Whats Reader

Whats Reader lets you revisit exported WhatsApp conversations and their attachments without sending the files to a service. It works with individual and group chats, so you can review old conversations or find details buried in messages and voice notes.

• Voice transcription and search: Whisper transcribes voice messages on your device through WebGPU, with support for multiple languages; search covers both message text and transcriptions.
• Media gallery: Browse photos, videos and audio by date, open full-screen previews, return to the original message or download selected attachments as a ZIP file.
• Bookmarks and notes: Save messages with your own notes and move bookmarks between copies of the app through JSON export and import.
• Conversation views: Perspective mode displays a chat as a chosen participant, while statistics show message counts, activity charts and a timeline.

The app reads WhatsApp ZIP exports containing messages and media. It runs in a browser or as a desktop app on macOS, Windows and Linux, with macOS builds for Intel and Apple Silicon. The interface supports multiple languages.

The browser version works offline after its initial page load. Chat processing, search, analysis and transcription stay on your device. You don't need an account or a transcription API key, and the app has no analytics or telemetry. The project is open source under AGPL-3.0.