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Ifrit

Super lightweight lib for fuzzy searching.

Works on iOS / macOS / Linux / Android and more:

<img src="https://raw.githubusercontent.com/ukushu/Ifrit/main/Z_Logo/Ifrit_Logo_360.png" width="150" height="150">

This repository is built upon the archived Fuse-Swift project by KRisk: https://github.com/krisk/fuse-swift

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https://github.com/ukushu/Ifrit.git
git@github.com:ukushu/Ifrit.git

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What is fuzzy Search?

A fuzzy search algorithm is designed to find approximate matches for a given search query.

Let's say you have a list of products, and a user is looking for a "Czy Swetr,". Exact match will return nothing, but the fuzzy search will find "Cozy Sweater.".

If you need exact match - you need to use standard function .filter { } instead of this library.

Demo of Fuzzy Search:

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Advanteges / Disadvantages of Ifrit

Advanteges:
+ Super lightweight
+ No dependencies
+ OS supported: MacOS(>=v10_15), iOS(>=v13), visionOS, watchOS, twOS, Linux
+ Async ( async/await + callbacks both )
+ Text highlight support (AttributedString)
+ Code covered with automated tests
+ Most of code licensed by "MIT License" 
+ Can be linked as both Static and Dynamic package — choose what works best for you

Disadvantages:
- Not tested in production
- FuzzyFind licensed by "Apache License, Version 2.0"

Difference: Ifrit VS Fuze-Swift?

- Fuze-Swift: Swift 5.1~
+ Ifrit: Swift 6.2 compatible

+ Fuze-Swift support Pods and Packages :)
- Ifrit supports only Packages :(

- Fuze-Swift is dead :(
+ 🔥🔥🔥 Ifrit is Fuse-Swift, reborn from the hells ashes! But more powerful and alive than ever! 🔥🔥🔥 :)

- Fuse-Swift supports asynchronous functions with callbacks but lacks native async/await support. :(
+ Ifrit supports callbacks and async/await both :)

- Fuze-Swift have async/multithreading issues. Crashes is possible :(
+ Ifrit is stable and crash-free!

- Fuse-Swift's async functions return incorrect results - wrong indexes. :((((
+ Ifrit's async functions return correct indexes and are fully covered with tests :)

- Fuze-Swift was written for Xcode 11 and now generates numerous warnings :(
+ Ifrit's code is updated to the latest Swift standards of 2026 year :) 
- But Ifrit still have a few build warnings :(

+ Ifrit - extended coverage with automated tests :)
+ Ifrit features an additional search system using the Levenshtein distance algorithm. :)
+ Ifrit allows searching by multiple search templates
+ Ifrit's syntax has been slightly adjusted for improved flexibility
+ Ifrit's sync search is 2% faster than Fuse's (using M1 processor and standard settings).
+         Async search performance remains the same as Fuse's (standard settings).

+ Ifrit was ported to Kotlin programming language: https://github.com/dfabulich/skip-ifrit

Installation

1. XCode -> Menu Line -> Add Package Dependencies -> https://github.com/ukushu/Ifrit.git

2. import Ifrit to your source files.

Documentation / Instructions / Example Project

Ifrit repository have no example project. Use instructions below:

How to use Ifrit's Fuse

How to use Ifrit's Levenstain

How to display search results in UI

Contributing

Ifrit welcomes contributions in the form of GitHub issues and pull-requests.