MModdyBatch image studio
SizeChoose compression only or export for a known canvas.
FormatPick the export type for the processed files.
QualityControl how hard the batch should compress.
BalancedDefault tradeoff between quality and savings.
Compression only

Keeps the original dimensions and focuses on file-size reduction.

Original dimensions retainedPreserves the incoming file type when possible.
Preset library

Platform sizes already wired in.

Use these ready-made export sizes for WordPress, Shopify, X, Facebook, Instagram, Threads, Substack, and YouTube instead of guessing canvas dimensions manually.

WordPress2 presets
Featured imageTheme-friendly social preview size. WordPress themes can still vary.
1200 x 630
Site iconMatches WordPress site icon guidance.
512 x 512
Shopify2 presets
Product imageRecommended square product format for storefront imagery.
2048 x 2048
Social sharing imageUseful for storefront sharing previews across networks.
1200 x 630
X3 presets
Post imageA 16:9 feed-friendly export.
1600 x 900
Header/bannerMatches X profile header guidance.
1500 x 500
Profile photoSquare export for X profile images.
400 x 400
Facebook3 presets
Feed/link imageWidely used preview ratio for posts and shared links.
1200 x 630
Page coverMatches Facebook Page cover guidance.
851 x 315
Page profileHigh-quality square export for page profile images.
320 x 320
Instagram4 presets
Square postStandard 1:1 Instagram post size.
1080 x 1080
Portrait post4:5 portrait post format.
1080 x 1350
Story/Reel coverVertical 9:16 export for stories and covers.
1080 x 1920
Profile photoSquare export for profile imagery.
320 x 320
Threads3 presets
Square postThreads uses the same practical image system as Instagram for square posts.
1080 x 1080
Portrait post4:5 portrait export for Threads posts.
1080 x 1350
Profile photoSquare profile export for Threads.
320 x 320
Substack5 presets
Publication logoSubstack recommends at least 256 by 256 with a transparent background.
256 x 256
Email bannerRecommended Substack email banner size.
1100 x 220
Publication cover imageSquare publication cover. Substack recommends at least 600 by 600.
1200 x 1200
Social / post previewUses Substack's recommended 14:10 preview ratio and exceeds the 1200 by 630 minimum.
1400 x 1000
Profile cover photoProfile cover images are cropped to a 3:1 ratio and should be at least 1200 pixels wide.
1500 x 500
YouTube1 presets
ThumbnailMatches YouTube custom thumbnail guidance.
1280 x 720