collage.tools

Local-first · no accounts · no uploads

Combine
anything.Free photo collage maker & image tools — nothing uploaded.

Collages, seamless Instagram carousels, grid puzzles, before-and-after shots, stitched screenshots, and moodboards — cut, arranged, and exported entirely in your browser.

Start a collageBrowse all six tools

Press ⌘K anytime to jump straight to a tool

The workbench — six tools

Photo Collage Maker

Auto-arranges 2–30 photos into justified rows or masonry columns without cropping any of them, then exports up to 4096 px wide.

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Seamless Instagram Carousel Maker

Slices one panorama into 2–20 edge-to-edge carousel slides (4:5, 3:4, 1:1, 9:16, or 16:9) and downloads them as a numbered ZIP.

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Instagram Grid Splitter

Cuts one image into rows × 3 tiles sized for Instagram's 3:4 profile grid (or 4:5 / 1:1), numbered in reverse posting order, as a ZIP.

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Before and After Photo Maker

Combines a before and an after photo as a split-line overlay or side-by-side image with labels and callouts, exported as one file.

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Combine Images Vertically or Side by Side

Joins any number of images top-to-bottom or left-to-right, scaling them to a common width or height, with optional gaps.

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Moodboard Maker

A freeform canvas for photos, text notes, and color swatches with palette extraction, center snapping, and PNG/JPG export.

Open tool →

Which tool do I need?

Put several photos into one picture
Use the Photo Collage Maker. It fits 2–30 photos into justified rows or masonry columns without cropping any of them. Open Collage →
Post a panorama that swipes seamlessly on Instagram
Use the Carousel Maker. It cuts one wide photo into 2–20 slides at 1080×1350 (4:5) so each slide continues exactly where the last one ends. Open Carousel →
Make a 3×3 puzzle across my Instagram profile
Use the Grid Splitter. It cuts 3:4 tiles (1080×1440) to match the profile grid Instagram has used since 2025, numbered in posting order. Open Grid Splitter →
Show a before and after
Use the Before and After Maker for a split-line or side-by-side image with labels and callouts. Open Before/After →
Join screenshots into one long image
Use the Image Stitcher. It stacks images top-to-bottom or left-to-right and scales them to a common width so the edges line up. Open Stitch →
Collect references and colors for a project
Use the Moodboard Maker: a free canvas for photos, notes, and swatches, with 5-color palette extraction from any photo. Open Moodboard →

Smart, on-device tools

Command palette

Press ⌘K to jump to any tool or flip the workspace theme without touching the mouse.

Undo, everywhere

Grid and Moodboard track every move — ⌘Z steps back, ⌘⇧Z steps forward, no confirmation dialogs.

Sort by color

Grid Mosaic can reorder your photos by dominant hue for a layout that reads as one continuous gradient.

Palette extraction

Drop a photo on the Moodboard and pull its five dominant colors out as swatches, sampled on-device.

Drag to reorder

Reorder Grid Mosaic thumbnails by hand, or let Shuffle and Sort do it for you.

Light & dark workspace

A cutting-mat dark theme and a drafting-desk light theme — matches your system, or toggle it yourself.

100% local processingZero uploadsNo sign-upNo watermarks

How it works

  1. 1

    Drop your photos

    Into any tool on this page. Files are read directly by your browser — nothing is uploaded anywhere.

  2. 2

    Arrange & adjust

    Auto-layouts do the heavy lifting; sliders and drag handles let you fine-tune every gap and corner.

  3. 3

    Export instantly

    Download a high-resolution PNG or JPG — or a numbered ZIP for multi-slide posts. No queue, no watermark.

Questions

Do my photos get uploaded anywhere?

No. Every tool reads your files with the browser's File and Canvas APIs, and exports are generated on your device. Image data is never sent to a server. You can check this yourself: open your browser's network tab while you export and you will see no image upload.

Do I need an account?

No sign-up, no login, no email. Open a tool and drop in photos.

Is there a watermark or a paid tier?

No watermark on any export, and nothing to unlock. Every feature on the site is free.

What image formats can I use?

Anything your browser can decode: JPG, PNG, WebP, GIF, AVIF, and on Safari also HEIC. Exports are PNG or JPG; multi-image exports download as a ZIP.

How large can exports be?

Collages export up to 4096 px wide. Carousel and grid tiles export at Instagram's native sizes (1080 px wide). The image stitcher goes up to 16,384 px on the long side (about 16 megapixels in total), which is what every current browser, including iPhone Safari, can export reliably.

Will my work survive a page refresh?

No — everything lives in memory for the session, including undo history. Export before you close the tab.

Does it work offline?

Once a tool has loaded, arranging and exporting need no network connection. The first page load does.

Does collage.tools track me?

The site uses Google Analytics to count page views. It never receives your images, file names, or anything you type into a tool.

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