Comparison

Fiddler vs Insomnia

On the evidence we track, Insomnia leads this comparison with a composite score of 62/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Fiddler full profile →Insomnia full profile →

Machine formatsJSON Markdown GraphQLor send Accept: application/json

Fiddler49

★Insomnia62

Attribute comparison across 2 tools
Attribute	Fiddler	InsomniaLeader
Vioscale score	49 / 100medium · 60%updating	62 / 100high · 76%updating
Pricing
Free tierpricing.free_tier	✓	✓
Modelpricing.model	freemium	freemium
Price levelpricing.price_level	low	low
Transparentpricing.transparent	✗	✗
Integrations
Countintegrations.count	-	8
Security
Disclosure policysecurity.disclosure_policy	✓	-
Scorecardsecurity.scorecard	-	8.8
Soc2security.soc2	✓	✓
Vulnerabilitiessecurity.vulnerabilities	-	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=insomnia-importers&per_page=100 · Last 12m: 0
Reliability
Status pagereliability.status_page	✓	✓
Adoption
Dependent reposadoption.dependent_repos	-	91
Github starsadoption.github_stars	-	39,956
Stackoverflow questionsadoption.stackoverflow_questions	-	900
Activity
Commits last 30dactivity.commits_last_30d	-	81
Release
Cadence daysrelease.cadence_days	-	6
Historyrelease.history	-	20 items
License
Spdxlicense.spdx	-	Apache-2.0
Language
Primarylanguage.primary	-	TypeScript
Market
Availabilitymarket.availability	-	Available worldwide · Popular in US
Content
Faqcontent.faq	-	8 items

Score

Vioscale score

Fiddler49 / 100medium · 60%updating

Insomnia62 / 100high · 76%updating

Pricing

Free tier

Fiddler✓

Insomnia✓

Model

Fiddlerfreemium

Insomniafreemium

Price level

Fiddlerlow

Insomnialow

Transparent

Fiddler✗

Insomnia✗

Integrations

Count

Fiddler–

Insomnia8

Security

Disclosure policy

Fiddler✓

Insomnia–

Scorecard

Fiddler–

Insomnia8.8

Soc2

Fiddler✓

Insomnia✓

Vulnerabilities

Fiddler–

InsomniaCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=insomnia-importers&per_page=100 · Last 12m: 0

Reliability

Status page

Fiddler✓

Insomnia✓

Adoption

Dependent repos

Fiddler–

Insomnia91

Github stars

Fiddler–

Insomnia39,956

Stackoverflow questions

Fiddler–

Insomnia900

Activity

Commits last 30d

Fiddler–

Insomnia81

Release

Cadence days

Fiddler–

Insomnia6

History

Fiddler–

Insomnia20 items

License

Spdx

Fiddler–

InsomniaApache-2.0

Language

Primary

Fiddler–

InsomniaTypeScript

Market

Availability

Fiddler–

InsomniaAvailable worldwide · Popular in US

Content

Faq

Fiddler–

Insomnia8 items

Capabilities

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

Capability comparison for API Development Tools
Capability	Fiddler	Insomnia
Core
REST client	✓	✓
GraphQL support	-	✓
gRPC support	-	✓
Design
Mock servers	✓	✓
Testing
Automated / contract testing	-	✓
Collaboration
Team collaboration & sharing	-	✓
Docs
Doc generation	-	✓
Standards
OpenAPI / spec import	-	✓
Ops
CI integration / CLI	✓	✓

Core

REST client

Fiddler✓

Insomnia✓

GraphQL support

Fiddler-

Insomnia✓

gRPC support

Fiddler-

Insomnia✓

Design

Mock servers

Fiddler✓

Insomnia✓

Testing

Automated / contract testing

Fiddler-

Insomnia✓

Collaboration

Team collaboration & sharing

Fiddler-

Insomnia✓

Docs

Doc generation

Fiddler-

Insomnia✓

Standards

OpenAPI / spec import

Fiddler-

Insomnia✓

Ops

CI integration / CLI

Fiddler✓

Insomnia✓

What each one is

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

Fiddler

A web debugging proxy that captures, inspects, and modifies HTTP/HTTPS traffic to help developers troubleshoot application problems when logs across systems are conflicting or unclear

Independently observed

Insomnia

Leader

A desktop and cloud-based development tool that enables teams to build, test, and debug APIs with support for REST, GraphQL, and gRPC. Includes API design workflows, mocking servers, automated testing capabilities, and integrates with Kong Konnect for API governance and discovery.

Independently observed

Pricing

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

Fiddler

Free tier

as of 2026-08-14verify ↗

Insomnia

Leader

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 2026-08-05verify ↗

Platform & deployment

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

Platform and deployment support comparison
Supports	Fiddler	Insomnia
WebPlatforms	✗	✓
macOSPlatforms	✓	✓
WindowsPlatforms	✓	✓
LinuxPlatforms	✓	✗
CLIPlatforms	✗	✓
Cloud / SaaSDeployment	✓	✓
Self-hostedDeployment	✗	✓
HybridDeployment	✗	✓

Platforms

Web

Fiddler✗

Insomnia✓

macOS

Fiddler✓

Insomnia✓

Windows

Fiddler✓

Insomnia✓

Linux

Fiddler✓

Insomnia✗

CLI

Fiddler✗

Insomnia✓

Deployment

Cloud / SaaS

Fiddler✓

Insomnia✓

Self-hosted

Fiddler✗

Insomnia✓

Hybrid

Fiddler✗

Insomnia✓

Integrations

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

Fiddler

Not documented yet.

Insomnia

Leader

8 total

Kong Konnect
Google
GitHub
Microsoft
HashiCorp Vault
Azure Key Vault
AWS Secrets Manager
GCP Secret Manager

Independently observed

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