Bulk image watermark
The free bulk watermark tool that stamps a text or logo watermark onto hundreds of images at once. Protect and brand your product photos before you post them — right in your browser, with full control over position, size and opacity. No upload, no account.
100% free — images are watermarked on your device and never uploaded.
What a bulk image watermark tool does
A bulk image watermark tool stamps your text or logo across many photos at once, so every image carries the same mark before you share it. Instead of placing a watermark on each picture by hand, you load a whole folder, design the watermark once, and the tool applies that exact watermark to the entire batch. Every image is watermarked locally in your browser and saved to a single ZIP, so even hundreds of high-resolution photos are watermarked in seconds.
Watermarks protect your work and reinforce your brand. A text watermark adds a copyright line or studio name, a logo watermark drops a transparent PNG badge onto each shot, and a tiled watermark repeats across the whole frame to make screenshots hard to reuse. With control over position, size and opacity, you can make the watermark subtle or bold. This free online tool keeps every image private — no uploads, no sign-up, and no limit on how many you watermark. And because the whole set is watermarked in one pass, protecting an entire shoot or product catalog takes a single click instead of editing each photo by hand, so your mark lands in exactly the same place on every image.
Watermark a whole folder in three steps
Drop your images
Add as many as you like — they stay on your device, fully private.
Set your watermark
Type text or upload a logo, then choose its position, size and opacity. Tile it for extra protection.
Download the ZIP
Get every watermarked image back as a single ZIP, ready to post.
When to watermark images in bulk
Protect and brand every image you publish.
Protect product photos
Stamp your brand on product shots so competitors can't lift them for their own listings.
Brand your images
Add a logo or handle to every image so your brand travels with it across social and the web.
Mark proofs & previews
Watermark client proofs and samples so they can review without using the final files.
Copyright before posting
Add a © notice to a whole gallery in one batch before it goes public.
Text, logo or tiled: which watermark?
Pick the style that fits how protected you need to be.
Text watermark
Fast and flexible — type your brand, handle or © notice and place it in a corner.
Logo watermark
Upload your logo for a polished, on-brand stamp on every image.
Tiled watermark
Repeat the watermark across the whole image so it can't be cropped out.
A watermark tool built for whole folders
100% free, no sign-up
Private — no upload, runs in your browser
Watermark hundreds of images at once
Text or logo watermark
Control position, size, opacity & tiling
One-click ZIP download
Who uses a bulk image watermark tool?
Anyone who needs to brand or protect a lot of images.
E-commerce sellers
Watermark an entire product catalog so your photos stay yours, even when they're shared around.
Photographers
Batch-watermark proofs and portfolios so previews are protected until clients pay for the originals.
Agencies & creators
Brand a whole campaign's worth of images with a consistent logo and placement in one go.
Tips for watermarking in bulk
Protect your work without ruining the image.
Keep opacity subtle
A 40–60% opacity watermark protects the image while still letting customers see the product clearly.
Tile to stop cropping
A single corner watermark can be cropped out — tile it across the image when protection matters most.
Mind the contrast
Use a light watermark on dark photos and a dark one on light photos so it stays readable.
Explore the toolkit
Bulk image generator
Generate hundreds of AI product images from a CSV.
OpenBulk image resizer
Resize, convert and compress images — free, in your browser.
OpenBulk image compressor
Compress images in bulk — smaller files, same quality, free in your browser.
OpenBulk image converter
Convert HEIC, PNG, JPG and WebP in bulk — free, in your browser.
OpenBulk image cropper
Crop images in bulk to one aspect ratio — free, in your browser.
OpenInstagram grid maker
Split a photo into a 3, 6 or 9-tile Instagram grid — free, in your browser.
OpenBulk image upscaler
Increase image resolution in batches.
Background remover
Remove backgrounds from product photos in bulk.
Bulk image watermark FAQ
Is it really free?
Yes — the bulk image watermark tool is completely free, with no sign-up, no account, and no limit on how many images you watermark.
Are my images uploaded anywhere?
No. The whole watermark tool runs in your browser on your own device, so your images and logo are never uploaded and never leave your computer.
Can I use my own logo?
Yes — switch to logo mode and upload your logo (a transparent PNG works best). It's stamped onto every image at the size, position and opacity you choose.
Can I add a text watermark instead?
Yes — type any text, such as your brand, social handle or a © notice, and place it where you like with full control over size and opacity.
Can I tile the watermark across the image?
Yes — turn on tiling to repeat the watermark across the whole image so it can't simply be cropped out.
Where can I place the watermark?
Anywhere from the nine standard positions — corners, edges or center — or tile it across the entire image.
Will the watermark lower image quality?
No — the watermark is drawn on top of your image and the result is exported at the quality you choose, so the photo stays sharp.
Can I watermark hundreds of images at once?
Yes. Add a whole folder and the same watermark is applied to every image, then downloaded as a single ZIP.
What formats can I export?
Keep the original format, or export your watermarked images as JPG, PNG or WebP, with a quality setting for the lossy formats.
Do I need to install anything?
No. The bulk image watermark tool runs in any modern browser — nothing to install and nothing to sign up for.