The tool is free. It uses the Groq API which requires a free account at console.groq.com. The free tier includes thousands of seconds of audio per day.

What audio formats are supported?

MP3, WAV, M4A, MP4, WebM, OGG, FLAC, MPEG — any format Groq Whisper accepts. Max file size 25 MB.

What is the output format?

Standard SRT subtitle file with accurate timestamps from Groq Whisper's segment-level transcription.

What languages are supported?

Whisper supports 99 languages. Leave language set to Auto-detect for best results.

Audio to SRT — Groq Whisper Subtitle Generator

STEP 1 — Groq API Key

Free key at console.groq.com/keys — saved in your browser only, never sent anywhere except Groq.

STEP 2 — Upload Audio

🎧

Drop audio file here or click to browse

MP3 · WAV · M4A · MP4 · WebM · OGG · FLAC — max 25 MB

Language

Model

Provide your script to make subtitles more accurate

Verbatim Text (Whisper timestamps + your exact text = accurate subtitles.)

Upload .txt / .docx

Remove mid-sentence punctuation (，、；：)

SRT Output

How it works

Get a free Groq API key at console.groq.com — no credit card needed, generous daily limit.

Upload your audio file (MP3, WAV, M4A, MP4 or WebM — up to 25 MB) and choose the language if known.

Click Generate — Groq Whisper transcribes the audio with precise timestamps and your SRT file is ready to download.

Audio → SRT Subtitles