Is SwiftLinkPreview still maintained in 2024?

No, the repository was archived in 2025, indicating it is no longer actively maintained or updated by the developer, so it's not recommended for new projects.

How do I cache link previews with SwiftLinkPreview?

SwiftLinkPreview provides an in-memory cache by default; enable it by passing InMemoryCache() during initialization. You can also implement a custom cache using the Cache protocol for more control.

SwiftLinkPreview vs using an AI service for link previews?

SwiftLinkPreview is a local, rule-based scraper that works offline once cached, while AI services might offer better accuracy and context but require API keys and network calls. However, the README notes AI integration now performs better.

Does SwiftLinkPreview support SwiftUI?

Yes, as a Swift library, it can be integrated into SwiftUI projects by fetching preview data in view models or using Combine to update UI, though it's not specifically designed for SwiftUI.

What are the best alternatives to SwiftLinkPreview for iOS?

Consider active forks of this library, third-party APIs like Open Graph scanners, or AI-based services for more reliable previews. Native options include building custom solutions with URLSession and parsing meta tags.

How to handle errors when a preview fails in SwiftLinkPreview?

Use the onError callback in the preview method to catch errors; implement fallback strategies like showing default UI or retrying with different URLs, as some sites may not be supported.

Open-Awesome

SwiftLinkPreview

MITSwift3.4.0

A Swift library for generating link previews (title, description, images) from URLs on Apple platforms.

Visit Website GitHub

1.4k stars197 forks0 contributors

What is SwiftLinkPreview?

SwiftLinkPreview is a Swift library that generates link previews by extracting metadata from URLs. It fetches information such as titles, descriptions, images, and videos from web pages, allowing developers to display rich preview cards within their apps. It solves the problem of manually parsing web pages or relying on external APIs for link preview functionality.

Target Audience

iOS, macOS, watchOS, and tvOS developers who need to display link previews in their applications, such as in chat apps, social feeds, or content browsers.

Value Proposition

Developers choose SwiftLinkPreview because it's a native Swift solution with no external dependencies, supports all Apple platforms, and offers features like cancellable requests, customizable caching, and automatic URL unshortening.

Overview

It makes a preview from an URL, grabbing all the information such as title, relevant texts and images.

Use Cases

Best For

Adding link previews to chat or messaging applications
Displaying URL previews in social media or news feed apps
Enhancing content browsers with rich metadata displays
Building apps that need to show website summaries without full web views
Implementing custom cache strategies for link preview data
Supporting multiple Apple platforms (iOS, macOS, watchOS, tvOS) with a single library

Not Ideal For

Projects requiring ongoing maintenance and updates, as the repository is archived and no longer actively developed.
Apps with strict App Transport Security policies that cannot enable 'Allow Arbitrary Loads' for security reasons.
Teams looking to integrate AI-powered link analysis for more accurate or contextual previews.
Applications needing server-side link preview generation to offload processing from client devices.

Pros & Cons

Pros

Multi-Platform Compatibility

Supports iOS, macOS, watchOS, and tvOS, providing a unified native Swift solution across the Apple ecosystem without external dependencies.

Comprehensive Metadata Extraction

Fetches titles, descriptions, images, videos, icons, and prices from URLs, enabling rich preview cards similar to those in messaging apps.

Flexible Caching System

Includes a built-in in-memory cache and allows custom cache implementations via a protocol, optimizing performance for repeated requests.

Cancellable Network Requests

Supports cancellation of preview requests, which is useful for managing network operations in responsive user interfaces.

Cons

Archived and Unmaintained

The project is archived as of 2025, meaning no future updates, bug fixes, or support, making it risky for new or long-term projects.

Security Configuration Required

Requires setting 'Allow Arbitrary Loads' to YES in Info.plist, which can be a security concern and adds complexity to app configuration.

Reliability Limitations

As noted in the Tips section, not all websites will have their info fetched correctly, leading to incomplete or missing previews that require manual handling.

Frequently Asked Questions

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