Konthora

Konthora converts audio and video into accurate transcripts for free in the browser. You can upload files up to 100 megabytes and 10 minutes long, choose sentence, paragraph, or word-level timestamps, edit the result, and export as TXT, SRT, VTT, or JSON. Transcripts are deleted automatically after 60 minutes.

Transcription

Audio to Text with Timestamps

Upload audio, choose sentence, paragraph, or word-level timestamps, then transcribe, review, and export as TXT, SRT, VTT, or JSON.

Upload media

Audio and video transcription

Up to 100 MB
Drag & drop your file here, or click to browseSupported formats: .MP3, .WAV, .M4A, .AAC, .MP4, .WEBM, .MOV
Maximum file size: 100 MB

Currently supports English-language audio only.

Export Format
Ready to transcribeChoose a file, timestamp grouping, and export format.
Your files are processed securely and automatically deleted after 60 minutes. Privacy

Transcription Output

No transcription results yet

Upload an audio or video file and click Transcribe Audio. Your timestamped transcript and export controls will appear here.

Capabilities

What the audio transcription workspace supports

Konthora handles the general case: voice memos, recordings, interviews and anything else that arrives as an audio file. Here is exactly what is supported.

MP3, WAV, M4A, AAC

Every common audio format, plus video files handled as audio.

Three timestamp modes

Sentence, paragraph, or word level, chosen before you transcribe.

TXT, SRT, VTT, JSON

A readable transcript, subtitle files, or structured timing data.

English transcription

Speech recognition tuned for English-language recordings.

How it works

Transcribe audio in three steps

Upload a file and get an accurate, timestamped transcript in seconds.

1

Upload your audio file

Drop in an MP3, WAV, M4A or AAC file up to 100 MB and 10 minutes long.

2

Choose timestamp grouping

Pick sentence, paragraph, or word level depending on what you need the timing for.

3

Transcribe, review, and export

Review the transcript in the editor, then download TXT, SRT, VTT or JSON.

Who it is for

How people use Konthora audio transcription

Transcripts and captions for content, learning, research, and discovery.

Voice memos and notes

Turn a rough spoken memo into something you can search and act on.

Interviews and research

Pull verifiable quotes out of a recorded conversation.

Lectures and meetings

Make recorded teaching and business discussion readable.

Captions and subtitles

Create SRT or VTT files for any recorded media.

Audio to Text FAQs

Common questions about converting audio files to text.

What is the maximum upload file size?
100 MB and 10 minutes per file. Longer recordings must be split into parts before upload.
Which audio formats are supported?
MP3, WAV, M4A and AAC, plus MP4, WebM and MOV which are processed for their audio track only.
Which languages are supported?
English. Selecting auto detect processes the audio as English.
How accurate is the transcript?
It depends on the recording. Clear speech with low background noise transcribes best; see the accuracy guide for what to fix before uploading.
Can I choose timestamps?
Yes. Sentence, paragraph, and word-level grouping are all available, chosen before transcription starts.
Is my audio stored?
Uploads and transcripts are deleted automatically after 60 minutes, so anything sensitive has a short lifetime.