Free YouTube Subtitle Generator
Free YouTube Subtitle Generator

YouTube Subtitle Generator

Take the speech of a video and get it back as timed captions, each line with a start and an end, ready to fix and use as subtitles.

  • Output is a timed caption file, not just paragraphs
  • Standard formats you can edit line by line
  • Readable line lengths instead of wall-of-text blocks
  • Useful for accessibility, muting, and localisation
Generate subtitles

Subtitles and Transcripts Are Not the Same Job

One is for reading at your own pace, the other is for appearing on screen at the right moment.

A transcript can be a single long column of text, and that is fine because nobody else has to look at it. Subtitles cannot work that way. A caption has to appear when the words are spoken, disappear when they stop, and stay short enough to read in the seconds it is on screen. This tool reads the speech of a video and returns it as timed caption lines you can correct, re-time, and put to use, which is why the output is a caption file rather than a wall of prose.

What the Subtitle Generator Produces

The output is built for on-screen use, so timing and line structure matter as much as the words.

Return timed lines rather than paragraphs

Every caption carries the moment it appears and the moment it clears. That is what lets a player, an editor, or a platform show the right line at the right time.

Time the captions to the speech

Lines are aligned with when the words were spoken, so the captions track the audio instead of drifting ahead or behind it during a long video.

Start from the creator's own captions when they exist

A human-written caption track is preferred over a machine-generated one, because it already contains the names and technical terms a person had to correct.

Leave the file editable line by line

The result is a working file rather than a locked export. Lines can be shortened, split, or re-timed, and the rest of the captions stay where they were.

Produce captions in a language you choose

The video is read in whatever language it was recorded in and the caption language is your choice, so a single recording can serve viewers in more than one language.

Keep the file for the next version

Captions are kept with your account, so a corrected file can be reopened for a re-cut or a translated version instead of being rebuilt from the audio.

YouTube Subtitle Generator

YouTube Subtitle Generator

@subtitle-generator

What a Timed Caption File Gives You

Each caption line carries three things: the text, the moment it appears, and the moment it leaves. That structure is what makes subtitles possible at all, because a player needs to know when to show what. It is also what makes the file editable in a useful way: a mistimed line can be nudged, a clumsy phrase can be rewritten, and a long sentence can be split without disturbing the rest. Working in a caption file is a different kind of editing from rewriting a document, and it is the kind that stays in sync with the video.
Generate subtitles
Caption lines with start and end times
YouTube Subtitle Generator

YouTube Subtitle Generator

@subtitle-generator

Where the Words and the Timing Come From

The text is read from the audio of the video, and each line is timed to the moment it was actually spoken, so the captions land with the speech rather than near it. Where a video already has a human-written caption track, that version is preferred over machine-generated text because it is the version a person already checked. The video is read in whatever language it was recorded in, and the language the captions are written in is yours to choose, which means a video recorded in one language can produce captions in another. Every generation is kept in your history, so a file you corrected can be found again without repeating the work.
Generate subtitles
Speech read from a video and timed into captions
YouTube Subtitle Generator

YouTube Subtitle Generator

@subtitle-generator

People Watch Without Sound

A large share of viewers open a video in a place where audio is not an option: a train, an office, a room with someone asleep nearby. If the video has no captions, those viewers either leave or guess. Adding them is the difference between being understood and being skipped, and the text is the only part of that work that takes time.
Generate subtitles
A video watched with the sound off
YouTube Subtitle Generator

YouTube Subtitle Generator

@subtitle-generator

Accessibility That Is Actually Delivered

Deaf and hard-of-hearing viewers rely on captions to follow speech at all, and a video without them is closed to the people who need it most. Producing a caption file from the speech gets you most of the way there, with the remaining work being a human check on names, technical terms, and timing. That check is short when the structure is already in place, which is the difference between intending to caption a video and having done it.
Generate subtitles
Captions making a video accessible
YouTube Subtitle Generator

YouTube Subtitle Generator

@subtitle-generator

Reaching Viewers in Another Language

A second-language caption track is a cheaper way to open a video to a new audience than re-recording it. Generating the captions first and then working from that file keeps the timing intact while the wording changes, so the subtitles stay aligned with the speech even when the target language runs longer than the original. Translating inside a timed file is far less messy than translating a plain paragraph and re-timing it afterwards.
Generate subtitles
A second-language caption track built from the first
YouTube Subtitle Generator

YouTube Subtitle Generator

@subtitle-generator

Lines That Are Too Long to Read

Machine output often produces a sentence that stays on screen for eight seconds in one unbroken block. Nobody reads that comfortably, and the fix is editorial: split the sentence, shorten it, or move the line to where the speaker pauses. Working in a caption file makes those adjustments routine, because each line is a separate object with its own timing rather than a paragraph you have to disentangle first.
Generate subtitles
A long caption line split for readability
YouTube Subtitle Generator

YouTube Subtitle Generator

@subtitle-generator

Watching the File Once Before You Upload It

Before the file goes anywhere near the video, watch the whole thing once with the captions switched on. Fast speech is where the timing drifts: two lines can flash past before a viewer has read either, and a name or a figure is exactly the kind of thing automatic output gets wrong. Give the first and last thirty seconds a second look, since introductions, sponsor reads, and sign-offs sit on top of music or a slower pace, then correct the lines that clearly arrive early or late. The pass takes about as long as the video and saves you from publishing a caption file you have to pull down and replace.
Generate subtitles
Caption lines being checked against the spoken audio

Generating Subtitles for a Video

Four steps, ending with a file you still control.

Step 1

Add your video

Paste the link or upload the file. The language it is spoken in is identified as the video loads, and the video's details come back with it.

Step 2

Generate the captions

The speech is read and returned as timed lines, with each caption holding its own start and end point.

Step 3

Read through and correct

Check names, figures, and specialist terms, and split any line that stays on screen too long. Corrections stay inside the caption file, so the timing is preserved.

Step 4

Move the file into your edit

Take the generated captions into your editing tool, a captioning service, or the platform's own upload window. The video remains in your history for the next version.

Who Needs a Timed File

Subtitles are a deliverable, and deliverables get handed to someone else.

EN

Elias Novak

Video Editor

I start from the generated captions and spend my time on timing and line breaks, not on typing.

PR

Priyanka Rao

Course Producer

Every lecture gets captions now, and the transcript doubles as the reading for students who prefer text.

JW

Jonas Weber

Accessibility Coordinator

The file arrives structured, so the review is about accuracy rather than assembly.

About Caption Files

The details that decide whether generated subtitles are usable straight away or need work first.

Generate subtitles for a video

Get the speech back as timed caption lines you can correct and use, with the timing already attached.

Generate subtitles
Captions Are Checked by People

Generated captions are a first draft that a person still has to read.

Automatic speech recognition mishears names, numbers, and technical vocabulary, and a caption that flashes by uncorrected is worse than none. Read the file through before publishing, and credit the speaker when you reuse their words in another format.