AI caption generator

Free AI Caption Generator for Videos

Upload a video, choose the spoken language, generate captions, edit the words, and export a clean SRT file for your publishing workflow.

MP4MOVWebMMP3WAV

Last updated: July 24, 2026.

Video to captions

Start an AI caption project

Choose a file and language first. Sign in only when you are ready to upload and generate captions.

Start free

Nothing is uploaded or stored from this page. After signing in, choose the file again to start your project.

Overview

Create captions without rebuilding your editing workflow

Filmizzy is an AI caption generator for creators who need fast subtitles but still want control over the final text. The workflow starts with your video or audio file, creates an editable transcript, and keeps every caption line open for corrections before export. That matters for creator content because names, hooks, slang, and brand terms often need a human pass.

This page is the general entry point — it handles video or audio, all three language modes, and either export path. If your content fits a narrower case (a Hinglish podcast clip, a Shorts hook, a Reels voiceover), the dedicated pages linked below go deeper into that specific workflow; start here when you're not sure which one applies, or a project mixes formats.

Real input and output

AI captions example

Original

Audio: "Aaj ka episode creator workflows ke baare mein hai."

Generated caption

Aaj ka episode creator workflows ke baare mein hai.

1
00:00:00,120 --> 00:00:03,020
Aaj ka episode creator workflows ke baare mein hai.

The generated line stays editable, so you can fix phrasing, split long captions, or adjust timing before export.

How it works

How free ai caption generator for videos works

The page content is crawlable without logging in, and the generation workflow starts from a clear upload and review path.

01

Upload your media

Start with MP4, MOV, WebM, MP3, WAV, or M4A media that has clear speech.

02

Choose language and output

Pick Hinglish, Hindi, or English and choose the caption output that fits your workflow.

03

Review the transcript

Correct names, hooks, punctuation, line breaks, and timing in the editor.

04

Export captions

Download SRT or render a captioned video.

Use cases

Who this page is for

Creators

Turn reels, shorts, and talking-head clips into captions that are easier to read on mute.

Agencies

Prepare quick first drafts for client videos before a human editor polishes the final file.

Educators

Caption course clips and tutorials so viewers can follow along without perfect audio.

Supported formats and languages

  • MP4
  • MOV
  • WebM
  • MP3
  • WAV
  • M4A
  • SRT export
  • Hinglish
  • Hindi
  • English
  • Roman Hindi output
  • Manual correction for names and slang

Benefits

  • Faster first draft than manual transcription.
  • Editable words and timing before export.
  • SRT works with common video editors and platforms.
  • Short clips can move from upload to review quickly.

Limitations

  • Background music, overlapping speakers, and poor microphones reduce accuracy.
  • Proper nouns and mixed-language slang still need review.
  • Captioned video export depends on plan limits.

Comparison

Choose the right caption workflow

Automatic captions vs manual captions

A first pass from Filmizzy usually gets word timing and most sentences right within seconds — the part that takes longest to do by hand.

What it will not catch reliably: brand names, inside jokes, and the exact pause before a punchline. Budget a quick read-through for those.

SRT export vs burned-in captions

Export SRT when the same video needs captions on more than one platform, or you expect to edit the wording after the clip is already cut.

Choose rendered captioned video only when the platform you are posting to will not accept a separate subtitle file upload.

FAQ

Questions people ask before generating captions

What does the free plan actually include?

SRT export within the listed free-plan limits. Rendered captioned video and longer processing minutes are paid-plan features.

Do I have to upload video, or does audio work too?

Audio-only files (MP3, WAV, M4A) work the same way as video — you get the same editable caption draft either way.

How much editing does the output actually need?

Depends on audio quality. Clean single-speaker audio often needs only spot-checks on names and slang; noisy or overlapping audio needs a fuller pass.

What happens with background music or multiple speakers?

Accuracy drops in both cases, but it is usually still faster to correct a rough draft than to type a transcript from scratch.

Which editors can I bring the SRT file into?

Any editor that imports standard SRT — YouTube Studio, Premiere Pro, DaVinci Resolve, Final Cut, and CapCut all accept it directly.

Start now

Upload your video and generate captions

Start with a short clip, review the words, and export an SRT file when the captions look right.

Upload your video

Related generator pages

Generate Accurate Hinglish Subtitles OnlineHindi Subtitle Generator for VideosFree SRT Generator for VideosYouTube Shorts Caption GeneratorInstagram Reels Caption Generator