Long video to SRT: one subtitle file for up to 10 hours.

Webinars, lectures, council meetings and stream replays, subtitled as one file with one continuous clock. No cutting the video into 30-minute parts and no stitching SRT files back together.

Up to 10 hours per fileUp to 5 GBOne continuous SRTFree preview

How it works

From a long recording to one subtitle file in three steps.

1

Send the recording

Paste a YouTube or Drive link, or upload the file. For multi-gigabyte video, upload the audio track instead: the subtitles are the same and the upload is minutes, not hours.

2

Leave it running

You can close the tab. A two to four hour recording typically finishes in about twenty minutes; the transcript opens from your library or the link you were given.

3

Download SRT or VTT

One file covers the whole recording, with hour marks in the timecodes (03:12:45,100).

What we measured on long files

Numbers from our own job records, not a promise.

Over 90 days to 4 October 2026 this site finished 334 recordings of two hours or longer, 1,150 hours between them. The longest single recording completed was 10.9 hours.

Three public runs with their full transcripts, including a 9.3-hour one, are on the long-file proof page.

Keeping a long SRT usable

Practical points that only show up past the first hour.

Sample output

What the SRT file looks like.

1
00:00:34,680 --> 00:00:46,500
fourscore and seven years ago our fathers brought forth upon this continent a new nation conceived in in liberty, and dedicated to the proposition

2
00:00:46,500 --> 00:00:50,300
that all men are created equal.

3
00:00:50,300 --> 00:00:57,500
Now we are engaged in a great civil war, testing whether that nation, or any nation so conceived

4
00:00:57,500 --> 00:01:01,620
and so dedicated, can long endure.

5
00:01:01,620 --> 00:01:07,920
We are met on a great battlefield of that war we have come to dedicate a portion of that field

6
00:01:07,920 --> 00:01:14,240
as a final resting place for those who here gave their lives that their nation might live

7
00:01:15,360 --> 00:01:18,800
it is altogether fitting and proper that we should do this

Real output, unedited: a public-domain LibriVox reading of the Gettysburg Address (2 min 41 s) transcribed here in October 2026. The repeated word and the missing capitals are what came back; you would fix those on the transcript before downloading.

Before you rely on it

What the subtitle file is, and what it is not.

One cue per spoken phrase

Each cue is a phrase from the transcript with its start and end time. Most run a few seconds. A passage spoken without a pause can come out as one long cue of up to about half a minute, so split those in your editor if your platform wants two short lines at a time.

Timing comes from the audio

Cue times are taken from the recording itself, so the file lines up with the video or audio you uploaded. If you trim the start of the video afterwards, shift the cues by the same amount in your editor.

Accuracy we measured

On public test recordings, about 7 words in 100 differed from the reference for clean English read speech, between 4 and 9 in 100 for Spanish, Portuguese, Russian, French and German, and about 21 in 100 for Hindi. Noisy rooms, music and crosstalk do worse. Method and every number: the benchmark.

Fix a line before you download

Open the transcript, correct a misheard name or number on its line, and the SRT and VTT you download carry the correction with the timing unchanged.

A plain file, not a styled video

You get the subtitle file. Fonts, colours, position and captions drawn into the picture are done in your video editor or player, which reads this file.

Limits

Up to 10 hours or 5 GB per recording. The box on this page takes files up to 500 MB; larger ones continue on the upload page. 99+ languages, detected automatically.

Pricing

What subtitling a long recording costs

The preview is free. When the full transcript needs a pack, one-time packs are $4 for 500 minutes, $8 for 1,000 minutes, $12 for 2,000 minutes, $24 for 5,000 minutes. Credits never expire, which comes to about $0.29 to $0.48 per hour of audio. An eight-hour day fits inside the smallest pack.

Recording$4 or $8 pack$12 pack$24 pack
2-hour webinar$0.96$0.72$0.58
4-hour workshop$1.92$1.44$1.15
8-hour conference day$3.84$2.88$2.30

Figures are the share of a pack each recording uses. A button opens secure checkout for that pack. Every export format is included; full details on the pricing page.

FAQ

Long video to SRT, answered.

What is the longest video I can get subtitles for?

Up to 10 hours or 5 GB in one file. Recordings up to about eight hours finish reliably; beyond that it often works but is not something we call dependable, so split at a natural break.

Do I have to split a long video into parts?

No. One recording gives one subtitle file with a continuous clock, which avoids offsetting and rejoining several SRT files.

How long does a 3-hour video take?

Typically around twenty minutes for recordings of two to four hours, measured across our own jobs. You can close the tab and come back.

The video file is huge. What should I upload?

Upload the audio track. Extract it with the free tool linked on this page; the subtitles and their timing are identical and the upload is far quicker.

What does a long video cost?

Usage is per minute of audio. A 4-hour video uses 240 minutes, under half of the $4 pack of 500 minutes, and credits never expire.

Subtitles and captions

Every page in this set uses the same upload box and the same export. All subtitle pages

Closest to this page

From a link or a file

Make subtitles

WebVTT

For a platform or an editor

Convert a subtitle file

Formats and rules

By language

Send the whole recording. Get one SRT.

Free preview. Up to 10 hours or 5 GB per file; packs from $4.