25 services · 77 slots · synced weekly
The right size
for every placement.
YouTube Shorts at 1080×1920. Discord stickers at 320×320 with a 512 KB ceiling. Steam header capsules at 460×215. FoldCut seeds every slot from a curated catalog — then measures which export actually fits.
Free · local only · never uploads your clips
Simpler app — platform export only; compare is Advanced.
YouTube
Shorts · video
1080×1920
YouTube · Shorts
- Dimensions
- 1080×1920
- Aspect
- 9:16
- Duration
- ≤60s
- Frame rate
- 30 fps
- Formats
- MP4 · WEBM · WEBP
Looped previews · specs from the bundled catalog · 6 featured slots
Pick the slot. FoldCut handles the spec.
Dimensions, duration limits, file-size ceilings, allowed formats, alpha, and loop hints — pulled from the catalog, not a blog post from 2019.
- Step 1
Pick a service & slot
Choose from 25 services and 77 curated slots — each with real dimensions, limits, and formats for that exact placement.
- Step 2
Export to spec
FoldCut applies the slot's dimensions, limits, and allowed formats — then picks the best-measured export for that placement.
- Step 3
Download or Pack
Grab the winner or zip every variant sized to spec — no re-export roulette.
Platform catalog
25 services. Every slot sized right.
Pick YouTube Shorts, a Discord sticker, a Steam capsule, or any curated slot — FoldCut seeds real dimensions, file limits, and formats, then measures which export actually fits.
25 services · 77 slots · synced weekly
YouTube
Social
4 slots · 2 img · 2 vid
Thumbnail · Channel banner…
Instagram
Social
5 slots · 3 img · 2 vid
Feed square · Feed portrait 4:5…
TikTok
Social
2 slots · 1 img · 1 vid
In-feed video · Cover
X
Social
5 slots · 4 img · 1 vid
Post image · Post square…
Facebook
Social
4 slots · 2 img · 2 vid
Feed image · Cover photo…
LinkedIn
Social
4 slots · 3 img · 1 vid
Feed image · Cover…
Pinterest
Social
2 slots · 1 img · 1 vid
Standard Pin · Idea Pin / video
Snapchat
Social
2 slots · 1 img · 1 vid
Story / Spotlight · Lens icon
Threads
Social
2 slots · 1 img · 1 vid
Post image · Post video
Twitch
Game
4 slots · image
Profile · Offline screen…
Discord
Chat
5 slots · 3 img · 2 vid
Sticker · Custom emoji…
Slack
Chat
3 slots · 2 img · 1 vid
Custom emoji · Workspace icon…
Steam
Game
5 slots · 4 img · 1 vid
Header capsule · Main capsule…
itch.io
Game
2 slots · 1 img · 1 vid
Cover image · Embed GIF
App Store
Store
3 slots · 2 img · 1 vid
iPhone 6.9″ screenshot · iPad 13″ screenshot…
Google Play
Store
3 slots · 2 img · 1 vid
Feature graphic · Phone screenshot…
Notion
Web
2 slots · 1 img · 1 vid
Page cover · Embed GIF
Web / OG
Web
3 slots · 2 img · 1 vid
Open Graph · Favicon…
Email
Web
2 slots · 1 img · 1 vid
Hero image · Animated GIF
Reddit
Social
4 slots · 3 img · 1 vid
Post image · Community banner…
WhatsApp
Chat
2 slots · video
Status · Sticker
Telegram
Chat
2 slots · 1 img · 1 vid
Sticker · Channel photo
Vimeo
Social
2 slots · 1 img · 1 vid
Custom thumbnail · Upload 1080p
Shopify
Store
3 slots · 2 img · 1 vid
Product image · Collection hero…
Behance / Dribbble
Portfolio
2 slots · 1 img · 1 vid
Shot / cover · Animated shot
Platform names and logos are trademarks of their respective owners. FoldCut is not affiliated with or endorsed by these services.
After sizing
Quality you can put a number on.
Once a slot's dimensions and limits are applied, every variant is scored with SSIM against the exact frames the encoder saw — so you pick the smallest file that still measures clean.
AV1 matched WebM's measured quality at 45% of the size.
127 KB vs 231 KB — both scored 0.987. Same quality, less than half the bytes.
The GIF was 38× larger — and measurably worse.
4.8 MB at 0.962, against AV1's 127 KB at 0.987. FoldCut flags it instead of quietly handing it to you.
A size budget that's actually honoured.
GIF and WebP have no bitrate to turn down, so FoldCut drops frames and pixels until they fit — and tells you exactly what it changed.
Secondary: size + SSIM comparison after the slot is sized. Real output, not mock data.
Trim to a loop
Drag the in and out points and the preview loops that exact segment. On a long clip this is the single biggest lever for a small GIF — bigger than any encoder setting.
Transparency, kept
Alpha is detected in the source and preserved across WebM, WebP and GIF — including transparent WebM, which most tools silently flatten.
Five formats, one drop
MP4, WebM (VP9), AV1, animated WebP and GIF, encoded in parallel across your cores with native FFmpeg.
Platform specs, always fresh
Twenty-five services with image and video slots — synced weekly from a curated catalog. Pick a slot, then ★ Recommended still decides.
Nothing is uploaded
Encoding runs on your machine. Your clips never touch a server, there's no account, and the app ships with no credentials of any kind.
Light or dark
The marketing site and desktop app both ship light and dark themes. Tertiary text and accents were measured for WCAG AA in every combination — numbers stay readable in either mode.
Stop guessing pixels.
Pick your platform slot, fold your clip to spec, and download the export that actually fits.
Download for WindowsFree · Windows x64 · installer isn't signed yet, so Windows will ask you to confirm