![\"Build](\"https:\/\/danielepais.com\/journal\/wp-content\/uploads\/2025\/08\/Build-a-Simple-Chrome-Extension-An-AppSumo-Wishlist-with-Local-Storage.jpg\")
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Have you ever found an interesting deal on AppSumo, copied the link somewhere, and then completely forgot about it? This small Chrome extension solves that problem. It lets you search AppSumo directly<\/strong>, save deals (name + link) <\/strong> into local storage, and later edit, delete, export, or import <\/strong> them.<\/p>\n The best part: it\u2019s offline <\/strong> and requires no Google Web<\/a> Store publishing. You load it locally, and it just works.<\/p>\n \u26a1 Note on privacy<\/strong>: this extension runs entirely from your local Chrome installation. All your saved data is stored in In this tutorial, I\u2019ll show you step by step how to<\/a> build it with HTML, CSS<\/a>, and JavaScript <\/strong> using Manifest V3<\/strong>.<\/p>\n Table of Contents<\/p>\nchrome.storage.local<\/code><\/strong> (a sandboxed storage area inside your browser). Nothing is ever uploaded to an external server. This means you keep full control of your data<\/strong>, unlike many extensions that sync or send analytics to third parties.<\/p>\n