OptimageOptimage

True bulk operations

Compress, convert and resize
50 images in one go

Upload your whole batch once, pick your settings — quality, format, dimensions — and apply them to every file simultaneously. Download everything as a single ZIP.

Start batch processing →Learn about formats
50 files
per session
No daily cap — just start a new batch
All formats
supported
JPG, PNG, WebP, AVIF, GIF, TIFF, BMP, HEIC
Per-file
settings or global
Override quality & format for any image

What you can do in bulk

Every major operation on Optimage supports batch mode.

Bulk compression
Shrink entire product catalogues or photo libraries for web delivery in one click.
Batch convert to WebP
Turn a folder of JPEGs into next-gen WebP files and cut page-load time instantly.
Resize to one dimension
Standardise thumbnails, avatars or hero images across your entire asset library.
Add watermark to all
Apply your logo or copyright text to every image in the batch simultaneously.

How it works

1
Upload up to 50 files
Drag and drop your whole batch or click to browse. Supports JPG, PNG, WebP, AVIF, GIF, TIFF, BMP and HEIC.
2
Apply settings
Set global quality and format for the whole batch, or fine-tune individual files before processing.
3
Preview results
See per-file savings percentages and side-by-side comparisons before you commit to downloading.
4
Download as ZIP
Grab every processed file in a single ZIP archive — or download individual images if you prefer.

Who uses bulk image processing?

Anyone who works with more than one image at a time.

E-commerce teams
Product photo optimisation

Compress hundreds of product images before upload to Shopify or WooCommerce. Faster page loads, higher conversions.

Photographers
Client delivery

Export a full shoot to web-ready WebP or compressed JPEG in seconds. Watermark every image before delivery.

Web developers
Asset optimisation

Convert a design handoff folder to next-gen formats and resize assets to multiple breakpoints in one pass.

Optimage bulk vs competitors

See how Optimage compares on the features that matter for batch work.

FeatureOptimageTinyPNGSquoosh
Max files per batch5020 (free tier)1 at a time
File size limit100 MB each5 MB eachBrowser memory
PriceFreeFree / paid plansFree
Formats supportedJPG, PNG, WebP, AVIF, GIF, TIFF, BMP, HEICJPG, PNG, WebPJPG, PNG, WebP, AVIF

Frequently asked questions

How many images can I compress at once?
You can upload and compress up to 50 images per session on Optimage, completely free. There is no daily cap — just start a new session once a batch is done.
Can I convert formats in bulk?
Yes. Select a target format such as WebP, AVIF, JPEG or PNG and every file in your batch will be converted to that format in one go. You can also leave the format as "same as original" to keep each file in its source type.
Do all images get the same settings?
You can apply global settings to the whole batch or override quality, format and dimensions on individual files before you process. This makes it straightforward to handle mixed batches with different requirements.
Is bulk processing really free?
Completely. Optimage is a 100% free tool suite. Bulk operations — including ZIP download — cost nothing and require no account. We are funded by non-intrusive advertising.

Process your first batch free

No account. No file size tricks. Just upload up to 50 images and let Optimage handle the rest.

Start batch processing →
Bulk compressBulk convertBulk resize