Grafana k6
Grafana k6 is a load-testing tool for Linux that supports load, stress, browser-based, distributed, and API testing.
What Grafana k6 is
Grafana k6 is a load-testing tool for Linux that supports load, stress, browser-based, distributed, and API testing. It can be self-hosted, and deployment options include both models. Its observability features include OpenTelemetry support, service maps, tail-based sampling, network visibility, and application tracing. Logging capabilities include pipelines, structured parsing, live tailing, and archive export; logs are retained for 30 days. Profiling covers CPU, memory, and threads, with both profiling modes available. Kernel profiling is not supported. Supported languages include C/C++, Go, Rust, Zig, Java, .NET, Python, Ruby, PHP, Node.js, and Perl. The Free plan costs nothing and is limited to 500 virtual user hours per month. Pro costs $19 a month as a platform fee, then uses pay-as-you-go pricing; it lists 500 virtual user hours per month and 8×5 email support. Pro usage offers automatic volume discounts. Enterprise lists one million concurrent virtual users and a $25,000 minimum annual commit. A 14-day trial is listed.
Good
- Supports load, stress, browser, distributed, and API testing.
- Includes OpenTelemetry support and service maps.
- Offers CPU, memory, and thread profiling.
- Supports a broad list of programming languages.
Watch out
- Free plan is limited to 500 virtual user hours monthly.
- Kernel profiling is not supported.
- Pro adds a $19 a month platform fee.
Who it suits
Grafana k6 suits teams running load or API tests on Linux and those looking for tracing, logging, or profiling features. Its listed language support covers a range of development stacks.
Verdict
Grafana k6 combines varied testing modes with tracing, logging, and profiling capabilities. The Free plan has a monthly usage cap, while Pro adds a platform fee plus usage pricing.
Plans and prices
From Grafana k6's own pricing page, checked 21 Sep 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | 500 virtual user hours per month · Limited to 500 virtual user hours per month |
| Pro | $19 a month | 500 virtual user hours per month · 8×5 email support · Platform fee of $19 per month; then pay as you go |
| Pro usage | Priced on request | Automatic volume discounts |
| Pro usage | — | Automatic volume discounts |
| Enterprise | Priced on request | 1 million concurrent virtual users · $25,000 minimum annual commit |
| Enterprise | — | 1 million concurrent virtual users · $25,000 minimum annual commit |
The facts
Each one read from Grafana k6's own pages, with the date it was checked.
The company
- Founded
- 2014checked 28 Sep 2026
- Headquarters
- New York, New York, USAchecked 28 Sep 2026
Money
- Free plan
- Yeschecked 21 Sep 2026
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