AI video post-production for social creators

Finish in 10 minutes
the video post that
used to take 2 hours

AI captions, AI dubbing, multilingual translation, and smart covers — one place for every tedious post-production task, so you can spend time on the work that actually matters.

✓ Free quota on first visit · ✓ No credit card · ✓ See a finished result in 1 minute

0creators using it
0videos processed
0positive reviews
0minutes of post saved
AI Video Factory — Caption editor
This product completely changed how I make videos
02:14 / 05:32
AI captions — 24 lines recognized
00:12 → 00:16Welcome to my channel
00:16 → 00:21This product completely changed how I...AI generated
00:21 → 00:26make videos — and the efficiency gain...
⚡
Captions ready
Took 23 seconds
🎙️
AI dubbing ready
Female · Standard Mandarin
🌍
Translation done
ZH → EN · JA · KO

Have you run into these too?

Every social creator has been through this. AI Video Factory makes it history.

⏳
Pain 01

Typing captions by hand takes forever

A 10-minute video can take 1–2 hours to caption manually, and the timeline still slips. Publishing slows to a crawl.

Listen to the audio or read on-screen text, then generate timed captions
🎤
Pain 02

Voiceover is flat and hard to get right

Self-recording is noisy and retakes eat time; hiring talent is expensive; free TTS sounds robotic and drives viewers away.

Synthesize cue by cue and generate a voiceover in one tap
🌐
Pain 03

Multi-platform sizing is tedious, going global is hard

Every platform wants a different size, and hand-tuning each one burns hours. Taking content overseas means translation that is slow and costly.

30+ language translation + one-tap multi-size export

An all-in-one AI post toolkit

Five core tools cover the full post pipeline, so you can focus on the content itself.

📝

AI caption generation

Upload a video, transcribe the audio or read on-screen text, and get timed captions. Edit styles visually, burn them into the video, or export SRT.

ZH/EN speech-to-textOn-screen OCRStyle editorSRT export
🎙️

AI dubbing

Synthesize voiceover cue by cue and write it to an extra track. Original audio is kept by default. Chinese uses 晓晴; English offers multiple voices. Speed can follow caption duration.

Chinese 晓晴Multiple EN voicesSpeed-fit to captionsKeep original audio
🌍

AI multilingual caption translation

After captions are ready, translate them into a target language in one tap. Bilingual captions can show together so creators can take content overseas fast.

30+ languagesKeeps original timelineBilingual display
🖼️

AI cover generation

From keyframes plus title text, AI builds platform-ready covers with typography and optional brand logo overlay.

Smart frame pickMultiple templates16:9 / 1:1 / 9:16
✍️

AI script / copy assist

Enter a topic or keywords and AI drafts a full video script. Multiple style templates, multi-turn edits, and one tap to dubbing or captions.

Topic to scriptMultiple stylesMulti-turn chatOne tap to dubbing

The old way vs AI Video Factory

Same workload — AI saves you more than 90% of the time.

😩 Manual workflowAbout 2 hours

Transcribe captions line by line, then proofread again

50 min

Record voiceover or hire a voice actor

30 min

Nudge the timeline to match every line

20 min

Design a cover for each platform

15 min

Render and wait in the export queue

5 min+
VS
90%
Time saved
↓
Try it now
🚀 AI Video FactoryAbout 10 minutes

Listen to audio or read the frame, generate timed captions

Review after recognition

Pick a voice, generate natural dubbing in one tap

2 min

Timeline auto-aligns with smart line breaks

Automatic

AI covers, auto-fit to each platform size

1 min

Process locally in the browser, download the MP4

5 min
0creators using it now
0videos processed successfully
0minutes of post time saved
0user satisfaction

What creators are saying

Real experiences from real creators — not ads.

★★★★★

"A single episode used to eat a whole afternoon just for captions. Now I upload, wait two minutes, and the captions are there — accuracy is genuinely high. I've used it for three months straight, ship every week, and it keeps my channel alive."

M
@maya.vlogs
Lifestyle vlogger · 120K subscribers on YouTube
YouTube
★★★★★

"After upgrading to Plus it really is unlimited — I can process dozens of videos in a day. There are plenty of AI voices, and the female voice sounds natural. Clients can't tell it's AI, and I've saved a lot on outsourcing."

