Converter World

Converter World puts everyday English and document tools in one app. Most tools are free and need no account.

WRITING AND SPEECH
- Grammar checker. Fix a sentence for free, or turn on Use AI for a second pass.
- IPA transcription. See how English text is pronounced in phonetic notation.
- Text to speech. The device voice is free and speaks on your phone. Sign in for an AI voice and MP3 download.
- Live Substitution. Set short triggers that expand as you type, and turn on live captions to see your speech as text.

DOCUMENTS
- PDF to Word and Word to PDF.
- PDF compressor. Make a PDF smaller without leaving the app.
- Table to image. Turn a table into a picture you can share.

EVERYDAY
- Lunar calendar, with the Vietnamese zodiac and Can Chi.
- Workspace: two tools on one screen.

LANGUAGES
The app is in English and Vietnamese. It follows your phone's language, or you can choose one in More > Language.

PRIVACY
The app shows no ads and contains no advertising, attribution or analytics software from other companies. With Use AI turned on, your text is checked on your phone by Apple's model where it is available, or by AI models we run ourselves. Full details at https://converterworld.org/#privacy

CREDITS
Most tools are free. An AI grammar pass on our servers and long AI voice text use credits, sold as one-time in-app purchases. New accounts start with 10 credits. No subscription.