Software Alternatives & Startups

Public API VS JSON Server

Compare Public API VS JSON Server and see what are their differences

Public API

Discover, compare, and integrate public APIs using real-time health monitoring, OpenAPI documentation, and live availability signals.

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Rating
0 reviews
JSON Server

Get a full fake REST API with zero coding in less than 30 seconds. For front-end developers who need a quick back-end for prototyping and mocking

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0 reviews

Which is more popular?

Based on our record, JSON Server seems to be more popular. It has been mentioned 45 times since March 2021.

social mentions
0 vs 45
Developer Tools popularity
41% vs 59%
alternatives listed
13 vs 62

Base details

Website, pricing, platforms and company facts side by side.

PAP
Public API
JSON Server
Website public-api.org github.com
Listed in

Features and specs

What each product offers, as listed by its team.

PAP
Public API 5 features
JSON Server 5 features
  • Free to Use
    Public API is completely free, making it accessible to developers of all levels without any financial barrier to entry. This is particularly beneficial for hobbyists, students, and those working on personal projects.
  • Comprehensive Directory
    The platform provides a well-organized directory of hundreds of free public APIs across numerous categories such as animals, finance, weather, games, and more, making it easy to discover useful APIs for various projects.
  • Simple and Clean Interface
    The website offers a straightforward, easy-to-navigate interface that allows developers to quickly browse, search, and filter APIs by category, HTTPS support, CORS availability, and authentication requirements.
  • Open Source
    The project is open source, meaning the community can contribute to it, suggest new APIs, report issues, and help maintain the directory, ensuring it stays up-to-date and relevant.
  • Useful Metadata
    Each API listing includes helpful metadata such as whether it supports HTTPS, requires authentication, and supports CORS, which helps developers quickly assess if an API meets their technical requirements before diving deeper.

Possible disadvantages

  • No Quality Assurance
    The platform acts as a directory and does not verify or guarantee the reliability, uptime, or quality of the listed APIs. Some APIs may be outdated, broken, or poorly maintained without any indication on the listing.
  • Limited API Details
    The listings provide only basic information about each API. Developers often need to visit the actual API documentation separately to understand endpoints, rate limits, response formats, and other critical details.
  • Outdated Listings
    Some APIs listed on the platform may no longer be active or may have changed their terms, endpoints, or availability. The directory doesn't always reflect the current status of every listed API in real time.
  • No User Reviews or Ratings
    The platform lacks a community feedback system such as user reviews, ratings, or usage statistics, making it harder for developers to gauge the real-world reliability and usefulness of a listed API before committing to it.
  • Limited Search and Filtering
    While basic category browsing is available, the search and filtering capabilities are relatively limited compared to more advanced API marketplaces. There is no ability to filter by popularity, response speed, or data format, for example.
  • Ease of Setup
    JSON Server can be set up quickly with minimal configuration, making it ideal for prototyping and rapid development. It allows developers to have a fully functioning REST API within minutes.
  • RESTful API
    It provides a standard RESTful API out of the box, allowing developers to perform all CRUD operations. This is helpful for simulating a real-world server while testing client-side applications.
  • Customization
    JSON Server supports middlewares, routes, and custom rules, allowing developers to customize the behavior and structure of the API to better suit their needs.
  • Fakes Backend Data
    It's great for simulating backend responses without needing a real backend setup, useful in front-end development to test components and interactions.
  • Lightweight
    As a lightweight server, it requires fewer resources and is quite simple compared to setting up a full-fledged backend server.

Possible disadvantages

  • Not for Production
    JSON Server is designed for development and testing. It is not suitable for production use due to performance limits and lack of robust security features.
  • Limited Functionality
    While JSON Server is great for basic CRUD operations, it lacks advanced features like authentication, authorization, and complex querying.
  • Data Persistence
    Data is stored in a JSON file, and while this is convenient for testing, it is not suitable for applications that require persistent and scalable data storage.
  • In-memory Limitations
    Being an in-memory server, it may have issues with handling large datasets or complex data structures efficiently.
  • Manual Data Reset
    Any changes made to the JSON file while the server is running require manual resets or reloads to reflect in the API, which can be cumbersome during continuous development cycles.

Analysis

An editorial look at what each product does well and who it suits.

PAP
Public API
JSON Server

Overall verdict

  • Public API (public-api.org) is a useful directory and aggregator site that helps developers discover free and public APIs across many categories, but it is a curation/listing service rather than an API provider itself, so its value depends on the quality and reliability of the third-party APIs it links to.

Why this product is good

  • Offers a centralized, searchable directory of numerous free and public APIs across diverse categories
  • Saves developers time by aggregating API options instead of searching individually across the web
  • Often includes brief descriptions, categories, and links to documentation for quick evaluation
  • Useful for discovering lesser-known or niche APIs that might not be found through mainstream searches
  • Generally free to browse and use as a discovery tool

Recommended for

  • Developers looking to quickly find free or public APIs for a project
  • Students and hobbyists exploring API integration for learning purposes
  • Startups seeking cost-effective third-party API options during early development
  • Researchers or hackathon participants needing rapid access to varied data sources
  • Anyone wanting a starting point for API discovery rather than a guaranteed production-grade API provider

No analysis of JSON Server yet.

Videos

Walkthroughs and reviews on video.

PAP
Public API 0 videos + Add
JSON Server 1 video + Add

No Public API videos yet. You could help us improve this page by suggesting one.

Angular CRUD with Web API Tutorial Part #3 - Setup Local JSON Server and Mock API Endpoints

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
PAP
Public API
JSON Server
41% 41%
59% 59%
0% 0%
100% 100%
49% 49%
51% 51%
26% 26%
74% 74%

User comments

Share your experience with using Public API and JSON Server. For example, how are they different and which one is better?

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

PAP
Public API 0 mentions
JSON Server 45 mentions

Tracking Public API since Jan 2026.

  • Building a CRUD app with React Query, TypeScript, and Axios
    We'll be using json-server to create the REST API that we'll fetch data from. In the root of the project, create a db.json file with the contents. - Source: dev.to / over 2 years ago
  • Full Stack To Do list, a step-by-step tutorial
    Our backend will be little more than a two-way translation layer between the database and the user interface (UI). Later in this post we will identify other responsibilities of a backend but our implementation will be kept simple to... - Source: dev.to / over 3 years ago
  • Improve Frontend-Backend development harmony with JSON-Server
    JSON-Server creates fake REST API with a minimum amount of configuration, it provides a simple way to create mock RESTful APIs and easily define the required endpoints, allows easy definition of the data schema in a JSON file and can... - Source: dev.to / over 3 years ago

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Alternatives to Public API and JSON Server

When comparing Public API and JSON Server, you can also consider the following products.