H
Hale Studio
Knowledge creator · 350K followers on TikTok
TikTok
★★★★★

"We publish for a global audience, and multilingual caption translation saved me. English-to-Spanish and Japanese timelines stay locked — no manual tweaking. Combined with Plus dedicated space, I don't worry about data privacy at all."

L
LingoForge
Global growth team · 80K subscribers on YouTube
YouTube
★★★★★

"The Free plan was already enough to judge quality. I only upgraded when I ran out of quota. The checkout felt smooth, and Plus onboarding has a clear walkthrough — no tech background needed."

J
@james.builds
Business creator · 60K followers on Instagram
Instagram
★★★★★

"AI script assist is surprisingly good. Type a few keywords, get a full voiceover draft, then turn it into captions in one tap. It removes the hardest writing step — perfect for a tech reviewer who doesn't love writing."

K
@kai.reviews
Tech reviewer · 40K followers on Instagram
Instagram
★★★★★

"Our MCN runs 20+ accounts, so batch processing is a must. Plus has no run or duration caps, and everything stays in our dedicated space — that meets our content-security bar. Highly recommend!"

N
Northstar Media
Content studio · 2M+ followers across talent
Agency

Three steps to finish post

A simple flow — see a finished result in about a minute.

1

Upload a video

Supports MP4 / MOV / AVI / MKV. After upload we read duration and resolution, detect speech, then open the tool you picked.

Pick a feature first, then upload
Detects speech, duration, and resolution
Speech-to-text can use Chinese or English
2

Do just this one thing

Each run handles only the feature you selected. Afterward you can add translation, dubbing, or a cover on the same video. Caption lines are editable one by one.

One feature per run — add more later if you want
Edit caption lines online
Preview before you export
3

Download the result

When the preview looks right, download a captioned MP4 and publish straight to Douyin, Bilibili, Xiaohongshu, and more.

Hard-burn captions and publish as-is
Export SRT caption files
Files stay on this device — download and publish yourself

From a free trial to unlimited use

Free runs in your browser. Upgrade to Plus for unlimited runs and duration, with exports that keep the source resolution.

Feature / spec
Free
$0
Try it on the site
🚀 Plus
$20
Monthly, cancel anytime
AI caption generation
1 / month
Unlimited
AI dubbing
1 / month
Unlimited
Multilingual caption translation
1 / month
Unlimited
AI cover generation
1 / month
Unlimited
AI script / copy assist
1 / month
Unlimited
Max video duration
15 min
Unlimited
Suggested file size
Under 200MB, try 300–500MB
Under 200MB, try 300–500MB
Export resolution
Keeps source resolution
Keeps source resolution

You might be wondering

More questions? See the full Help Center, or contact us directly.

Yes. On first visit we assign an anonymous account with a free quota — no sign-up, no card, go straight to the studio. The quota includes 1 AI caption run, 1 AI dubbing run, 1 translation run, and more. Processing happens in this browser, and records stay on this device.
You'll see an upgrade prompt for Plus. After upgrading, we provision a high-performance remote device just for you. Sign in there to process captions and audio without run or duration caps. This computer has 20 runs per tool per month. If you prefer not to upgrade, wait for next month's reset.
Plus is not unlimited use in this browser. It is a high-performance remote device that belongs only to you. After purchase we email connection details plus a screenshot-and-video guide. Sign in to that device to enjoy unlimited caption and audio processing — about 10 minutes, no tech background needed. Live support can walk you through it.
MP4, MOV, AVI, MKV and other common formats. Processing stays in this browser — aim for under 200MB at 1080p or below; on a stronger machine you can try 300–500MB, with no guarantee. Free videos are capped at 15 minutes and will be rejected if longer; Plus has no duration cap. Captions can come from speech (Mandarin / English) or from hard-subs on screen. After recognition you can review and edit line by line in the studio.
Open the full Help Center →
Today 1,284 creators are using it

Start now — no sign-up

Upload your first video and see AI captions in about a minute. Completely free, upgrade anytime.

✓ Free quota on first visit · ✓ No card required · ✓ Cancel anytime