Bulk Processing

Resize entire folders in one run

Batch resizethousands of images.

Apply channel presets or custom dimensions to a whole catalog - preserve subfolders, naming rules and aspect ratio. Built for ecommerce, ads and content ops at scale.

  • 1,000 images per batch
  • Preset or custom sizes
  • Folder structure kept
  • API + webhooks

JPG, PNG, WEBP · ZIP or folder upload · Up to 25 MB per file

catalog-spring-2026/847 / 1,000 resized
AmazonSample output
SKU-1847.jpg → 2000×2000

Batch settings

Preset
Amazon
Dimensions
2000×2000
Fit
cover · center
Output
WEBP · 90%

ETA ~4 min remaining

Channel preset

Preserve subfolders

Trusted by teams resizing at catalog scale

Ecommerce, agencies and platforms run high-volume resize jobs on Picnie - in the browser or via API.

96K+
Batch images resized
1,000
Max per batch
12
Channel presets
4.9★
Ops team rating
We resize 3,000 SKUs every season launch. Picnie keeps folder names intact and outputs Amazon-ready 2000×2000 in under an hour.
Marcus L.
Catalog Ops, NorthGoods
Our agency runs five brands through one batch preset - Instagram, Meta and email sizes export in a single ZIP.
Sofia K.
Production Lead, Harbor Studio
The Resize Image API plus webhooks replaced our cron + ImageMagick scripts. Batches notify Slack when done.
James T.
Engineering, StackShift
Presets

One preset. Every channel covered.

Pick a marketplace or social size once - apply it to the entire batch. Or define custom width, height and fit per job.

InstagramInstagram
1080 × 1080
FacebookFacebook
1200 × 630
LinkedInLinkedIn
1200 × 627
AmazonAmazon
2000 × 2000
Web heroWeb hero
1920 × 1080
EmailEmail
600 × 400

Built for volume, not one-offs

Everything you need when a spreadsheet of SKUs becomes thousands of resized assets.

Folder-safe batches

Upload a directory tree or ZIP - exports mirror your structure so ops teams stay organized.

Smart fit modes

Cover, contain or fill with focal-point control - no stretched logos or cropped products.

Parallel processing

Thousands of images processed concurrently - finish overnight jobs in minutes.

Naming & formats

Suffix rules, WEBP/JPG output and quality sliders - ready for CDN upload or marketplace import.

How batch resize works

Four steps from raw catalog to channel-ready assets.

01

Upload batch

Drop a folder, ZIP or connect via API with image URLs.

02

Choose preset

Instagram, Amazon, custom pixels - lock aspect or set fit mode.

03

Run job

Picnie resizes in parallel. Track progress live or via webhook.

04

Download or deliver

ZIP export, S3 push or webhook with output URLs per file.

Who batch resize is for

Any team that outgrew resizing files one at a time in a desktop app.

Resize Image API

Ecommerce catalogs

Marketplace-ready dimensions per SKU

Paid social

Meta, IG and story sizes from one master

Agency deliverables

Multi-brand batches with naming rules

App & web assets

@1x/@2x/@3x from a single upload

Email campaigns

Lightweight heroes for every template

API pipelines

Resize on ingest with webhooks

Developer API

Automate batch resize

Use the Resize Image API inside projects and jobs. Pair with webhooks to notify your app when thousands of outputs are ready.

  • Batch jobs
  • REST API
  • Parallel workers
  • Webhooks
View API docs
POST · Resize Image
curl -X POST https://picnie.com/api/v1/resize-image \
  -H "Authorization: YOUR_API_KEY" \
  -d '{
    "images": ["https://cdn…/sku-1.jpg", "…"],
    "width": 2000,
    "height": 2000,
    "fit": "cover",
    "webhook": "https://api.acme.io/hooks/resize-done"
  }'

Batch resize FAQ

Free plans support smaller batches; paid plans handle up to 1,000 images per batch with parallel processing. Contact sales for higher throughput.

Ready to resize your whole catalog?

Upload a folder, pick a preset, and download channel-ready assets - or automate with the API.