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Project CSV is a free, open-source web application for viewing and editing .csv files in a browser or offline. It processes file data locally on the user's device without sending it over the network or collecting other data. The application allows selecting .csv files, adjusting settings, generating editable tables, and downloading the edited table.
CodePen tool for converting CSV data into HTML tables for quick web publishing.
Bleeper is a browser-based tool for creating NES-like sound effects by drawing volume and pitch sequences across eight waveforms. Sounds can be exported to mp3 or wav, and programs saved as text data for later editing. It is described as the official SFX creation tool for Pixelbox.
DB Browser for SQLite is a visual, open source tool for creating, searching, and editing SQLite or SQLCipher database files. It offers a spreadsheet-like interface alongside full SQL query facilities and works on Windows, macOS, and most versions of Linux and Unix.
Writing editor for improving clarity, readability, grammar, and style before publishing text.
Online editor for writing, previewing, and formatting Markdown documents in the browser.
Meta Tags is a tool for editing and experimenting with page metadata, then previewing how a webpage will appear on Google, Facebook, X and more. The site also links to official debuggers for Facebook, X, LinkedIn and structured data.
Browser playground for testing Microsoft's Monaco code editor and editor features.
Mermaid live editor for writing diagrams, flowcharts, sequence charts, and visual documentation.
Online SQL editor for writing and testing SQL queries without setting up a local database.
A browser-based viewer for SQLite files. Users drop a file onto the page or open it through a file dialog, and the file is processed locally with JavaScript and HTML5 FileReader rather than uploaded. Tables can be exported to CSV. The page requires a browser with modern HTML5 support.
DFIR tool for parsing URLs, timestamps, IDs, and encoded values into readable investigation clues.
Val Town is a platform for deploying code to live URLs. It supports cron jobs, REST APIs, webhooks, email, SQLite data storage, npm and Deno modules, and generating images and PDFs. A CLI allows editing code locally and deploying changes instantly, and AI coding tools can be used with it.
