Article promo
Article Promo — Classic
A four-scene vertical promo for full articles, workflow notes, and build diary posts.
- Format
- Vertical 9:16
- Duration
- 28 seconds
Private service prototype
Short promo videos from reusable HTML templates.
A practical rendering service for written updates. Choose a trusted template, fill structured fields, preview the HTML animation, render an MP4, then download and post it manually.
Featured templates
Start with the format, then fill the fields.
These are trusted templates with known fields, durations, and output sizes. The service renders the final MP4 server-side instead of asking you to record the browser in OBS.
Article promo
Article Promo — Short Hook
A tighter article promo for posts where the hook matters more than the full summary.
- Format
- Vertical 9:16
- Duration
- 24 seconds
Build note
Build Note Promo
A practical promo format for small project updates, dev logs, and what-changed posts.
- Format
- Vertical 9:16
- Duration
- 26 seconds
Product update
Product Update — Changelog
A four-scene vertical promo for release notes, changelogs, and steady product progress.
- Format
- Vertical 9:16
- Duration
- 26 seconds
Product update
Launch Note Promo
A product-update style promo for announcing a new public page, feature, or private beta milestone.
- Format
- Vertical 9:16
- Duration
- 26 seconds
Built for posts
Articles, updates, notes
The first templates are still powered by a few trusted HTML layouts, but the gallery now includes several honest variants for articles, build notes, patch notes, tips, and quote-style takeaways.
Not a canvas
No free-form HTML uploads
Version one uses prebuilt trusted templates only. That keeps rendering predictable and avoids turning the product into a support problem.
Private renders
MP4 creation needs access
Public visitors can browse and preview templates. Actual renders still happen inside the protected members area while the service is tested.
Workflow
What the service is trying to remove.
The old workflow was write the post, generate an HTML animation, record it in OBS, trim it in Clipchamp, then export the video. This service keeps the good part — reusable HTML templates — and moves the recording/export step to the server.
Choose template
Pick the promo format that fits the update.
Fill fields
Edit titles, bullets, dates, CTAs, and brand defaults.
Preview HTML
Check the running animation before spending render time.
Render MP4
Create the vertical video and download it for manual posting.
Who it is for
People who publish written updates.
Old Stack Journal is the first real test customer, but the workflow is meant for any small publisher, solo builder, product owner, or practical blogger who needs repeatable vertical promo clips without opening a full video editor.
What stays manual
Download first, post yourself.
The service renders the MP4. It does not post to TikTok, Instagram, YouTube, X, or Facebook. That keeps the first version focused on the painful part: turning written copy into a decent video file.
This is still a focused rendering service, not a design canvas, AI avatar tool, timeline editor, or social autoposter.