AI Subtitle Generator

Free Subtitle Generator

Generate SRT and VTT subtitle files from any video or audio. AI-powered, browser-based, no upload required.

Drop your video or audio file here

Supports MP4, MOV, WebM, MP3, WAV - up to 1 GB

Related Transcript Tools

Need Plain Text Instead of Caption Files?

The subtitle route is best when timing matters. If you are after raw transcript text, repurposing workflows, or YouTube-specific use cases, these related tools are a better fit.

GENERAL TRANSCRIPTION

Video Transcriber

Open the main transcriber for a broader video-to-text workflow when your goal is transcript content rather than final caption files.

YOUTUBE REPURPOSING

YouTube Transcriber

Use the YouTube-specific route for chapters, clips, descriptions, and long-form video repurposing.

AUDIO-ONLY SOURCE

Audio to Text

Switch to the audio route for podcasts, meetings, voice notes, and interview recordings that do not need subtitle delivery.

Why This Page Goes Deeper

Made for Subtitle Work, Not Just Raw Text

Subtitle intent is different from general transcription intent. People coming here usually want timing, export formats, and a fast way to produce caption files they can refine later.

SRT and VTT Ready

Export timed subtitle files directly so your next step can be caption review rather than manual file creation from scratch.

Timestamped Segments

The transcript is already broken into timed chunks, which is the starting point most subtitle workflows need.

Works With Video or Audio Sources

Generate subtitle drafts from full video files or from audio-only masters when the spoken track is what matters most.

Private Caption Drafting

Keep internal edits, client cuts, and unreleased content on your device while generating the subtitle draft.

Easy Handoff to Editors

Export a plain subtitle file that can be reviewed, tweaked, and handed off without rebuilding timing from zero.

Useful for Social Captioning

Create a draft caption file quickly, then polish the lines that matter most for accessibility, retention, and platform delivery.

How It Works

How to Generate Subtitle Files

The workflow here is focused on making usable subtitle drafts quickly so you can move into review instead of building caption timing manually.

1

Upload the source media

Start with the video or audio you want to caption. The browser will extract the spoken audio needed for timing and text generation.

2

Run the transcription pass

The tool generates timed transcript segments that act as the base for the subtitle exports.

3

Review the transcript with timestamps

Check the main draft, toggle timestamps, and spot any areas that may need manual cleanup before final delivery.

4

Export SRT or VTT

Download the subtitle format that fits your caption workflow, editor, or publishing destination.

Search Intent Coverage

Subtitle Workflow Basics That Matter

Supporting content on a subtitle page should explain timing, formats, and review expectations, not just repeat generic transcription promises.

Topic 1

SRT vs VTT: Which One Should You Pick?

SRT is the classic subtitle format most people recognize. It is a reliable default when you need a plain, portable caption file with numbered segments and timestamps.

VTT is a web-oriented subtitle format that keeps timed text in a form many browser and player workflows understand easily. If you are unsure, SRT is often the simplest place to start.

  • Use SRT when you want a common subtitle handoff format.
  • Use VTT when a browser or web video workflow expects it.
  • Use TXT only when you want readable text rather than a caption file.
Topic 2

Auto-Generated Subtitles Are a Draft, Not the Final QA Pass

Automatic subtitle generation saves the most time at the beginning of the workflow. It gives you a timed draft so you are not typing every spoken line and timestamp manually.

For polished deliverables, you should still spot-check names, jargon, punctuation, and line breaks. The better the source audio, the lighter that cleanup tends to be.

  • Review proper nouns, brand names, and technical language.
  • Check timing on fast speech, crosstalk, and noisy sections.
  • Treat the export as a fast draft you can refine where quality matters most.
Topic 3

Use Subtitle Files Across More Than One Platform

A good subtitle file is reusable. You can start with one draft and adapt it for editors, publishing tools, or different delivery workflows instead of rebuilding captions from scratch each time.

That makes subtitle generation a practical first step for social teams, educators, agencies, and video publishers who create multiple outputs from the same source asset.

  • Create a single caption draft and refine it for final delivery.
  • Use subtitle timing to support short-form cutdowns and full-length uploads.
  • Keep timed text as an asset that travels with the video project.
For many teams, the biggest win is not perfect automation. It is getting to a usable timed draft quickly enough that review becomes manageable.
Use Cases

Who Needs a Subtitle Generator?

This page should rank for caption-specific searches, so the examples focus on subtitle production and timed text workflows rather than generic transcription use cases.

Short-Form Video Editors

Generate a subtitle draft for clips, explainers, and talking-head videos before polishing final caption timing in your editor.

YouTube Teams

Build caption files for long-form videos, tutorials, interviews, and recorded sessions without typing every line from scratch.

Educators & Trainers

Create caption drafts for lessons, webinars, and internal training material so recordings are easier to follow and review.

Agencies

Prepare timed caption drafts for client edits, approval rounds, and deliverables without adding another outsourced workflow.

Marketing Teams

Use subtitle files to support accessibility, retention, and mute-friendly viewing across product videos and campaign assets.

In-House Social Teams

Create a reusable timed-text asset from each source video, then adapt it for multiple publishing workflows.

FAQ

Subtitle Generator FAQ

These answers focus on subtitle formats and the realities of using auto-generated caption drafts in production workflows.

Schedule the posts you make from your transcripts

Turn captions, quotes, and clips from your video into scheduled posts across Instagram, TikTok, LinkedIn, X, and more — all from one SocialCal dashboard.

Discover SocialCalMore free tools

More Free Tools

Explore our full suite of free social media tools — no signup required.