Simeji

Simeji is an AI keyboard and voice input tool, available for Windows, macOS, iOS, and Android, that converts spoken words into finished text. It addresses the gap between thinking speed and typing speed: the site contrasts roughly 45 characters for keyboard input against 220+ characters for AI voice input, and Simeji is designed to let users capture ideas, messages, and documents by speaking instead of typing.

Key Features

• AI voice input with filler removal: Simeji understands context and removes unnecessary words and verbal stumbles, so users can speak naturally without perfect phrasing and still get a clean sentence.
• Whisper input: Microphone capture of very quiet speech, intended for quiet offices or cafés where speaking aloud is awkward.
• Real-time translation: Speech in Japanese is translated into a specified language as you talk, removing the need to switch to a separate translation tool for chats and emails.
• Tone adaptation: The same utterance can be shaped for a casual chat or a more formal email, with AI adjusting the writing to fit the scene.
• Dialect conversion: Speech in regional dialects is converted into natural standard Japanese suitable for business use.
• Custom dictionary and learning: Users can register frequently used words and specialist terminology so recurring input converts more smoothly.

Typical Use Cases

• Writing emails and messages: Users dictate business emails or chat replies by voice; the site cites a sales user whose daily email work dropped from over an hour to about 15 minutes.
• Drafting content and scripts: Creators and writers speak ideas, social posts, video scripts, or article structures aloud and receive text to work from.
• Multilingual collaboration: Speaking Japanese produces natural English text for chats with overseas teams.
• On-the-go notes: Field and mobile users, such as real-estate agents, record impressions by voice right after a meeting so reports are ready on return.

How It Works

1. Install Simeji on Windows, macOS, iOS, or Android; the site states no complex setup is required.
2. Speak into the microphone from wherever you are typing, since Simeji works anywhere on the PC and supports multiple languages.
3. Simeji transcribes the speech, removes filler words, and formats the result into coherent text, applying translation or dialect conversion when needed.
4. Optionally register specialist terms in the dictionary to improve recognition of recurring vocabulary.

Who It's For

Simeji suits anyone who types more slowly than they think: sales and support staff handling heavy email and chat volume, writers and creators drafting content, translators preparing drafts, medical and PR professionals working with specialist terminology, and students summarizing research. Its whisper input and dialect conversion make it practical in shared or client-facing settings.

Simeji helps people turn speech into polished, context-appropriate text, making it a useful fit for professionals who want to write at the speed they speak.