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§ · free tool
Bulk watermark. Every image, one pass.
Stamp a text label or your logo across a whole folder of photos at once — control size, opacity, rotation, position and tiling. Everything runs on your device; nothing is uploaded.
A free online tool by Digital Heroes
Drop images here
or click to browse — JPG, PNG, WebP, GIF
Files never leave your browser
6%
55%
0°
4%
Distance from the edges — ignored when tiling.
No images yet
Every watermark is drawn with your device's own canvas — nothing is uploaded.
Watermark a whole folder, privately
Most batch-watermark sites upload every photo to a server first. This one draws each watermark with your device's own Canvas — instant, completely private, and it keeps working offline. Text and logo watermarking, per-image download, and one-click ZIP export of the entire batch are all free, with no sign-up and no limits.
§ 02 · what you can do
One setup, the whole batch.
Batch text watermarkingStamp any text string — a © line, a brand name, a URL — across dozens of images in a single pass.
Logo watermarkingOverlay your PNG logo (transparency preserved) at a chosen scale, opacity and position on every photo.
Size, opacity & rotationFine-tune font size, transparency and angle from −90° to +90° for a professional, unobtrusive mark.
Nine positions + tile modePin the mark to any of nine spots with an edge margin, or tile it across the whole image for full protection.
One-click ZIP exportDownload any single watermarked image, or export the entire batch as one ZIP archive with one click.
Fully privateNo upload, no server, no account. Original formats (JPG, PNG, WebP) are preserved and images never leave your device.
§ 03 · how to use it
Four steps, no upload.
- Drop your images into the zone — JPG, PNG, WebP or GIF. They never leave your device.
- Choose Text or Logo mode, then set the text, color, size, opacity and rotation — or load a logo and pick its scale.
- Pick a position on the 3×3 grid, adjust the edge margin, or switch on tile mode to repeat the mark everywhere.
- Watch the live previews update, then download an image individually or grab the whole batch with Download all (.zip).
§ 04 · faq
Frequently asked questions.
Is Bulk Watermark free?
Yes — completely free for everyone. Text and logo watermarking, per-image download and one-click ZIP export are all included, with no sign-up, no account and no usage limits.
Are my images uploaded anywhere?
No. Every watermark is drawn locally with your browser's own canvas, so your photos and your logo never leave your device and nothing is sent to a server.
Does it work offline?
Yes. Once the page has loaded, all the watermarking, previewing and ZIP export runs locally, so it keeps working without a connection.
What image formats can I watermark?
JPG, PNG, WebP and GIF go in. Each image is exported back in its original family — JPG stays JPG, WebP stays WebP, and everything else exports as PNG so transparency is kept.
What's the difference between a fixed and a tiled watermark?
A fixed watermark sits once in the position you choose on the grid, at the edge margin you set. Tile mode repeats the text diagonally across the entire image, which is harder to crop out and better for protecting work you're sharing publicly.
Is there a limit on how many images I can do at once?
There's no hard cap — the batch is limited only by your device's memory, since everything runs locally. Very large batches of high-resolution photos will use more RAM while previews render.
Published · Last updated .
