Where do my photos go while I edit?

Into blob URLs in this tab. Closing or refreshing the page drops them. Convertify4u does not receive a copy on the collage path.

Which aspect ratios exist in the dropdown?

Three: 1:1 at 1080×1080, 4:5 at 1080×1350, and 16:9 at 1920×1080 (CSS pixels, captured at 2×). There is no 9:16 Story box and no millimetre paper size.

Is the download stamped with a logo?

The image pixels are not. Free-tier filenames may include a convertify4u suffix. Paid/unlimited users keep an unbranded stem. That is filename policy, not a visual watermark.

Can I put more than sixteen pictures on one board?

Not in one session. Split the set, export two boards, or use carousel mode if the destination wants a swipe instead of one tile.

Does this replace Canva or Photoshop?

No. Canva still wins for type-heavy brand kits and team templates. Photoshop still wins for masking and print prepress. This studio wins when you need a private, account-free grid from files already on disk.

Why does a GIF look like a still?

The editor displays the file in an and captures a frame. It is a valid input, not an animation exporter. Use GIF Maker if motion is the point.

How do I keep edges crisp?

Start with photos larger than a cell, pan so the subject is not clipped, and export PNG when the board has hard graphic edges. JPG at 0.92 is fine for photographs.

Collage Maker Hub

Collage Maker — On-device photo studio

Drop pictures into Collage Studio, pick a cell template, pan the subject inside each cell, and download a single board. Work happens in this tab with Canvas — Convertify4u never receives the files.

Collage Maker natively accepts JPG/JPEG, PNG, WebP, and GIF. For HEIC (iPhone photos), BMP, TIFF, or AVIF, convert to PNG/JPG first, then return here to create your collage.

Written by Safaat Rahman Siham, Founder & Developer at Convertify4u. Contact us.

What this studio actually is

A layout board, not a cloud album

Collage Studio is a browser canvas that tiles photos you already have. You choose Single mode, pick 1:1 (1080×1080), 4:5 (1080×1350), or 16:9 (1920×1080), then fill a template that matches how many files you added (one through sixteen). Spacing, corner rounding, and a solid background color are the finishing controls. It does not generate pictures, does not pull from a stock library, and does not sync a gallery to our servers. If you need swipeable frames instead of one combined image, switch to Carousel mode in the same UI or open the carousel hub.

Formats, capture, and the 16-file ceiling

Native drop targets are JPEG, PNG, WebP, and GIF. iPhone HEIC, BMP, TIFF, and AVIF need a convert-first step — the HEIC converters in the ecosystem links exist for that, not as decoration. Export runs through html2canvas at 2× the CSS canvas, then JPG (quality 0.92) or PNG. A square board therefore lands around 2160×2160 pixels; that is enough for feeds and small frames, not a print-shop RIP. Sixteen files is a hard cap because the tab holds decoded bitmaps in memory. Bigger shoots belong in batches, not one heroic drop.

How the spokes divide the work

This hub is the overview. Free access, client confidentiality, pixel pipeline, and speed each get their own article because they answer different questions. Platform pages cover Instagram’s 1:1 and 4:5 boxes, Facebook feed vs cover crops, and how 16:9 maps to YouTube thumbs. Grid, templates, mood boards, events, product shots, print math, multi-select, phones, and a first-timer walkthrough live on the remaining spokes. Use those pages as a map, not as seventeen copies of the same paragraph.

What we will not pretend

There is no 9:16 Story preset, no A4 millimetre canvas, no PDF package, and no “AI that invents a scene from a prompt.” Layouts include clip-path shapes (circle, heart, star, diamond, hexagon) and mixed cell sizes — those are CSS templates, not a model. Free downloads may stamp convertify4u on the filename only; the pixels themselves are not overprinted. If a competitor page promises all of the above in one sentence, it is selling a different product — or the same product with inflated copy.

How it works

1
Add pictures the tab can decode
JPEG, PNG, WebP, or GIF — up to sixteen. Convert HEIC from iOS first so the drop zone can read the file.
2
Lock a ratio and a cell map
Square, portrait 4:5, or landscape 16:9. Templates filter to the count you loaded; drag inside a cell to set focus.
3
Export one file
PNG for sharp edges and type-adjacent graphics; JPG when you want a smaller share file. Nothing waits in a server queue.

Use cases

One post instead of a dump

Trip, dinner, or shop shots that should read as a single tile in a feed rather than ten separate uploads.

Side-by-side proof

Two-cell and four-cell maps for before/after, colorways, or room angles without opening a desktop suite.

Reference boards

Pull palette, texture, and product stills onto one canvas for a client kickoff — then attach the PNG to email.

Shape-cut portraits

Circle and heart masks for invitations or highlight icons when a rectangle feels too administrative.

Problems we solve

Upload-first collage sites

Many “online editors” store a copy before you see a preview. This path never hands the bitmap to a Convertify4u host.

Wrong box for the app

Feeds punish 16:9 inside a square hole. Pick the ratio here so the app is cropping margin, not faces.

HEIC surprise on iPhone

Camera Roll originals often will not decode until you run HEIC → JPG or PNG, then return to the studio.

Related image tools

Pair the Collage Maker with crop, compress, resize, or format converters before you create your collage.

Specialized collage maker guides

Trust & technology

Client-side capture

Rendering and download use the page’s Canvas. The footer line is literal: no uploads on this tool.

Honest input list

JPEG/PNG/WebP/GIF in; converters linked for everything else. We do not fake native HEIC.

Same studio everywhere

Phones and desktops share one implementation. No separate licensed desktop build.