Your Video Is Finished.
Your Publishing Work Isn't.
Upload once. VividSpark analyzes your video and creates platform-specific covers, titles, captions, descriptions, hashtags, and tags for TikTok, Instagram, YouTube, and Facebook—then lets you review and publish everything in one workflow.
No copy-pasted captions. No rebuilding the same post four times.
Need background music too? Add an AI Soundtrack first →
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AI That Understands Your Video—Not Just a Prompt
Most caption and thumbnail tools start with a text prompt, leaving you to guess what fits. VividSpark analyzes the story, scenes, emotion, and hook points in your actual video, then creates every asset around what it finds.
Full video understanding
AI reads the story, key scenes, emotion, and hook points—not just a one-line prompt.
Two covers, one upload
Vertical covers for TikTok and Reels, horizontal for YouTube, and for Facebook whichever one matches your video's own orientation—all from the same upload.
Every platform gets its own copy
Titles, captions, descriptions, hashtags, and tags are written for how people search and scroll on each platform.
You're always in control
AI drafts every cover, caption, and title. You review, edit, or regenerate anything with a simple instruction before it's ever published.
Track Every Platform in One Dashboard
See plays, likes, comments, shares, and saves across TikTok, Instagram, YouTube, and Facebook without switching apps.
Manage comments in one inbox
Manage and respond to comments from Instagram, YouTube, and Facebook in one unified inbox.
From Finished Video to Ready-to-Publish Posts
Four steps. One upload.
Upload Your Finished Video
Upload an MP4, MOV, WebM, AVI or MKV file. Post Studio is built for videos you've already edited—not raw footage.
AI Analyzes Your Video and Creates Every Asset
AI analyzes your video's story, scenes, emotion, and hook, then creates platform-specific covers, titles, captions, descriptions, hashtags, and tags.
Review and Publish
Review and edit every field, choose your platforms, and publish in one workflow.
Get Smarter With Every Post
48 hours after publishing, receive a report with real performance data and specific suggestions for your next video's topic, structure, editing, and hook.
See What Worked—48 Hours After You Post
VividSpark tracks how each post performs, then emails you a plain-language report that scores five key dimensions and gives specific suggestions for your next video's topic, structure, editing, and hook.
- ✓ Performance data pulled automatically—plays, likes, comments, shares, saves, and engagement rate
- ✓ Scored across five dimensions: Hook, Narrative, Value Density, Production, and Platform Fit
- ✓Specific, numbered suggestions for your next video's topic, structure, editing, and hook—not generic tips
- ✓ Once a few of your posts have been scored, each report is compared with your own publishing history—so the baseline sharpens as you publish more
- ✓Delivered directly to your inbox 48 hours after publishing—no dashboard required
Keep your publishing accounts connected and active. VividSpark handles the tracking automatically.
Solid foundation—a few targeted fixes could take this further.
Not Quite Right?
Just Describe It.
Describe the change you want—tone, cover, hashtags, or platform style—and VividSpark regenerates only that field. No starting over.
More Than a Caption Generator. More Than a Scheduler.
See how Post Studio compares with typical single-purpose tools.
| Feature | Typical Single-Purpose Tools | VividSpark |
|---|---|---|
| Video understanding | ✕Often start from a text prompt | ✓AI analyzes the actual video's story and scenes |
| Covers | ✕Usually create one standard thumbnail | ✓Vertical and horizontal covers generated automatically |
| Platform copy | ✕Often reuse or lightly adapt one caption | ✓Titles, captions, descriptions, hashtags, and tags built for each platform |
| Finished video | ✕Often designed for raw clips or re-editing | ✓Built for finished videos—your original edit stays unchanged |
| Publishing | ✕Requires separate export and upload steps | ✓Review and publish everything in one workflow |
| Fine-tuning | ✕Often requires manual rewrites or full regeneration | ✓Describe a change in plain language and regenerate individual fields instantly |
| After publishing | ✕Usually offers limited performance follow-up | ✓Performance report and next-video suggestions delivered 48 hours after posting |
Before You Upload
What language are the captions and cover text in, and can I switch them to Chinese?
Everything is written in English by default, and you can switch it to another language — Chinese included — from the publish page. Describe the change in your own words, such as “rewrite the captions and the cover text in Chinese”, and VividSpark rewrites them. It covers the caption body on TikTok, Instagram, YouTube Shorts, YouTube and Facebook, the title and keyword tags on YouTube, and the words on the cover image itself, where Chinese is set automatically in a contemporary Chinese sans-serif. Every caption, title and cover text can also be edited by hand.
Do I need to pay, and do I have to connect my social accounts?
No credit card is required to create an account and try Post Studio, and you can generate covers and captions without connecting anything. Publishing is where accounts come in: to post to TikTok, Instagram, YouTube or Facebook you connect that platform’s account first, and keeping each connection active spends credits that renew periodically. The AI steps — designing the covers and writing each platform’s copy — spend credits too, so Post Studio is free to start rather than free to run.
Your video is already finished.
Give it the posts it deserves.
Upload once and let VividSpark prepare covers, titles, captions, descriptions, hashtags, and tags for TikTok, Instagram, YouTube, and Facebook.
Upload Your Video — FreeNo credit card required · Review and edit everything before publishing · What it costs to publish