Turn Any Audio Into Clean Text
Transcribe MP3, WAV, M4A, MP4, or live microphone speech locally in your browser with Whisper WebGPU AI, waveform scrubbing, and SRT/VTT export.
Upload an MP3/WAV/MP4 file above and click Transcribe, or use Live Mic Dictation / Voice Recorder to capture speech locally.
Private · No File Uploads · Free · 6 verified Q&As
Turn Recordings, Videos & Live Speech Into Ready-to-Use Text
If you have ever finished a great podcast interview, lecture, or client call only to spend an hour scrubbing back and forth to type up notes, this tool is built for you. Drop in an audio or video file, dictate straight into your microphone, edit mistakes while listening along on the waveform player, and download clean text or video subtitles—all without uploading private recordings to someone else’s server.
Transcribing Files & Speech Locally
Pick How You Want to Start
Drag an audio or video file into the box above, switch to Live Mic Dictation for real-time notes, or hit Record to capture a voice memo right in this tab.
Choose Speed vs. Accuracy
For uploaded files, the Tiny English option finishes quickly and works well for clear voices. Pick Base when dealing with accents, background noise, or multiple speakers.
Listen Back & Tidy Up
Click any timestamp to hear that exact line again. Fix unusual spelling or brand names inline, add speaker names, and clear out filler words if needed.
Copy or Download Your Format
Grab clean paragraphs for an article, export .SRT subtitles for Premiere, CapCut, or YouTube, or download timecoded chapters for your show notes.
In-Browser Audio Studio Capabilities
Private File & Video Transcription
Convert MP3, WAV, M4A, OGG, FLAC, and even MP4 or MOV video files straight into text on your own computer with zero server uploads.
Live Microphone Notes With Backup Audio
Speak naturally while your words appear live on screen, and optionally save the audio recording at the same time so you never lose a word.
Click-to-Listen Waveform Player
See the audio shape clearly, speed playback up or slow it down (0.75x to 2x), and click any timestamp in your transcript to jump right to that moment.
Speaker Labels & Quick Inline Fixes
Tag parts of a conversation as Host, Guest, Interviewer, or Speaker 1 & 2, split long blocks apart, merge short ones, and fix names right where you see them.
One-Click Cleanup Tools
Strip out awkward filler words like "um", "uh", and "you know", neaten up spacing, or run find-and-replace across a whole interview in seconds.
Ready for Docs, YouTube & Editors
Save plain text (.txt), SubRip (.srt) and WebVTT (.vtt) subtitle tracks, clickable podcast/YouTube chapter lists, or structured JSON files.
Which Setting Should You Use?
| Item / Rule | Standard Reference | Practical Impact |
|---|---|---|
| Whisper Tiny (English) | Best for Everyday Use | Fastest option (~40 MB one-time download); great for podcasts, solo recordings, and clear interviews. |
| Whisper Base (English) | Best for Tricky Audio | Takes a little longer, but catches technical words, accents, and softer voices noticeably better. |
| Whisper Multilingual | 99 Languages Supported | Use this for non-English audio, mixed languages, or when you want foreign speech translated into English text. |
| Live Mic Dictation | Instant Real-Time Notes | Starts immediately with zero downloads—handy for brainstorming, drafting blog posts, or meeting notes. |
| Voice Recorder -> Whisper | Works in Any Browser | Records crisp audio in privacy browsers where live dictation is blocked, then transcribes it locally. |
| .SRT vs .VTT Downloads | Video & Web Subtitles | Use .SRT for YouTube, Premiere Pro, Resolve, and CapCut; pick .VTT for websites and HTML5 video players. |
How Local Browser Transcription Works Without Uploading Your Audio
Most transcription websites work the same way: you upload a huge file, watch a progress bar crawl, and either pay by the minute or hit a short teaser limit. Worse, whatever is in that recording—an unreleased interview, a confidential client call, or personal notes—ends up sitting on a stranger’s server. We built this tool to avoid that completely. When you pick a file here, your browser reads the sound track directly on your device, draws the waveform, and runs speech recognition right inside your own tab.
The first time you run Whisper AI on a file, your browser fetches the speech model (roughly 40 MB for the fast English model) and keeps a copy saved locally. After that one-time download, you do not have to wait for it again—even if your Wi-Fi drops, your browser already has what it needs to keep transcribing voice memos and recordings on your machine.
If you prefer speaking live while you think, the Live Mic Dictation mode writes down what you say as you talk. Because live browser dictation occasionally misses punctuation or mangles an unusual name, there is a checkbox to record the audio at the same time. That way, once you finish speaking, you still have the real audio sitting on the timeline and can either replay a tricky part or re-run it through the file transcriber for a cleaner pass.
Getting the words on screen is really only half the job. What usually takes time afterwards is cleaning them up so they are actually usable. Clicking any timestamp jumps the audio straight to that spot, so proofreading takes a fraction of the usual time. From there, you can clear out filler words, tag who is speaking, and download clean text, clickable podcast chapters, or properly timed .SRT and .VTT subtitles ready for your video editor.
Browser Transcription & Whisper FAQ
Clear answers and practical edge cases for Audio to Text Converter.