Comparison

Insomnia vs Scalar

No clear leader: Scalar (63.2) and Insomnia (63.0) are within the 5-point margin; treat as a tie. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
Insomnia63
Scalar63
Score
vioscaleAI score
Insomnia63 / 100high · 75%
Scalar63 / 100medium · 70%
Pricing
Free tier
Insomnia✓
Scalar✓
Model
Insomniafreemium
Scalarfreemium
Price level
Insomnialow
Scalarhigh
Starting price
Insomnia–
Scalar$150
Transparent
Insomnia✗
Scalar✓
Integrations
Count
Insomnia2
Scalar4
Reliability
Status page
Insomnia✓
Scalar✓
Adoption
Dependent repos
Insomnia91
Scalar1
Github stars
Insomnia40,046
Scalar16,253
Package downloads weekly
Insomnia–
Scalar1,422,867
Stackoverflow questions
Insomnia900
Scalar–
Activity
Commits last 30d
Insomnia53
Scalar100
Release
Cadence days
Insomnia6
Scalar3
History
Insomnia20 items
Scalar20 items
License
Spdx
InsomniaApache-2.0
ScalarMIT
Language
Primary
InsomniaTypeScript
Content
Faq
Insomnia8 items
Scalar7 items

Capabilities

Feature-by-feature on the axes that matter for api development tools. “-” means undocumented, not absent.

Core
REST client
Insomnia✓
Scalar✓
GraphQL support
Insomnia✓
Scalar✓
gRPC support
Insomnia✓
Scalar✓
Design
Mock servers
Insomnia✓
Scalar✓
Testing
Automated / contract testing
Insomnia✓
Scalar✓
Collaboration
Team collaboration & sharing
Insomnia✓
Scalar✓
Docs
Doc generation
Insomnia✓
Scalar✓
Standards
OpenAPI / spec import
Insomnia✓
Scalar✓
Ops
CI integration / CLI
Insomnia✓
Scalar✓

What each one is

The product in its own terms, so the numbers below have context.

Insomnia

An open-source application for designing, testing, and managing APIs across REST, GraphQL, gRPC, WebSockets and other HTTP protocols, with flexible local, cloud, and git-based storage options.

Independently observed

Scalar

A platform that creates API documentation, type-safe client libraries, and AI-ready tools from OpenAPI documents, ensuring all developer interfaces stay synchronized as APIs evolve.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Insomnia

from $12/moSubscriptionFree tier14-day trial

Free tier with unlimited projects and Git Sync. Pro from $12/user/mo. Enterprise from $45/user/mo with contact sales for 50+ users.

  • EssentialsFree
    • Unlimited Git Sync projects for small teams
    • Unlimited Cloud/Local projects
    • Inso CLI access for CI/CD
    • Unlimited collection runs
    • Unlimited environments
    • +4 more
  • Pro$12/user/mo (15% savings annually)
    • Everything in Essentials
    • Unlimited users
    • Git Sync for all users
    • Unlimited organizations
    • Role-based access control (RBAC)
    • +1 more
  • EnterpriseContact sales
    • Everything in Pro
    • Native Kong Konnect integration
    • SSO (SAML/OIDC) and SCIM
    • Mandate data storage location
    • Domain capture and invite control
    • +6 more
as of verify ↗

Scalar

from $150/moSubscriptionFree tier

Free tier available. From $150/month for Pro or $600/month for Business, with yearly billing discounts (2 months free).

  • FreeFree
    • Hosted OpenAPI docs
    • Built-in API client
    • Landing pages
    • 1 editor seat
  • Pro$150/month or $125/month billed yearly ($1,500/year)
    • Hosted MCP servers
    • 5 editor seats
    • Access groups included
    • Volume discounts available
  • Business$600/month or $500/month billed yearly ($6,000/year)
    • SSO and subpath hosting
    • 10 editor seats
    • Volume discounts available
  • EnterpriseContact sales
    • Unlimited APIs and custom SDK sizes
    • Priority support and SLAs
    • SDK and MCP migration services
    • Dedicated Slack/Teams channel
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Insomnia✗
Scalar✓
macOS
Insomnia✓
Scalar✓
Windows
Insomnia✓
Scalar✓
Linux
Insomnia✓
Scalar✓
CLI
Insomnia✓
Scalar✓
Deployment
Cloud / SaaS
Insomnia✓
Scalar✓
Self-hosted
Insomnia✓
Scalar✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

In common (1)
  • GitHub

Insomnia

9 total - 8 not shared
  • Kong Konnect
  • Google
  • Microsoft
  • HashiCorp Vault
  • Azure Key Vault
  • AWS Secrets Manager
  • GCP Secret Manager
  • Spectral
Independently observed

Scalar

12 total - 11 not shared
  • Agent
  • FastAPI
  • ASP.NET Core
  • Hono
  • Elysia
  • Hapi
  • Docker
  • Docusaurus
  • Vercel AI SDK
  • OpenAI Agents SDK
  • Anthropic Claude Agent SDK
Independently observed
Still deciding?

Insomnia or Scalar: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.