How do I use the VTT file on my site?

Host the .vtt next to your video and reference it from a track element inside your HTML5 video tag, or upload it to your player or platform as the caption track. The file starts with the required WEBVTT header, so it works as-is.

How accurate is the caption timing?

Cue timing comes from silence-aligned speech chunks, which keeps captions in sync with the dialog for normal viewing. It is not word-level karaoke timing, so individual words are not highlighted as they are spoken.

Does it add speaker labels?

No. Cues hold the spoken words shaped into standard two-line blocks of up to 42 characters per line, with no speaker names.

How is pricing calculated?

Subtitling is 5 credits per minute of audio. Because the length is not known until the file is processed, the upfront hold is estimated from file size at a typical video bitrate (about 8 MB per minute), so a typical minute works out to about 5 credits. The minimum is 5 credits.

Yes. Videos run on our own servers, are never used to train any model, and are auto-deleted 7 days after the job finishes.

4242tools

← All tools

Video to VTT

Video → VTT5 credits per minute

One video → a WebVTT caption file ready for HTML5 video, web players, and streaming platforms.

Files are encrypted

EXAMPLE

LESSON.MP4 · VIDEO

arrow_forward

LESSON.VTT

WEBVTT

00:00:02.100 --> 00:00:05.400

Here is the plan for this lesson.

lesson.vtt · ready for your player VTT

What you get

check_circleOne .vtt file named after your video, with the WEBVTT header in place

check_circleStandard two-line cues, at most 42 characters per line

check_circleTiming that tracks the dialog, ready for the HTML5 track element

check_circlePlain LF line endings that strict parsers accept

check_circleA clear message if the video has no audio or no speech

How it works

1Upload one videoDrop in an MP4, MOV, M4V, WEBM, MKV, or AVI file up to 500 MB.

2We transcribe and time the cuesThe audio is extracted and transcribed on our own servers in silence-aligned chunks, then shaped into standard two-line cues of up to 42 characters per line.

3Download the VTTOne .vtt file named after your video, ready for the HTML5 track element, your web player, or a platform caption upload.

Who uses this tool

WEB DEVELOPMENT

Captions for the track element

Point a <track> tag at the VTT and your HTML5 video has native captions, no player plugin required.

E-LEARNING

Course videos with captions

Most course platforms take VTT caption uploads. Generate one per lesson instead of typing cues by hand.

SAAS & PRODUCT

Captioned demos in your docs

Embed product walkthroughs with a caption track so users skimming your docs on mute still follow along.

MEDIA & STREAMING

A caption file for your player

Video.js, Plyr, JW Player, and most streaming stacks load VTT as their subtitle track format.

ACCESSIBILITY

Meet caption requirements on the web

A synced VTT caption track is the standard way to make embedded video usable for deaf and hard-of-hearing visitors.

MARKETING

Landing-page videos that autoplay muted

Browsers autoplay video muted. A VTT caption track means the pitch still reads on the page.

SECURITY

Built for sensitive documents

Bank statements, medical files, case records. Security isn't a feature we added — it's the foundation.

lock

Encrypted in transit

Encrypted in transit over TLS 1.2+, and stored in access-controlled, encrypted object storage. Files are protected the moment they leave your browser.

admin_panel_settings

Your files stay yours

Workspaces are isolated per account. Role-based access shows teammates only what they need.

auto_delete

Deleted, not stored

Files are deleted after processing. Everything runs on our own hardware and is never sent to an outside AI service, so your data is never used to train models.

dnsProcessed on our own hardwareauto_deleteDeleted after processinglockEncrypted in transit

Questions

MP4, MOV, M4V, WEBM, MKV, or AVI, one video per job, up to 500 MB and about 60 minutes of audio — longer recordings are rejected up front with a clear message. We extract the audio track and transcribe the speech; if the file has no audio or no recognizable speech, the job stops and tells you.