Audio to SRT Converter – Convert Audio to Subtitles Online Free (SRT, LRC & ASS)Looking for a powerful Audio to SRT Converter that helps you generate subtitles instantly? This free audio to subtitle converter online allows you to upload your audio file and download subtitle formats like SRT, LRC, and ASS in seconds.
Whether you are a YouTube creator, podcaster, musician, or online educator, this tool helps you convert audio to subtitles quickly without installing any software. It works directly in your browser and uses AssemblyAI transcription for accurate subtitle generation.
About the Audio to SRT Converter Tool
The Audio to SRT Converter is a web-based tool that converts audio files into subtitle formats such as:
- SRT – Ideal for YouTube, VLC, and most video players
- LRC – Perfect for music players and karaoke subtitles
- ASS – Best for advanced subtitle styling
This tool securely uploads your audio to AssemblyAI for transcription and then generates subtitle files automatically. It also displays the transcript so you can review and copy the text before downloading.
Supported audio formats include: MP3, WAV, M4A, AAC, OGG, FLAC, and WEBM (Maximum file size: 20MB).
How to Use – Convert Audio to Subtitles
Step 1 – Get Your Free AssemblyAI API Key
Visit assemblyai.com and sign up for a free account. After logging in, copy your API key from the dashboard. No credit card required. The free plan includes up to 100 hours of transcription per month.
Step 2 – Enter API Key in the Tool
Paste your API key into the API key input field. You can enable the “Remember my API key” option for future use.
Step 3 – Upload Your Audio File
Drag and drop your audio file or click the Browse button. An audio player will appear so you can preview your uploaded file.
Step 4 – Convert Audio to Subtitles
Click the Convert to Subtitles button. The tool will begin transcription and show a progress bar. Processing usually takes 30–60 seconds depending on audio length.
Step 5 – Review Transcript
After processing, your transcript will appear on the screen. You can review and copy the transcript using the Copy Transcript button.
Step 6 – Download Subtitle Files
Download your subtitles in SRT, LRC, or ASS format based on your needs.
Key Features
- ✅ Supports MP3, WAV, M4A, AAC, OGG, FLAC, WEBM
- ✅ Converts audio to SRT, LRC & ASS formats
- ✅ Instant subtitle generation
- ✅ Transcript preview before download
- ✅ Copy transcript button
- ✅ Works directly in browser
- ✅ Secure API key storage (stored locally)
- ✅ Supports multiple languages
This makes it one of the most efficient audio to SRT online free tools available.
Benefits of Using This Audio to Subtitle Converter
1️⃣ No Software Installation
Everything works online. No downloads required.
2️⃣ Fast Subtitle Creation
Generate subtitles from audio within seconds.
3️⃣ Perfect for Content Creators
Ideal for:
- YouTube creators
- Podcasters
- Online course creators
- Musicians (LRC karaoke files)
- Video editors
4️⃣ Multiple Subtitle Formats
You can convert audio to LRC file, SRT file, or ASS file depending on your platform needs.
5️⃣ Free to Use
The tool itself is completely free and works with AssemblyAI's free transcription plan.
Frequently Asked Questions (FAQs)
What is an SRT file?
An SRT file is a subtitle format used in videos. It contains timestamps and text for captions.
Can I convert MP3 to SRT?
Yes, this MP3 to SRT converter supports MP3 and other common audio formats.
Is this audio to subtitle converter online free?
Yes, it is completely free to use.
Does it work offline?
Yes, it works directly in your browser interface.
Is transcription accurate?
Accuracy depends on audio clarity. Clear audio provides better results.
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Conclusion
If you are searching for a reliable Audio to SRT Converter, this tool provides everything you need: fast transcription, multiple subtitle formats, browser-based processing, and easy download options.
From YouTube creators to podcasters and musicians, anyone can convert audio to subtitles quickly and efficiently.
Audio to SRT Converter | Generate Subtitles | Download SRT, LRC & ASS | Free Online Tool