ID3 Tag Editor

This tool provides a web-based ID3 tag editor for MP3 files. Users upload one or more MP3s, and the editor exposes common ID3v2 frames for editing (Title, Artist, Album, Year, Genre, Track, Disc, Comments, Album Artist, Composer). The core workflow is non-destructive: the audio stream remains unchanged while metadata frames are updated and saved. It supports in-browser reading of existing tags, in-place editing, and batch operations for uniform tagging across multiple files. The system validates input formats (Year as four digits, sensible track numbers) and preserves non-tag data to avoid data loss. The tool targets musicians, podcasters, librarians, and distributors who require consistent metadata for discovery, playlists, and cataloging. Unique value lies in client-side processing that preserves privacy (no upload to external servers for tag editing) and the ability to export updated MP3s or a ZIP bundle for distribution. Core features include per-file tag editing, batch edits, encoding handling (UTF-8/UTF-16), and safe fallbacks for older tag versions.