I just logged into my account expecting it to say that I needed to add a credit card and was so surprised and delighted to see the trial doesn't count usage by calendar days but by testing days! This is incredible! I love it!!!

I just wanted to say that I really appreciate that small but very huge feature. Thank you for being so thoughtful :)

Shannon Baffoni Senior Software Engineer
at Blue Bottle Coffee

Knapsack Pro allowed us to achieve great test isolation and therefore stability in End-to-end tests while still maintaining the speed of the whole test suite. On top of that, support is just excellent!

Marcin Cierpicki Head of QA at Packhelp

Finding a tool that could reduce the pipeline run time by ten times was a great joy. It is undoubtedly a huge time and budget-saver for us and our clients.

And special thanks to Artur for his excellent support. I know that most of the questions I could find in the docs and Artur were so kind to explain everything again and again in detail.

Valeriy Tverdohleb Founder & CTO at VP Software

Trusted solution
Join the teams optimizing their tests with Knapsack Pro.

Case study
See what our customers did with Knapsack Pro.

Auto balancing 7 hours tests between 100 parallel jobs on CI - Buildkite example

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