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Load-test
your systems.

Free powerful booter & stresser online — Layer 4 and Layer 7 stress testing for infrastructure you own. Run controlled TCP, UDP, HTTP and API load tests via dashboard or stresser API.

Operating continuously since 2024

Choose a method
for your stress test.

See how your edge handles connection pressure.

Measure connection setup, concurrent sessions, throughput, and limits across the transport layer.

Scroll, swipe, or use the up and down arrow keys to choose a method.

Choose a plan.
Start with free powerful testing.

All booter plans & stresser API pricing

Free powerful booter and stresser plans for Layer 4 and Layer 7 testing of infrastructure you own. Every plan works via dashboard; stresser API from Jade and above.

Comparison of all sunnystresser.com plans with prices, duration and concurrency limits
PlanPricePeriodLimits
Mica$0lifetime60 sec max · 1 concurrentGet
Quartz$39/month300 sec max · 2 concurrent · Normal rankGet
Amber$69/month600 sec max · 3 concurrent · Normal rankGet
Jade$99/month900 sec max · 5 concurrent · Normal rank · stresser APIGet
Garnet+$129/month1200 sec max · 7 concurrent · Normal rank · stresser APIGet
Lapis$169/month1800 sec max · 10 concurrent · VIP rank · stresser APIGet
Peridot$209/month2400 sec max · 12 concurrent · VIP rank · stresser APIGet
Citrine+$249/month3600 sec max · 15 concurrent · VIP rank · stresser APIGet
Onyx$299/month5400 sec max · 20 concurrent · VIP rank · stresser APIGet
Opal+$359/month7200 sec max · 25 concurrent · VIP rank · stresser APIGet
Cobalt$419/month10800 sec max · 30 concurrent · VIP rank · stresser APIGet
Ruby+$489/month14400 sec max · 40 concurrent · VIP rank · stresser APIGet
Sapphire$549/month18000 sec max · 50 concurrent · VIP rank · stresser APIGet
Titanium+$619/month21600 sec max · 60 concurrent · VIP rank · stresser APIGet
Obsidian$699/month28800 sec max · 70 concurrent · PRIVATE rank · stresser APIGet
Emerald+$779/month36000 sec max · 80 concurrent · PRIVATE rank · stresser APIGet
Tungsten$869/month43200 sec max · 90 concurrent · PRIVATE rank · stresser APIGet
Platinum+$959/month54000 sec max · 110 concurrent · PRIVATE rank · stresser APIGet
Amethyst$1049/month72000 sec max · 130 concurrent · PRIVATE rank · stresser APIGet
Diamond+$2499lifetime86400 sec max · 150 concurrent · PRIVATE rank · stresser APIGet
Custom$105fromConfigurable: 300–86400 sec, 1–150 concurrents, optional stresser APIGet

Before you start.
Three useful checks.

What is this booter and stresser used for?

It is an online booter and stresser for Layer 4 and Layer 7 stress testing of infrastructure you own, including TCP, UDP, HTTP and API load testing.

What does each layer measure?

Layer 4 measures transport and connection behavior. Layer 7 measures application requests and responses.

What should I test first?

Start with the part of your own system you need to understand: connections, requests, or a recent change.

Can I review the scope first?

Yes. Define the systems you control, the test limits, and the metrics to review before starting.

Does the stresser have an API?

Yes. The stresser API is available on Jade plan and above, and can be added to a custom plan.

Is there a free powerful stress testing plan?

Yes. The Mica plan is free for lifetime access with a one concurrent test limit.