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LINE Voice Converter


LINE voice messages are huge in Asia, but they’re useless when you need to reference them later. Our LINE transcriber converts these voice notes to text, perfect for business LINE users, language learners, or anyone managing LINE communications.


How the LINE Voice Converter works


Export your LINE voice message file and upload it here. The converter processes LINE’s audio format (typically M4A or AAC), handling various recording qualities from different devices. Optimized for Asian languages but works globally. Download transcripts for documentation, translation, or sharing. Particularly effective with LINE’s clear voice recording quality.

LINE transcription bridges communication gaps. Business users in Japan, Thailand, and Taiwan document voice communications, international teams overcome language barriers, and users create searchable archives of important messages. Critical for LINE’s 200+ million active users.



Meet the fastest voice-to-text for professionals


WriteVoice turns your voice into clean, punctuated text that works in any app. Create and ship faster without typing. Your first step was LINE Voice Converter; your next step is instant dictation with WriteVoice.



A blazing-fast voice dictation

Press a hotkey and talk. WriteVoice inserts accurate, formatted text into any app, no context switching


Works in any app

Press one hotkey and speak; your words appear as clean, punctuated text in Slack, Gmail, Docs, Jira, Notion, and VS Code—no context switching, just speed with writevoice

Accurate, multilingual, and smart

97%+ recognition, smart punctuation, and 99+ languages so your ideas land first try, built for teams and pros.

Private by default

Zero retention, audio and text are discarded instantly, with on-device controls so you can dictate sensitive work confidently.



Start with LINE Voice Converter, then level up to WriteVoice.io