Online Notes Manager

Project Domain / Category

Web Programming

Abstract / Introduction

Taking and managing notes efficiently is essential for students and professionals alike. The Online Notes Manager is a web-based application that allows users to create, edit, and delete notes from any device with internet access while ensuring flexibility in usage with or without login.

The project features a front-end built using HTML, CSS, and JavaScript, ensuring a simple and responsive user interface. The back-end is developed using Python, Flask and SQLite, handling user authentication, secure note storage, and CRUD (Create, Read, Update, Delete) operations.

For guest users (without login), notes are stored in the local storage of the browser or device. The system automatically retrieves stored notes on each visit, and drafts are auto-saved every 5 seconds to prevent data loss. For Authenticated users (which are logged-in), notes are securely stored in an SQLite database, and any locally stored notes are automatically synced upon login, ensuring seamless access across devices.

Users can categorize their notes, search within them, and set reminders for important tasks. This project offers a lightweight yet effective alternative to traditional note-taking applications, integrating local storage and cloud-based persistence to enhance accessibility and reliability.

Functional Requirements

1)     Guest Mode (Without Login)

a.      Users can create, edit, and delete notes, which are stored in the browser's local storage.

b.      Upon revisiting the application, it automatically retrieves and displays stored notes.

c.      Notes are automatically saved every 5 seconds while the user is typing. Prevents data loss in case of accidental closure or refresh.

d.      If a user logs in later, the system will:

i.      Sync local notes to the database.

ii.      Merge local notes with cloud-stored notes, avoiding duplicates.

2)     User Authentication (With Login)

a.      Users can register an account using a unique username and password.

b.      The system provides secure login/logout functionality.

c.      Passwords are hashed before being stored in the database to enhance security.

3)     Notes Management (For Logged-In Users)

a.      Users can create, edit, and delete notes, which are stored in an SQLite database.

b.      Notes can be categorized into different groups (e.g., Work, Personal, Study, Miscellaneous).

c.      A search functionality is provided to allow users to quickly find notes by:

i.      Title

ii.      Content