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@kishikawakatsumi

Kishikawa Katsumi

kishikawakatsumi
Tokyo

Hi, I'm Katsumi, a software engineer who improves the developer experience for Swift, iOS, and macOS. In my free time I've built and maintain various open-source projects of my own like:

  • Swift Power Assert - Power Assert library in Swift.
  • KeychainAccess - Simple Swift wrapper for Keychain that works on iOS, watchOS, tvOS, and macOS.
  • SwiftFiddle - SwiftFiddle is an online playground for creating, sharing, and embedding Swift fiddles (little Swift programs that run directly in your browser).
  • Swift Regex DSL Builder - Swift Regex is an online tool to learn, build and test Swift Regex Regex and Regex Builder.
  • Swift AST Explorer - AST visualizer for Swift source code.
  • Swift Formatter - Online playground for swift-format. You can quickly try various configurations of swift-format online.
  • Apple Localization Terms Glossary - An unofficial Apple localization terms glossary that allows you to search for standard localization texts provided by the Apple platform.
  • xcresulttool GitHub Action - A GitHub Action that generates a human-readable test report from the Xcode result bundle and shows it on GitHub Checks.
  • WebTranslator - Unofficial Safari web extension for DeepL translate.
  • IBPCollectionViewCompositionalLayout - Backport of UICollectionViewCompositionalLayout to earlier iOS 12.
  • SourceKitForSafari - A browser extension for GitHub, that enables IDE features on your browser such as symbol navigator, go to definition and documentation on hover.

Working on open-source is my great joy in life and I want to be able to do that as much and as long as I possibly can. If you like what I do or if you ever made use of something I built, consider supporting me through one of the sponsor tiers here. Either a one-time donation or a monthly sponsorship is greatly appreciated. This will allow me to focus even more time on the projects I'm working on.

Thank you so much for helping me out! 👏🏻

Current sponsors 8

@bannzai
@unorderly
@tuist
@ushisantoasobu
@t-n0121
@heckj
@rayfix
Private Sponsor

Past sponsors 14

@banwanko
Private Sponsor
Private Sponsor
@hassila
Private Sponsor
Private Sponsor
@martinhoeller
Private Sponsor
@EdgarDegas
Private Sponsor
Private Sponsor
@griffin-stewie
@masakih
@vpravdivy

Featured work

  1. SwiftFiddle/swiftfiddle-web

    SwiftFiddle is an online playground for creating, sharing and embedding Swift fiddles (little Swift programs that run directly in your browser).

    JavaScript 189
  2. SwiftFiddle/swiftregex

    Swift Regex is an online tool to learn, build and test Swift Regex Regex and Regex Builder.

    Swift 139
  3. kishikawakatsumi/applelocalization-web

    An unofficial Apple localization terms glossary that allows you to search for standard localization texts provided by the Apple platform.

    TypeScript 151
  4. SwiftFiddle/swift-ast-explorer

    AST visualizer for Swift source code

    HTML 534
  5. kishikawakatsumi/KeychainAccess

    Simple Swift wrapper for Keychain that works on iOS, watchOS, tvOS and macOS.

    Swift 7,803
  6. kishikawakatsumi/SourceKitForSafari

    SourceKit for Safari is a Safari extension for GitHub, that enables Xcode features like go to definition, find references, or documentation on hover.

    JavaScript 690

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$ a month

You'll receive any rewards listed in the $30 monthly tier. Additionally, a Public Sponsor achievement will be added to your profile.

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☕️ Thanks for supporting me!

$14 a month

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🍛 Thanks for supporting me!

$30 a month

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⚡️ With your contribution, I can cover my server costs for hosting my projects. Thank you!

$50 a month

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⚡️ With your contribution, I can cover my server costs for hosting my projects. Thank you!

$100 a month

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🧡 Thank you for your generous support of my work. These funds will help support my work in various ways that the other tiers support. I'll be forever thankful for your support.

$200 a month

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🧡 Thank you for your generous support of my work. These funds will help support my work in various ways that the other tiers support. I'll be forever thankful for your support.

$500 a month

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🥰 Thank you for your generous support of my work. These funds will help support my work in various ways that the other tiers support. I'll be forever thankful for your support.

$1,000 a month

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🥰 Thank you for your generous support of my work. These funds will help support my work in various ways that the other tiers support. I'll be forever thankful for your support.