How to use Web Image Toolkit

Getting started

1. Open the app. Click Open the free app - it loads in the browser you already have. There is nothing to download and no sign-up.
2. Add your photos. Drag images onto the page, or use the import button to pick files or a whole folder. Your pictures stay on your device the entire time.
3. Pick a task. The home screen is a menu of jobs - choose the one you want and a simple panel opens. Most jobs are three or four clicks from start to saved file.

Optimise & export for the web

This is the original heart of the toolkit: turn a heavy photo into a fast, correctly-sized set of web images, plus a ready-to-paste responsive bundle.

1. Import your images, then choose "Optimize & Export".
2. Pick a size preset (the default gives several widths such as 400, 800 and 1200 pixels - ideal for responsive pages), or set a custom width.
3. Leave the format as WebP + JPG for the best balance, or choose WebP-only or JPG-only.
4. Export. You get the optimised images and a copy-and-paste <picture> snippet that serves WebP with a JPG fallback.

Resize & compress

Need images at an exact size, or simply smaller files? Use "Resize & Optimize Images".

• Set the width (or pick a shape) and a quality level - you can see the trade-off before you save.
• It runs on a whole batch at once, so a folder of photos is done in one step.
• Quick one-tap helpers also live on the home screen: "Fit to a shape", "Trim blank edges" and "Add a background".

Social-media sizes

Choose "Make social media images" for a guided flow that outputs one photo at every platform's recommended size.

1. Select the platforms and shapes you want (Instagram, Facebook, X, LinkedIn, Pinterest, YouTube, TikTok, plus universal square, portrait, landscape and wide).
2. Choose Auto crop (centred) or Manual - drag once per shape to frame it exactly.
3. Export the full set in one go.

Build a photo gallery

"Build a photo gallery" creates a clean, shareable gallery web page from your images - or a single portable file you can send to someone.

• Pick your photos, choose a layout, and the app builds the page for you.
• The free version makes galleries of up to 12 images; Pro removes the limit and adds the full portable single-file export.

Make a PDF book

"Make a PDF book" turns photos and words into a printable PDF - a photo album, a trip diary, a kids' story or a product lookbook.

1. Pick your photos, then press Auto-fill for an instant draft (a cover, a page per photo, and a back cover).
2. Edit any page: choose a layout, assign photos, and type a title or caption. Add, reorder or delete pages from the strip.
3. Choose a page size and theme, then Save book (PDF) for a print-ready file - or Save as flip-book for a web page you can flip through and share (it opens in any browser and turns like a real book).

Free books are up to 6 pages; Pro goes up to 25.

Slideshows, montages & grids Pro

The creative makers live in the Advanced area (Pro):

• "Make a slideshow video" - turn photos into an MP4 or WebM video with gentle motion and titles, no watermark.
• "Make a montage" - combine several photos into one tidy image for posting or printing; drag to reframe.
• "Make a grid or carousel" - split a picture into a perfect Instagram grid or a swipeable carousel.
• "Make a quote / text card" - design a quote or announcement card on a colour or gradient (this one is free, no photo needed).

Filters, branding & cleanup Pro

• "Add a look" - sixteen one-tap filters to set the mood.
• "Add your branding" - stamp a logo, a tidy border and a caption or URL across a batch.
• "Hide or blur parts" - blur faces, plates or private details before sharing.
• "Add text or caption" - place a headline straight onto a photo.
• "Remove the background" - knock out a plain background and drop the subject onto a new colour.

Saving your work

When you export, the app saves straight back to your device:

• On Chrome and Edge, you can pick the exact folder to save into.
• Everywhere else, a single image downloads normally, and a batch arrives as one tidy ZIP file.
• On a phone, you can also share the result to another app.

Exports have their hidden EXIF data (including location) stripped, so you can share them safely.

Free vs Pro

The free version covers the everyday jobs - optimise, resize, social sizes, gallery (up to 12 images), quote cards and PDF books (up to 6 pages) - and is ad-supported.

Pro is a one-time purchase that removes the limits (unlimited images, 25-page books), unlocks the full creative suite (slideshow, montage, grids, filters, branding, blur, text, background remover), removes ads, and can be installed as an offline app. See the Free vs Pro comparison.

Privacy & offline use

Every image is processed inside your browser and is never uploaded. The free version shows Google ads, which is its only network use; the Pro version makes no network calls at all.

Pro can be installed from your browser's menu and then runs with no internet connection - handy on a train, a plane or anywhere offline.

Tips & troubleshooting

It works on my phone too?

Yes - it runs in any modern browser, including Safari and Chrome on iPhone, iPad and Android.

My photos are HEIC (from an iPhone)

HEIC support is best-effort. If a HEIC file will not import, open it in your phone's Photos app and share or export it as JPEG first, then bring that in.

A big batch feels slow

Processing happens on your own device, so very large batches depend on your hardware. If a huge set struggles on an older phone, work in smaller groups.

I changed something but do not see it

Refresh the page (a hard refresh, Ctrl+Shift+R or Cmd+Shift+R, clears any cached version).