Konthora

Konthora is a free, open-source AI audio platform for text-to-speech and audio/video transcription. It is designed for creators, students, educators, developers, podcasters, and anyone who needs natural speech generation or timestamped transcripts directly in the browser. The text-to-speech tool includes 41 AI voices across 6 languages. Users can generate speech and download the resulting audio as MP3 or WAV. Konthora also provides English audio and video transcription with sentence, paragraph, and word-level timestamp options. Transcripts can be exported as TXT, SRT, VTT, or JSON, making the service useful for subtitles, captions, searchable transcripts, editing workflows, and structured transcription data. Konthora focuses on making practical AI audio tools accessible without requiring users to purchase a subscription. The project is also open source, providing transparency around the product and its development. Alongside its browser-based tools, Konthora provides educational guides covering transcription timestamps, subtitle formats, speech-to-text workflows, text-to-speech technology, and related audio formats. The platform is built for practical everyday workflows, from generating narration and voiceovers to creating timestamped transcripts for videos, podcasts, interviews, meetings, and educational content. Users can choose the output format that best fits their workflow while using Konthora directly through a web browser.