Best npn.dev alternatives: apps like npn.dev

10+ similar apps compared and reviewed

4.1 avg rating
10 free apps
Updated October 2026

Looking for something like npn.dev? We've analyzed 10+ similar apps to help you find the best alternative. Each app is compared by ratings, features, and real user reviews, so you can make the right choice.

Top Alternatives to npn.dev

APIOrbit – REST & GraphQL#2

APIOrbit – REST & GraphQL by Stanislav Makushov

AI-Powered API Client & Tester
Strong Contender
🛠️ Developer Tools
0.0(0 ratings)
FreeIn-App Purchases
APIOrbit – REST & GraphQL screenshot 1
APIOrbit – REST & GraphQL screenshot 2
APIOrbit – REST & GraphQL screenshot 3
APIOrbit – REST & GraphQL screenshot 4
APIOrbit – REST & GraphQL screenshot 5
APIOrbit – REST & GraphQL screenshot 6

This native client allows developers to send and test REST and GraphQL requests on iPhone and iPad. It features an AI assistant for generating code, documentation, and mock data, along with robust debugging and media preview capabilities.

More apps like npn.dev

4
API Bot
API Bot
API Bot
API calls at your fingertips
Free

This tool empowers mobile developers to build and test APIs directly on their devices. It leverages on-device machine learning to analyze API results and identify patterns, while also allowing for the creation and management of various request types and data formats.

On-device machine learning for API result analysisBuild GET, POST, PUT, DELETE requestsManage headers and data
🛠️ Developer Tools
(17)
free with in-app purchases
5
REST API Client
REST API Client
REST API Client
REST API and GraphQL Client
Free

This tool allows users to send and analyze API requests, including detailed response headers and results. It supports various request customization options like query parameters, authorization, and body content. Users can organize and search their saved requests for efficient workflow management.

Send and analyze API requestsCustomize request parameters and bodyOrganize and search saved requests
🛠️ Developer Tools
(6)
free with in-app purchases
6
HTTPWidget
HTTPWidget
HTTPWidget
HTTP Requests Dashboard
Free

Create a personalized dashboard to display data from any API, including stocks, weather, and sports scores. Save, test, and monitor HTTP requests, then visualize key information in widgets and charts. It's designed for developers but accessible to users with basic HTTP knowledge.

Personalized API dashboardSave and test HTTP requestsDisplay data in widgets and charts
🛠️ Developer Tools
(28)
free
7
ApiClient: REST API Tester
ApiClient: REST API Tester
ApiClient: REST API Tester
HTTP Client for GraphQL & cURL
Free

Test and manage REST APIs directly from your phone. Import, edit, and export Postman collections, send Firebase notifications, and format JSON requests on the go. Save API requests and responses for easy access and sharing.

Create HTTP/HTTPS requestsImport/export Postman collectionsSend Firebase notifications
🛠️ Developer Tools
(1)
free with in-app purchases
8
WorldWideWeb – Mobile
WorldWideWeb – Mobile
WorldWideWeb – Mobile
A web server for developers
Free

This mobile web server tool allows developers to test and serve HTML documents directly from their device. It simulates web environments, enabling offline development and API testing without external dependencies. Ideal for quick checks and development on the go.

Automatic refresh on file changesNo caching for direct testingEasy folder configuration
🛠️ Developer Tools
(40)
free
9
Hodor - HTTP(s) Packet Sniffer
Hodor - HTTP(s) Packet Sniffer
Hodor - HTTP(s) Packet Sniffer
Support Flutter WebSocket TCP
Free

This tool captures and rewrites HTTP, TCP, UDP, and WebSocket data traffic, including Flutter app data. It offers features like HTTPS decryption, request/response mapping, and domain filtering for efficient web debugging.

Packet capturing & rewriting (HTTP, TCP, UDP, WebSocket)Flutter app traffic captureHTTPS decryption
🛠️ Developer Tools
(23)
free with in-app purchases
10
HTTPBot: API & HTTP Client
HTTPBot: API & HTTP Client
HTTPBot: API & HTTP Client
API, MCP & WebSocket Debugger
Free

This app allows users to send HTTP/HTTPS requests and connect to WebSockets, making it easy to debug APIs on the go. It supports various response formats, collaboration features, and authentication methods, streamlining API development and testing.

Send HTTP/HTTPS and WebSocket requestsInspect JSON, HTML, and XML responsesImport/export Postman collections
🛠️ Developer Tools
(1.3K)
free with in-app purchases