Turn lectures into study notes instantly
Record the lecture, upload the file, get a searchable text transcript — so you can actually listen in class instead of frantically typing.
Drag a file here or browse
MP3, WAV, M4A, FLAC · MP4, MOV, MKV, WebM · up to 2 GB
Set language, translation, or vocabulary hints below before transcribing
YouTube, Dropbox, Google Drive, or any direct MP3/MP4 link
Not applied on Gemini 3.5 Transcribe — the model can't combine vocabulary hints with word-level timestamps
MP3, WAV, M4A, FLAC · up to 2 GB · 10 minutes free every day
Why students use convert.express
- 10 free minutes every day — enough for most seminar recordings or short lectures
- Covers 64 languages across all models, useful for international students or language courses
- No account needed to get started — upload and transcribe immediately
- Pay only for longer recordings: a 90-minute lecture is just €1.80
- Plain text output works in any note-taking app — Notion, Obsidian, Google Docs
Students record lectures, seminars, and study group sessions throughout term time, then have little or no transcription work during breaks and holidays. Many recordings — short seminars, review sessions, office-hour conversations — fall within or close to the 10-minute daily free quota, keeping the typical cost near zero for most of the academic week.
Popular languages: English · Spanish · Japanese · all 64 languages →
Have a specific file type? M4A to Text · MP4 to Text · Voice Memo to Text
Whisper supports all 57 languages including minority and regional ones — ideal if your lectures mix languages or cover less-resourced languages.
How it works
Record the lecture
Use your phone or laptop microphone. Most audio recorders save as M4A or MP3.
Upload and transcribe
Drop the file — Whisper handles accented professors, fast speech, and technical vocabulary surprisingly well.
Search and study
Ctrl+F through the transcript to find the exact moment a concept was explained. Paste into your notes.
Get a quick summary if you need one
Request an AI summary of the lecture straight from the finished transcript — useful for a fast review before an exam without rereading the whole thing.
Simple pay-as-you-go pricing
A 90-minute lecture costs €1.80. Use the 10 free daily minutes for shorter recordings.
Frequently asked questions
- Is it free to transcribe a lecture?
- Short recordings within the 10-minute daily free quota cost nothing. A 90-minute lecture beyond the free quota costs €1.80 in total. There is no subscription — you only pay for recordings that exceed the daily free allowance.
- Do I need to create an account?
- You can upload and transcribe immediately without signing up. Creating a free account adds a persistent daily 10-minute quota and gives access to your transcript history across sessions.
- Why is Whisper recommended for lecture recordings?
- Whisper supports all 57 of its covered languages including minority and regional ones, making it suitable for multilingual lectures or language courses. MAI-Transcribe 1.5 is also available and may be faster for supported languages — try both on a short clip to compare.
- Does it handle accented speech and technical vocabulary?
- Whisper handles accented speech reasonably well, including non-native speakers lecturing in English or other well-resourced languages. Technical vocabulary transcribes accurately for most subjects. Very specialised terminology or unusual proper nouns may need a quick review after downloading.