vioscale
Comparison

Scalar vs Thunder Client

No leader: the top candidate Thunder Client has only 0.30 confidence (low), below the 0.35 needed to declare a winner. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

Scalar full profile →Thunder Client full profile →
Machine formatsJSONMarkdownGraphQLor send Accept: application/json
Scalar62
Thunder Client69
Score
Vioscale score
Scalar62 / 100high · 76%updating
Thunder Client69 / 100low · 30%updating
Pricing
Free tier
Scalar✓
Thunder Client✓
Model
Scalarcommercial
Thunder Clientfreemium
Price level
Scalarfree
Thunder Clientlow
Transparent
Scalar✓
Thunder Client✓
Integrations
Count
Scalar1
Thunder Client2
Security
Disclosure policy
Scalar✓
Thunder Client–
Gdpr
Scalar✓
Thunder Client✓
Soc2
Scalar✓
Thunder Client–
Vulnerabilities
Reliability
Status page
Scalar✓
Thunder Client–
Adoption
Dependent repos
Scalar1
Thunder Client–
Github stars
Scalar15,999
Thunder Client–
Package downloads weekly
Scalar824,329
Thunder Client–
Activity
Commits last 30d
Scalar100
Thunder Client–
Release
Cadence days
Scalar3
Thunder Client–
History
Scalar20 items
Thunder Client–
License
Spdx
ScalarMIT
Thunder Client–
Language
Primary
ScalarTypeScript
Thunder Client–
Market
Availability

Capabilities

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

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

What each one is

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

Scalar

An open-source platform for building API documentation sites that includes automatically generated SDKs, a browser-based API client, and API registry capabilities. Supports OpenAPI and AsyncAPI specifications.

Independently observed

Thunder Client

A lightweight API testing client for VS Code and JetBrains IDEs that stores all data locally on developers' machines and enables team collaboration through Git-based synchronization without requiring context-switching to external tools.

Independently observed

Pricing

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

Scalar

from $72/moSubscriptionFree tier

From $72/month. Free tier. SDK languages available: TypeScript, Python, C#, Java, PHP, Go, Ruby (+$100 each for Pro/Enterprise).

  • FreeFree
    • Hosted OpenAPI docs
    • Built-in API client
    • Themes
    • Unlimited viewer seats
    • 1 editor seat
  • Pro$72/month
    • Custom domains and subdomains
    • Git Sync, Markdown, and MDX support
    • API References from OpenAPI/AsyncAPI
    • Custom HTML/CSS/JS
    • Email domain access control
    • +10 more
  • EnterpriseContact sales
    • Full developer portals
    • SSO/SAML
    • Role-based access control (RBAC)
    • Priority support and SLAs
    • SDK and MCP migration services
    • +2 more
as of verify ↗

Thunder Client

from $3/moSubscriptionFree tier14-day trial

From free to $16/user/month. 14-day free trial available.

  • FreeFree
    • VS Code extension
    • Local storage
  • Starter$3/user/month billed annually
    • VS Code & JetBrains extensions
    • Team features
    • CLI & CI/CD
    • WebSocket, SSE, gRPC
    • 250 Collection Runs per user
  • Business$7/user/month billed annually
    • VS Code & JetBrains extensions
    • Team features
    • CLI & CI/CD
    • WebSocket, SSE, gRPC
    • 500 Collection Runs per user
  • Enterprise$16/user/month billed annually
    • VS Code & JetBrains extensions
    • Team features
    • CLI & CI/CD
    • WebSocket, SSE, gRPC
    • Unlimited Collection Runs
    • +6 more
as of verify ↗

Platform & deployment

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

Platforms
Web
Scalar✓
Thunder Client✗
CLI
Scalar✗
Thunder Client✓
Deployment
Cloud / SaaS
Scalar✓
Thunder Client✓
Self-hosted
Scalar✓
Thunder Client✗

Integrations

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

Scalar

1 total
  • Agent
Independently observed

Thunder Client

2 total
  • Azure
  • AWS
Independently observed

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