What is the difference between Insomnia and Apidog?

Insomnia is best for Developers wanting a lightweight REST and GraphQL client, while Apidog is best for API teams wanting an all-in-one API development platform. Insomnia starts at Free and Apidog starts at Free.

Is Insomnia or Apidog cheaper?

Insomnia starts at Free with a free tier. Apidog starts at Free with a free tier.

Is there a free alternative to Apidog?

Both Insomnia and Apidog offer free tiers.

Insomnia vs Apidog

Insomnia is Open-source API client for REST, GraphQL, and gRPC with environment variables and plugin support, while Apidog is all-in-one platform for API design, debugging, testing, documentation, and mocking. Insomnia is open source and can be self-hosted, giving you full control over your data. Insomnia is built for developers wanting a lightweight rest and graphql client, whereas Apidog targets api teams wanting an all-in-one api development platform.

At a glance

	Insomnia	Apidog
Best for	Developers wanting a lightweight REST and GraphQL client	API teams wanting an all-in-one API development platform
Starting price	Free	Free
Free tier	✓	✓
Open source	✓	—
Free tier available	✓	✓
Open source	✓	—
API Design	—	✓
Automation	—	✓
Debugging	—	✓
GraphQL	✓	—
Mock Server	—	✓
Plugins	✓	—
REST	✓	—
gRPC	✓	—

Insomnia

Strengths

Open source and transparent
Includes REST as a core feature, purpose-built for api development workflows
Fully open-source — you can self-host, audit the code, and avoid vendor lock-in
Free for individuals — generous enough for most small teams to get real work done

Weaknesses

Free plan exists but key features are locked behind the paid upgrade
Fewer built-in features means you may need additional tools to cover gaps
Ecosystem of third-party integrations is smaller than the market leaders in api development
Community support can be slower than the dedicated support teams at commercial alternatives

Try Insomnia → Full review

Apidog

Strengths

Includes API Design as a core feature, purpose-built for api development workflows
Includes Debugging as a core feature, purpose-built for api development workflows
Free for 3 users — generous enough for most small teams to get real work done
Includes mock server alongside the core feature set — fewer separate tools needed

Weaknesses

Free plan exists but key features are locked behind the paid upgrade
Developer-oriented tooling may not suit non-technical team members
Ecosystem of third-party integrations is smaller than the market leaders in api development
Limited team/admin features if your organization eventually scales up

Try Apidog → Full review

The bottom line

Pricing: Both tools offer free tiers, so you can test each before committing. Insomnia's free plan: Free for individuals. Apidog's free plan: Free for 3 users.

Feature gaps: Insomnia offers GraphQL, Plugins and REST that Apidog lacks. Apidog brings API Design, Automation and Debugging that Insomnia does not have.

Team fit: Insomnia is geared toward individual users and small setups, while Apidog is aimed at small teams teams. Pick the one that matches where your team is today and where it is headed — migrating tools later is always painful.

Open source: Insomnia is open source, meaning you can self-host, audit the code, and avoid vendor lock-in. Apidog is proprietary — you are trusting the vendor with your data and uptime.

Where each tool shines: Insomnia's biggest strengths are: open source and transparent. includes rest as a core feature, purpose-built for api development workflows. Apidog's biggest strengths are: includes api design as a core feature, purpose-built for api development workflows. includes debugging as a core feature, purpose-built for api development workflows.

Watch out for: With Insomnia, users commonly note that free plan exists but key features are locked behind the paid upgrade. With Apidog, the main complaint is that free plan exists but key features are locked behind the paid upgrade.

Choose Insomnia if...

Your profile matches its sweet spot: developers wanting a lightweight rest and graphql client
You need self-hosting, data sovereignty, or the ability to audit source code
You specifically need GraphQL and Plugins
You care about includes rest as a core feature, purpose-built for api development workflows
Your team size fits the individuals profile Insomnia is designed for

Choose Apidog if...

You need a tool built for api teams wanting an all-in-one api development platform
You specifically need API Design and Automation
You care about includes debugging as a core feature, purpose-built for api development workflows
Your team size fits the small teams profile Apidog is designed for
The free tier works for you: free for 3 users