Dev Notepad

What is a Dev Notepad?

A Dev Notepad is a browser-based text editor designed specifically for developers: combining the simplicity of a notepad with developer-focused features like Markdown rendering, syntax highlighting, regex search, and version history. Unlike generic note-taking apps, it is built for writing code snippets, documentation drafts, and structured notes that benefit from markup and formatting.

CodeHelper's Dev Notepad saves all data locally in your browser using localStorage, meaning your notes are completely private and available offline.

Key Features

• Markdown Editor: Write in Markdown with a live preview that renders headings, code blocks, lists, and links.
• HTML WYSIWYG Mode: Switch to a rich text editor for HTML-formatted notes.
• Multi-tab Support: Manage multiple notes simultaneously in separate tabs without losing context.
• Version History: Take snapshots of your notes and restore previous versions anytime.
• Regex Search & Replace: Find and transform content in your notes with full regular expression support.
• Export: Download notes as Markdown (.md), HTML, or plain text files.

How to use the Dev Notepad

1. Open a new tab in the notepad and start writing.
2. Toggle Markdown preview to see rendered output alongside your raw text.
3. Use regex search to find and bulk-replace content across your note.
4. Save a version snapshot before making major changes.
5. Export the note to share or archive outside the browser.

Whether you are jotting down a code snippet, drafting technical documentation, or keeping a project journal, this free developer notepad keeps your notes organized and accessible without any account or sync setup.