Revise sir's online class on the metro: turn the video into a small MP3, right in your browser
Your recorded online class or a talk as an MP3 — revise on the metro without using video data. Choose an MP4, MOV or WebM and download the MP3; everything happens in your browser, so the video stays on your device. It runs on your device — nothing is uploaded, no queue.
Video up to 10 minutes and 200 MB. Free, no daily limit — it runs on your device.
How it works
- Choose a video
- Your browser makes the MP3 — clear enough for speech, small enough to share
- Play it here or download it
Example
You give:
A 5-minute recording of sir's online class (MP4)
You get:
Example: a 5-minute MP3 of the class to replay on the metro without video data — or upload it to hearlog for the transcript and notes.
Need the whole recording?
Sign up free to turn the class into text and lecture notes — 300 minutes a month.
What Pro adds
Ask one question across everything you have saved — “What did sir say about Article 21, and in which class?” — and get the answer with the recording it came from. 1,200 minutes a month (free: 300) and files up to 2 hours. ₹299/month or ₹2,990/year in India; $6.99/month or $49/year elsewhere.
Questions
Is my video uploaded?
No. The conversion runs in your browser on your device. Nothing is sent to hearlog or anyone else.
Is there a limit?
Videos up to 10 minutes and 200 MB, because the conversion uses your device's memory. There is no daily limit — it costs us nothing.
Can I get the text of the video too?
Yes: use Video to text for up to 3 minutes free, or sign up free to transcribe whole recordings — 300 minutes a month.
What do I get if I sign up?
A free account gives you 300 minutes a month for files up to 100 minutes each, with transcripts, speaker labels, five summary styles, translation into 50+ languages and 2 folders. Pro (₹299/month or ₹2,990/year) adds 2-hour files and one question across all your recordings.