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Embedded IOT DevUnclaimed

FreeRTOS

A real-time operating system designed for microcontroller-based embedded devices

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Vendor
Amazon Web Services
Also known as
freertos

What is FreeRTOS?

An open-source real-time operating system designed for resource-constrained microcontrollers and small processors. Offers kernel with multiprocessing, integrated TCP/IP networking with IPv6, and security-validated connectivity libraries for cloud integration.

Independently observed

FreeRTOS pricing

Plans, per-tier features and add-ons, dated and linked to live pricing. Pricing changes often; always verify at source before you rely on it.

Pricing as of verify at live pricing ↗Independently observed
Open sourceFree tier

Free (MIT license); commercial support available via OpenRTOS

FreeRTOS

Free
Free

Open-source under MIT license

OpenRTOS

Contact sales
Contact sales

Commercially licensed version with support from WITTENSTEIN high integrity systems

What FreeRTOS does

The capabilities that matter for embedded iot dev, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.

Capabilities
Target class
Microcontroller/RTOS
Rtos type
Preemptive
Low power support
-
Tls dtls stack
✓
Ota updates
✓
Device management console
✓
Device provisioning
✓
Open source
✓
PSA certified
✓
Rust support
-
Independently observed

Platform & deployment

Independently observed
Deployment
  • Self-hosted

Integrations (9)

Independently observed
cloud
  • AWS IoT⇄•
  • AWS IoT Device Shadow
  • AWS IoT Jobs
  • AWS IoT Device Defender
  • AWS IoT Fleet Provisioning
  • AWS IoT OTA
  • MbedTLS
  • WolfSSL
  • Percepio Tracealyzer

Security & compliance

Known vulnerabilities: 0 (0 in the last 12 months) sourcea count reflects scale & disclosure, not quality

FreeRTOS FAQ

Common questions about FreeRTOS, answered from independent, dated evidence.

What is FreeRTOS?

An open-source real-time operating system designed for resource-constrained microcontrollers and small processors. Offers kernel with multiprocessing, integrated TCP/IP networking with IPv6, and security-validated connectivity libraries for cloud integration. It is indexed under Embedded IOT Dev.

Source: https://freertos.org

Is FreeRTOS free to use?

FreeRTOS is open source, so it can be self-hosted and used at no licence cost. It is released under the MIT licence. Paid editions are also offered: OpenRTOS, priced on request. Pricing changes often, so verify at source before relying on it.

Source: https://freertos.org

Can FreeRTOS be self-hosted?

Yes. FreeRTOS can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.

Source: https://freertos.org

What does FreeRTOS integrate with?

We have confirmed 8 integrations for FreeRTOS, including AWS IoT Device Shadow, AWS IoT Jobs, AWS IoT Device Defender, AWS IoT Fleet Provisioning, AWS IoT OTA, MbedTLS, WolfSSL and Percepio Tracealyzer. This is what we could verify from public sources, so the vendor may support others we have not indexed.

Source: https://freertos.org

Is FreeRTOS open source?

Yes. FreeRTOS is published under the MIT licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.

Source: https://github.com/freertos/FreeRTOS

FreeRTOS alternatives

Other embedded iot dev we track, ranked by the same independent score.

All FreeRTOS alternatives, ranked →

Compare FreeRTOS

Side by side against other embedded iot dev, attribute by attribute, with a source on every value.

Independent · unbought · dated

The vioscaleAI score: one lens on the evidence

Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for FreeRTOS, not the verdict.

Balanced composite 43 / 100
low · 29%
Signal contributions to the composite score
SignalScoreWeightContributionEvidence
Capabilities810.086.7✓
Release cadence540.073.6✓
Stars740.032.4✓
Development activity150.121.8✓
Integrations270.051.5✓
Dependent projects00.080.0✓
Security posture00.090.0-
Package downloads00.170.0-
Security score00.050.0-
Developer Q&A activity00.080.0-

Computed . Re-weight it by intent, or see the full method.

All data & sourcesshow ↓

Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.

Activity

AttributeValueEvidence
Commits last 30d2mediumsource · 2026-09-07 · 65%

Adoption

AttributeValueEvidence
Github stars7,861highsource · 2026-10-05 · 90%
Dependent repos0highsource · 2026-10-05 · 85%

Content

AttributeValueEvidence
Faq5 itemsmediumsource · 2026-09-10 · 67%

Features

AttributeValueEvidence
CapabilitiesRtos type: preemptive · Open source: Yes · Ota updates: Yes · Target class: microcontroller/RTOS · Psa certified: Yes · Tls dtls stack: Yesmediumsource · 2026-10-05 · 60%

Integrations

AttributeValueEvidence
Count8mediumsource · 2026-08-21 · 60%

Language

AttributeValueEvidence
PrimaryChighsource · 2026-10-05 · 90%

License

AttributeValueEvidence
SpdxMIThighsource · 2026-10-05 · 95%

Pricing

AttributeValueEvidence
Free tierYesmediumsource · 2026-10-05 · 60%
Price levelfreemediumsource · 2026-10-05 · 60%
Modelopen_sourcemediumsource · 2026-10-05 · 60%

Release

AttributeValueEvidence
Cadence days83mediumsource · 2026-10-05 · 70%
History14 itemsmediumsource · 2026-10-05 · 70%

Security

AttributeValueEvidence
VulnerabilitiesCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2FFreeRTOS%2FFreeRTOS&per_page=100 · Last 12m: 0highsource · 2026-10-05 · 90%
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Last updated . Canonical URI: https://www.vioscale.ai/software/freertos.