WebM to text

Transcribe WebM for browser recordings, web video, and screen captures

WebM is the open video format used by browsers and many web recording tools. SnailText transcribes the audio from a WebM locally and can export SRT or VTT subtitles.

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Transcribe WebM and every other format, locally

No account · Nothing uploaded

What is a WebM file?

WebM is a free, open video format built for the web. Browser-based screen recorders, some meeting tools, and web downloads often produce WebM. It is efficient and widely supported online, but plenty of desktop tools do not read it.

How to convert WebM to text

SnailText turns a WebM into text locally, in four steps:

Open the Transcribe files screen in SnailText.
Drop in your WebM file, or a whole folder of them.
Pick your output: plain text, Markdown, JSON, or SRT / VTT subtitles.
Run it. The transcript is saved next to your files or wherever you choose.

The Whisper speech model transcribes on your own machine, so the audio never leaves your computer and there is no per-minute charge. WebM is a video format, so SnailText uses a codec pack it downloads once inside the app. After that one-time download it works offline, and transcription runs fully on your machine.

You captured a WebM from a browser recorder or downloaded web video, and you want a transcript or captions. SnailText extracts the audio and transcribes it locally, then can write SRT or VTT. Video formats use a one-time codec pack downloaded inside the app.

WebM to text and captions, free and without uploading

Most "webm to text online" tools upload your file to a server and cap you at a few minutes unless you pay. SnailText is the opposite: it transcribes WebM on your device, so nothing is uploaded, there is no length limit beyond your own memory, and the free tier has no per-minute meter. That makes it a fit for anything sensitive, recordings with names, client video, or private notes, where sending the file to a web service is the thing you want to avoid.

Generate SRT and VTT subtitles from WebM

The most common reason to transcribe WebM is captions. Pick SRT or VTT before the run and SnailText writes a subtitle file you can drop straight onto the video. It also exports plain text if you just want the transcript:

· SRT and VTT subtitles with phrase-level timestamps, ready to drop onto a video.
· Plain text (TXT) for a clean transcript you can read, search, and edit.
· Markdown with a heading per file, handy for notes and docs.
· JSON for feeding the transcript into your own scripts or tools.

Try it on your own files

Download for Mac

Transcribe WebM and every other format, locally

What people transcribe from WebM

Browser recording

"Transcribe a WebM from a browser screen recorder into text."

Web meeting clip

"Turn a WebM meeting recording into a written transcript."

Captioning a clip

"Generate VTT captions from a WebM before embedding it on a page."

WebM to text FAQ

How do I transcribe a WebM file?

Add the WebM to SnailText's Transcribe files screen and pick your output, including SRT or VTT for subtitles. It extracts the audio and transcribes it locally with the Whisper model, nothing uploaded. WebM and other video formats use a one-time codec pack the app downloads for you.

Why can other apps not open my WebM?

WebM is a web-first open format, so many desktop apps skip it. SnailText handles it through its codec pack, so you can transcribe or caption a WebM locally without converting it to MP4 first.

Is WebM transcription free?

SnailText's free tier transcribes locally with the compact Whisper models, no account and no per-minute meter. Pro adds the larger, more accurate models and an optional on-device AI cleanup pass, $7.49/mo or $89/yr for up to 3 devices.

Can I transcribe a whole folder at once?

Yes. Drop a folder (or several files) into the Transcribe files screen and SnailText processes them one after another, writing a transcript for each. It scans the files directly in the folder. You can also drag and drop files straight in.

Can I get SRT or VTT subtitles?

Yes. Pick SRT or VTT as the output before you run the transcription and SnailText writes a subtitle file with phrase-level timestamps. Choose it up front, since subtitles are produced during the run. You can also export plain text, Markdown, or JSON.

What languages can it transcribe?

SnailText transcribes in the full set of Whisper languages (99), and can auto-detect the language or let you pick. Everything runs locally, so multilingual transcription works with no internet after the model is downloaded.

Transcribe other formats

Transcribe WebM on your own machine

Free local transcription, no account needed. WebM to text, plus SRT and VTT subtitles, on Mac and Windows.

Download for Mac Or for Windows →