Comparison

json-server vs Mockoon

On the evidence we track, json-server leads this comparison with a composite score of 82/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

json-server full profile →Mockoon full profile →

Machine formatsJSON Markdown GraphQLor send Accept: application/json

★json-server82

Mockoon71

Attribute comparison across 2 tools
Attribute	json-serverLeader	Mockoon
Vioscale score	82 / 100medium · 57%	71 / 100medium · 74%
Pricing
Free tierpricing.free_tier	✓	✓
Modelpricing.model	commercial	freemium
Price levelpricing.price_level	free	high
Transparentpricing.transparent	✓	✓
Integrations
Countintegrations.count	-	8
Security
Disclosure policysecurity.disclosure_policy	-	✓
Scorecardsecurity.scorecard	3.6	-
Vulnerabilitiessecurity.vulnerabilities	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=json-server&per_page=100 · Last 12m: 0	-
Reliability
Sla pctreliability.sla_pct	-	99.9
Status pagereliability.status_page	-	✓
Adoption
Dependent reposadoption.dependent_repos	85,674	-
Github starsadoption.github_stars	75,690	-
Release
Cadence daysrelease.cadence_days	6	-
Historyrelease.history	20 items	-
License
Spdxlicense.spdx	MIT	-
Language
Primarylanguage.primary	JavaScript	-
Market
Availabilitymarket.availability	-	Available worldwide · Popular in US, EU

Score

Vioscale score

json-server82 / 100medium · 57%

Mockoon71 / 100medium · 74%

Pricing

Free tier

json-server✓

Mockoon✓

Model

json-servercommercial

Mockoonfreemium

Price level

json-serverfree

Mockoonhigh

Transparent

json-server✓

Mockoon✓

Integrations

Count

json-server–

Mockoon8

Security

Disclosure policy

json-server–

Mockoon✓

Scorecard

json-server3.6

Mockoon–

Vulnerabilities

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

Mockoon–

Reliability

Sla pct

json-server–

Mockoon99.9

Status page

json-server–

Mockoon✓

Adoption

Dependent repos

json-server85,674

Mockoon–

Github stars

json-server75,690

Mockoon–

Release

Cadence days

json-server6

Mockoon–

History

json-server20 items

Mockoon–

License

Spdx

json-serverMIT

Mockoon–

Language

Primary

json-serverJavaScript

Mockoon–

Market

Availability

json-server–

MockoonAvailable worldwide · Popular in US, EU

Capabilities

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

Capability comparison for API Mocking
Capability	json-server	Mockoon
Capabilities
Mocking mode	-	-
Stateful scenarios	-	-
Fault chaos injection	-	-
Openapi import	-	-
Proxy passthrough	-	-
Admin API	-	-
Deployment	-	-
Legacy protocol virtualization	-	-
Collaboration sharing	-	-
Ci cd integration	-	-
Open source	-	-
Market segment	-	-
Pricing model	-	-

Capabilities

Mocking mode

json-server-

Mockoon-

Stateful scenarios

json-server-

Mockoon-

Fault chaos injection

json-server-

Mockoon-

Openapi import

json-server-

Mockoon-

Proxy passthrough

json-server-

Mockoon-

Admin API

json-server-

Mockoon-

Deployment

json-server-

Mockoon-

Legacy protocol virtualization

json-server-

Mockoon-

Collaboration sharing

json-server-

Mockoon-

Ci cd integration

json-server-

Mockoon-

Open source

json-server-

Mockoon-

Market segment

json-server-

Mockoon-

Pricing model

json-server-

Mockoon-

What each one is

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

json-server

Leader

An open-source tool that generates a full-featured REST API server from a JSON or JSON5 file, enabling rapid prototyping and testing without backend development.

Independently observed

Mockoon

A tool for creating and testing mock REST APIs with an intuitive desktop interface, command-line tools, and cloud collaboration options. It supports advanced features like dynamic templating, request rules, webhooks, and serverless deployment.

Independently observed

Pricing

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

json-server

Leader

Open sourceFree tier

Free, open-source

as of 2026-08-17verify ↗

Mockoon

from $100/moHybridFree tier14-day trial

Free open-source desktop and CLI. Team plan from $100/month (annual). Enterprise with custom pricing.

Team$100/month billed annually (saves 30% vs monthly)
- All open-source features (unlimited mocking, CLI, OpenAPI support, webhooks, serverless compatibility)
- Cloud deployment and hosting
- Web application access
- Real-time team collaboration
- Cloud data synchronization across devices
- +5 more
EnterpriseContact sales
- All Team plan features
- Custom quotas and limits
- Optional dedicated instances
- Custom cloud region selection
- Enterprise-grade support with custom SLA
- +3 more

as of 2026-08-18verify ↗

Platform & deployment

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

Platform and deployment support comparison
Supports	json-server	Mockoon
WebPlatforms	✓	✓
macOSPlatforms	✗	✓
WindowsPlatforms	✗	✓
LinuxPlatforms	✗	✓
CLIPlatforms	✓	✓
Cloud / SaaSDeployment	✗	✓
Self-hostedDeployment	✓	✓
On-premiseDeployment	✗	✓
HybridDeployment	✗	✓

Platforms

Web

json-server✓

Mockoon✓

macOS

json-server✗

Mockoon✓

Windows

json-server✗

Mockoon✓

Linux

json-server✗

Mockoon✓

CLI

json-server✓

Mockoon✓

Deployment

Cloud / SaaS

json-server✗

Mockoon✓

Self-hosted

json-server✓

Mockoon✓

On-premise

json-server✗

Mockoon✓

Hybrid

json-server✗

Mockoon✓

Integrations

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

json-server

Leader

Not documented yet.

Mockoon

8 total

OpenAPI
AWS Lambda
Google Cloud Functions
Firebase Functions
GitHub Actions
CircleCI
Travis CI
Docker

Independently observed

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