Is this a one-click folder uploader?

Not necessarily. Treat it as a disciplined queue: same settings, many files, still in the browser. That matches how the current picker works.

Do the files upload when I process many of them?

No. After the page loads, Canvas runs on-device. Volume does not change that architecture.

What formats should a mixed folder use?

Normalize to JPG, PNG, or WebP first. Convert HEIC in bulk via the HEIC tools, then scale the JPEGs.

Will my laptop melt on 200 files?

It will get warm. Work in chunks, watch RAM, and keep originals. The 10,000 px cap per image is the hard stop, not a cloud quota.

Where do I go for marketplace-specific sizes after bulk?

Open Enlarge Product Images for Amazon/Shopify-oriented floors, then keep using the same queue habit.

Should I compress the whole set in the same sitting?

Only if a destination has a size cap. Otherwise keep the larger masters; compress per channel later.

Image Enlargement Guide

Batch Image Enlarger — Bulk & Multi-Image Queue

Catalog days need the same scale on dozens of shots. Treat the picker as a queue: open, scale, download, next — still local, still not a cloud farm.

Loading image enlarger…

Prefer the main tool? Open our free image enlarger — also called our browser tool to enlarge image files on-device.

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

Honest sequential batch, not a silent 200-file GPU job

Teams search for a bulk photo enlarger because Photoshop batch is heavy and cloud farms keep wedding galleries. Today’s UI may still be one file at a time. That is still a batch workflow if you keep settings constant: same scale factor, same light sharpen, same output folder named “enlarged.” Stage HEIC shoots through HEIC to JPG first so every loop hits a native raster. Prefer JPG/PNG/WebP. Cap is 10,000 px per file — a whole folder of 10k-wide exports will fill a disk; check free space. Device RAM matters more than “unlimited cloud.” If a tab stalls, pause, close other apps, or move the queue to a laptop. This Instant path does not upload a ZIP of the shoot to Convertify4u. Pro OCR/VPS gates on other products do not apply to this Canvas loop. After the set is scaled, compress in a second pass only if a DAM has a megabyte cap. Do not mix wildly different aspect ratios in one “same scale” recipe without checking crops.

How it works

1
Stage the folder locally
Convert HEIC siblings first. Keep originals in one directory and exports in another so you can redo a file.
2
Repeat the same Canvas recipe
Even with a single-file control, consistency is the batch: identical scale and sharpen across the set.
3
Name and store outputs
Download into an “enlarged” folder. Spot-check the first three at 100% before you grind through fifty.

Use cases

SKU photo days

Same lighting, same camera, same missing pixel floor — one recipe across the pack.

Event galleries

Weddings and conferences before a client gallery goes live. Keep the originals; exports are derivatives.

Blog migration

Dozens of heroes that must meet a new theme’s minimum width.

Editor handoff packs

Send scaled files so layout does not start from 800 px camera emails.

Problems we solve

No true multi-select yet

Sequential queueing is still faster than opening a desktop suite per file, and it stays private.

Mixed HEIC and JPEG folders

Convert the HEIC pass first. Mixing containers in one mental recipe causes picker errors mid-queue.

Cloud batch tools storing shoots

On-device loops keep private events off remote disks.

Image tool ecosystem

After you use the image enlarger, crop framing, compress exports, remove backgrounds, or convert HEIC before upscaling.

Related guides

Trust, speed & privacy

No cloud batch farm

Each encode is local Canvas. Convertify4u never receives the folder.

Fast per-file upscale

Seconds per typical photo. Huge TIFFs after conversion may take longer on the CPU you have.

Any modern browser

Windows, macOS, Android, iOS, and Linux. Big folders are happier on desktop RAM.

Frequently asked questions

Open image enlarger